CLEAROCEAN MAGIC

IMO 9849382

Vessel information

Vessel Name CLEAROCEAN MAGIC
IMO Number 9849382
MMSI 636018900
Vessel Type Tanker
Flag 🇱🇷 Liberia
Call Sign D5RX8
Length 183 m
Beam 32 m

Detected Events (100)

Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 14, 2026 06:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 1h 13m
  • Data Points: 34 AIS positions
  • Period: 2026-03-14T06:02:10+00:00 to 2026-03-14T07:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 73,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-03-14T06:02:10+00:00",
        "lat": 34.7081400000000002137312549166381359100341796875,
        "lon": 33.31992000000000331283445120789110660552978515625
    },
    "last_point": {
        "ts": "2026-03-14T07:15:11+00:00",
        "lat": 34.63705999999999818328433320857584476470947265625,
        "lon": 33.290608300000002373053575865924358367919921875
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 14, 2026 05:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 2h 13m
  • Data Points: 47 AIS positions
  • Period: 2026-03-14T05:02:11+00:00 to 2026-03-14T07:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 133,
    "points_in_zone": 47,
    "first_point": {
        "ts": "2026-03-14T05:02:11+00:00",
        "lat": 34.70812670000000110803739516995847225189208984375,
        "lon": 33.319933300000002418528310954570770263671875
    },
    "last_point": {
        "ts": "2026-03-14T07:15:11+00:00",
        "lat": 34.63705999999999818328433320857584476470947265625,
        "lon": 33.290608300000002373053575865924358367919921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 14, 2026 05:02 UTC 75.0% ▼
  • Duration: 1h 49m
  • Radius: 1,088 meters
  • Data Points: 30 AIS positions
  • Centroid: 34.7075, 33.3190
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 1088.299999999999954525264911353588104248046875,
    "duration_minutes": 109.2999999999999971578290569595992565155029296875,
    "points": 30,
    "centroid": {
        "lat": 34.7075143933333407630925648845732212066650390625,
        "lon": 33.3189996633333294084877707064151763916015625
    },
    "bbox": {
        "min_lat": 34.70011170000000078061930253170430660247802734375,
        "min_lon": 33.311205000000001064108801074326038360595703125,
        "max_lat": 34.70830000000000126192389870993793010711669921875,
        "max_lon": 33.319981699999999591454979963600635528564453125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 14, 2026 05:02 UTC 71/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 162 meters
  • Duration: 1h 9m
  • Period: 2026-03-14T05:02:11+00:00 to 2026-03-14T06:11:10+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 71/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 162m) for 69 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 137m, avg 162m
Duration15/25Duration 69 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency12/15Distance variance ±46m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-14T11:45:02.165295+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.69999999999998863131622783839702606201171875,
    "avg_distance_m": 162,
    "distance_consistency_m": 45.7999999999999971578290569595992565155029296875,
    "duration_minutes": 69,
    "overlap_duration_s": 4139,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.340000000000000024424906541753443889319896697998046875,
    "speed_b_std": 0.65000000000000002220446049250313080847263336181640625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.340000000000000024424906541753443889319896697998046875,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-03-14T05:02:11+00:00",
        "end": "2026-03-14T06:11:10+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 71,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 137m, avg 162m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 69 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b146m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 162m) for 69 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7074544999999972105797496624290943145751953125,
            "lon": 33.31985610000000264108166447840631008148193359375
        },
        "time_window": {
            "start_ts": "2026-03-14T05:02:11+00:00",
            "end_ts": "2026-03-14T06:11:10+00:00"
        },
        "searched_at": "2026-03-14T11:45:02.165295+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 14, 2026 04:26 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 2h 49m
  • Data Points: 51 AIS positions
  • Period: 2026-03-14T04:26:09+00:00 to 2026-03-14T07:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 169,
    "points_in_zone": 51,
    "first_point": {
        "ts": "2026-03-14T04:26:09+00:00",
        "lat": 34.70812000000000097088559414260089397430419921875,
        "lon": 33.3199299999999993815436027944087982177734375
    },
    "last_point": {
        "ts": "2026-03-14T07:15:11+00:00",
        "lat": 34.63705999999999818328433320857584476470947265625,
        "lon": 33.290608300000002373053575865924358367919921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 14, 2026 04:26 UTC 75.0% ▼
  • Duration: 2h 25m
  • Radius: 1,101 meters
  • Data Points: 34 AIS positions
  • Centroid: 34.7076, 33.3191
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 1100.799999999999954525264911353588104248046875,
    "duration_minutes": 145.400000000000005684341886080801486968994140625,
    "points": 34,
    "centroid": {
        "lat": 34.707584217647053037580917589366436004638671875,
        "lon": 33.31911073235294651340154814533889293670654296875
    },
    "bbox": {
        "min_lat": 34.70011170000000078061930253170430660247802734375,
        "min_lon": 33.311205000000001064108801074326038360595703125,
        "max_lat": 34.70830000000000126192389870993793010711669921875,
        "max_lon": 33.319981699999999591454979963600635528564453125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 14, 2026 04:26 UTC 76/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 158 meters
  • Duration: 1h 45m
  • Period: 2026-03-14T04:26:09+00:00 to 2026-03-14T06:11:10+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 76/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 158m) for 105 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 137m, avg 158m
Duration20/25Duration 105 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency12/15Distance variance ±41m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-14T10:15:01.742124+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.69999999999998863131622783839702606201171875,
    "avg_distance_m": 158.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 41.39999999999999857891452847979962825775146484375,
    "duration_minutes": 105,
    "overlap_duration_s": 6301,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.270000000000000017763568394002504646778106689453125,
    "speed_b_std": 0.59999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.270000000000000017763568394002504646778106689453125,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-03-14T04:26:09+00:00",
        "end": "2026-03-14T06:11:10+00:00"
    },
    "points_count": {
        "vessel_a": 20,
        "vessel_b": 20
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 76,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 137m, avg 158m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 105 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b141m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 158m) for 105 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70746439999999921610651654191315174102783203125,
            "lon": 33.31981880000000018071659724228084087371826171875
        },
        "time_window": {
            "start_ts": "2026-03-14T04:26:09+00:00",
            "end_ts": "2026-03-14T06:11:10+00:00"
        },
        "searched_at": "2026-03-14T10:15:01.742124+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 14, 2026 03:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 4h 13m
  • Data Points: 55 AIS positions
  • Period: 2026-03-14T03:02:07+00:00 to 2026-03-14T07:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 253.099999999999994315658113919198513031005859375,
    "points_in_zone": 55,
    "first_point": {
        "ts": "2026-03-14T03:02:07+00:00",
        "lat": 34.70811330000000083373379311524331569671630859375,
        "lon": 33.31994830000000007430571713484823703765869140625
    },
    "last_point": {
        "ts": "2026-03-14T07:15:11+00:00",
        "lat": 34.63705999999999818328433320857584476470947265625,
        "lon": 33.290608300000002373053575865924358367919921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 14, 2026 03:02 UTC 75.0% ▼
  • Duration: 3h 49m
  • Radius: 1,111 meters
  • Data Points: 38 AIS positions
  • Centroid: 34.7076, 33.3192
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 1110.5,
    "duration_minutes": 229.400000000000005684341886080801486968994140625,
    "points": 38,
    "centroid": {
        "lat": 34.70763789473684113318086019717156887054443359375,
        "lon": 33.3191966184210599521975382231175899505615234375
    },
    "bbox": {
        "min_lat": 34.70011170000000078061930253170430660247802734375,
        "min_lon": 33.311205000000001064108801074326038360595703125,
        "max_lat": 34.70830000000000126192389870993793010711669921875,
        "max_lon": 33.319981699999999591454979963600635528564453125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 14, 2026 03:02 UTC 81/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 155 meters
  • Duration: 3h 9m
  • Period: 2026-03-14T03:02:07+00:00 to 2026-03-14T06:11:10+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 81/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 155m) for 189 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 155m
Duration25/25Duration 189 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency12/15Distance variance ±38m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-14T09:45:01.947398+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 155.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 38.39999999999999857891452847979962825775146484375,
    "duration_minutes": 189.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 11343,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_std": 0.5500000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-03-14T03:02:07+00:00",
        "end": "2026-03-14T06:11:10+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 81,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 155m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 189 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b138m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 155m) for 189 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70747159999999809087967150844633579254150390625,
            "lon": 33.31979150000000089448803919367492198944091796875
        },
        "time_window": {
            "start_ts": "2026-03-14T03:02:07+00:00",
            "end_ts": "2026-03-14T06:11:10+00:00"
        },
        "searched_at": "2026-03-14T09:45:01.947398+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 14, 2026 02:56 UTC 81/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 154 meters
  • Duration: 3h 15m
  • Period: 2026-03-14T02:56:11+00:00 to 2026-03-14T06:11:10+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 81/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 154m) for 195 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 154m
Duration25/25Duration 195 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency12/15Distance variance ±37m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-14T08:45:02.165889+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 153.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 37,
    "duration_minutes": 195,
    "overlap_duration_s": 11699,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_b_std": 0.5300000000000000266453525910037569701671600341796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2099999999999999922284388276239042170345783233642578125,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-03-14T02:56:11+00:00",
        "end": "2026-03-14T06:11:10+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 81,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 154m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 195 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b137m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 154m) for 195 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7074740999999988844137988053262233734130859375,
            "lon": 33.3197811000000001513399183750152587890625
        },
        "time_window": {
            "start_ts": "2026-03-14T02:56:11+00:00",
            "end_ts": "2026-03-14T06:11:10+00:00"
        },
        "searched_at": "2026-03-14T08:45:02.165889+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 14, 2026 02:56 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 4h 19m
  • Data Points: 57 AIS positions
  • Period: 2026-03-14T02:56:11+00:00 to 2026-03-14T07:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 259,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-03-14T02:56:11+00:00",
        "lat": 34.70809669999999869105522520840167999267578125,
        "lon": 33.319936699999999518695403821766376495361328125
    },
    "last_point": {
        "ts": "2026-03-14T07:15:11+00:00",
        "lat": 34.63705999999999818328433320857584476470947265625,
        "lon": 33.290608300000002373053575865924358367919921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 14, 2026 02:56 UTC 75.0% ▼
  • Duration: 3h 55m
  • Radius: 1,115 meters
  • Data Points: 40 AIS positions
  • Centroid: 34.7077, 33.3192
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 1114.59999999999990905052982270717620849609375,
    "duration_minutes": 235.30000000000001136868377216160297393798828125,
    "points": 40,
    "centroid": {
        "lat": 34.7076606250000025966073735617101192474365234375,
        "lon": 33.3192332875000118974639917723834514617919921875
    },
    "bbox": {
        "min_lat": 34.70011170000000078061930253170430660247802734375,
        "min_lon": 33.311205000000001064108801074326038360595703125,
        "max_lat": 34.70830000000000126192389870993793010711669921875,
        "max_lon": 33.319981699999999591454979963600635528564453125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 14, 2026 01:07 UTC 84/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 150 meters
  • Duration: 5h 3m
  • Period: 2026-03-14T01:07:23+00:00 to 2026-03-14T06:11:10+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 84/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 150m) for 304 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 150m
Duration25/25Duration 304 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency12/15Distance variance ±30m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-14T06:45:01.509766+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 149.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 30.300000000000000710542735760100185871124267578125,
    "duration_minutes": 303.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 18227,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_b_std": 0.429999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2099999999999999922284388276239042170345783233642578125,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-03-14T01:07:23+00:00",
        "end": "2026-03-14T06:11:10+00:00"
    },
    "points_count": {
        "vessel_a": 40,
        "vessel_b": 40
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 84,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 150m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 304 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b130m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 150m) for 304 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7074874999999991587174008600413799285888671875,
            "lon": 33.31973930000000194695530808530747890472412109375
        },
        "time_window": {
            "start_ts": "2026-03-14T01:07:23+00:00",
            "end_ts": "2026-03-14T06:11:10+00:00"
        },
        "searched_at": "2026-03-14T06:45:01.509766+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 14, 2026 01:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 7m
  • Data Points: 71 AIS positions
  • Period: 2026-03-14T01:07:23+00:00 to 2026-03-14T07:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 367.80000000000001136868377216160297393798828125,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-03-14T01:07:23+00:00",
        "lat": 34.70811499999999938381733954884111881256103515625,
        "lon": 33.31994329999999848723746254108846187591552734375
    },
    "last_point": {
        "ts": "2026-03-14T07:15:11+00:00",
        "lat": 34.63705999999999818328433320857584476470947265625,
        "lon": 33.290608300000002373053575865924358367919921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 14, 2026 01:07 UTC 75.0% ▼
  • Duration: 5h 44m
  • Radius: 1,135 meters
  • Data Points: 54 AIS positions
  • Centroid: 34.7078, 33.3194
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 1135.299999999999954525264911353588104248046875,
    "duration_minutes": 344.1000000000000227373675443232059478759765625,
    "points": 54,
    "centroid": {
        "lat": 34.707777225925923403337947092950344085693359375,
        "lon": 33.31941487222221809361144551075994968414306640625
    },
    "bbox": {
        "min_lat": 34.70011170000000078061930253170430660247802734375,
        "min_lon": 33.311205000000001064108801074326038360595703125,
        "max_lat": 34.70830000000000126192389870993793010711669921875,
        "max_lon": 33.319981699999999591454979963600635528564453125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 23:49 UTC 87/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 149 meters
  • Duration: 6h 21m
  • Period: 2026-03-13T23:49:27+00:00 to 2026-03-14T06:11:10+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 87/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 149m) for 382 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 149m
Duration25/25Duration 382 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±29m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 149.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 29.199999999999999289457264239899814128875732421875,
    "duration_minutes": 381.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 22903,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2200000000000000011102230246251565404236316680908203125,
    "speed_b_std": 0.419999999999999984456877655247808434069156646728515625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2200000000000000011102230246251565404236316680908203125,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-03-13T23:49:27+00:00",
        "end": "2026-03-14T06:11:10+00:00"
    },
    "points_count": {
        "vessel_a": 43,
        "vessel_b": 43
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 87,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 149m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 382 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b129m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 149m) for 382 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 23:40 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 47 AIS positions
  • Period: 2026-03-13T23:52:23+00:00 to 2026-03-14T06:28:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 47,
    "first_point": {
        "ts": "2026-03-13T23:52:23+00:00",
        "lat": 34.70816330000000249356162385083734989166259765625,
        "lon": 33.3199316999999979316271492280066013336181640625
    },
    "last_point": {
        "ts": "2026-03-14T06:28:30+00:00",
        "lat": 34.7080883000000000038198777474462985992431640625,
        "lon": 33.31996670000000193567757378332316875457763671875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 23:40 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 7 meters
  • Data Points: 47 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 47,
    "centroid": {
        "lat": 34.70811283829787186050452874042093753814697265625,
        "lon": 33.3199302787233904155073105357587337493896484375
    },
    "bbox": {
        "min_lat": 34.70806499999999772398950881324708461761474609375,
        "min_lon": 33.31987500000000324007487506605684757232666015625,
        "max_lat": 34.70816500000000104364517028443515300750732421875,
        "max_lon": 33.319981699999999591454979963600635528564453125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 22:16 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 142 meters
  • Duration: 6h 27m
  • Period: 2026-03-13T22:34:22+00:00 to 2026-03-14T05:02:11+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 142m) for 388 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 142m
Duration25/25Duration 388 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 142.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 387.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 23269,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-03-13T22:34:22+00:00",
        "end": "2026-03-14T05:02:11+00:00"
    },
    "points_count": {
        "vessel_a": 31,
        "vessel_b": 31
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 388 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 142m) for 388 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 22:16 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 33m
  • Data Points: 33 AIS positions
  • Period: 2026-03-13T22:31:22+00:00 to 2026-03-14T05:05:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 393.80000000000001136868377216160297393798828125,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-03-13T22:31:22+00:00",
        "lat": 34.70811830000000242080204770900309085845947265625,
        "lon": 33.3199316999999979316271492280066013336181640625
    },
    "last_point": {
        "ts": "2026-03-14T05:05:11+00:00",
        "lat": 34.7080883000000000038198777474462985992431640625,
        "lon": 33.31992000000000331283445120789110660552978515625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 22:16 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 8 meters
  • Data Points: 33 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 393.80000000000001136868377216160297393798828125,
    "points": 33,
    "centroid": {
        "lat": 34.7081154575757722113849013112485408782958984375,
        "lon": 33.319928678787874787303735502064228057861328125
    },
    "bbox": {
        "min_lat": 34.70806499999999772398950881324708461761474609375,
        "min_lon": 33.31986830000000310292307403869926929473876953125,
        "max_lat": 34.70818669999999883657437749207019805908203125,
        "max_lon": 33.31997170000000352274582837708294391632080078125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 13, 2026 21:07 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 142 meters
  • Duration: 6h 9m
  • Period: 2026-03-13T21:07:23+00:00 to 2026-03-14T03:17:10+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 142m) for 370 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 142m
Duration25/25Duration 370 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-14T03:45:09.020693+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 142.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 369.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 22187,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.25,
    "speed_b_std": 0.200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.25,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T21:07:23+00:00",
        "end": "2026-03-14T03:17:10+00:00"
    },
    "points_count": {
        "vessel_a": 33,
        "vessel_b": 33
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 370 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 142m) for 370 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.707515499999999519786797463893890380859375,
            "lon": 33.319657599999999320061760954558849334716796875
        },
        "time_window": {
            "start_ts": "2026-03-13T21:07:23+00:00",
            "end_ts": "2026-03-14T03:17:10+00:00"
        },
        "searched_at": "2026-03-14T03:45:09.020693+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 21:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 15m
  • Data Points: 34 AIS positions
  • Period: 2026-03-13T21:01:24+00:00 to 2026-03-14T03:17:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 375.80000000000001136868377216160297393798828125,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-03-13T21:01:24+00:00",
        "lat": 34.70811669999999793390088598243892192840576171875,
        "lon": 33.31998829999999855999703868292272090911865234375
    },
    "last_point": {
        "ts": "2026-03-14T03:17:10+00:00",
        "lat": 34.70806499999999772398950881324708461761474609375,
        "lon": 33.3199182999999976573235471732914447784423828125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 21:01 UTC 75.0% ▼
  • Duration: 6h 15m
  • Radius: 8 meters
  • Data Points: 34 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.300000000000000710542735760100185871124267578125,
    "duration_minutes": 375.80000000000001136868377216160297393798828125,
    "points": 34,
    "centroid": {
        "lat": 34.7081161323529414630684186704456806182861328125,
        "lon": 33.31992764117646999011412844993174076080322265625
    },
    "bbox": {
        "min_lat": 34.70806499999999772398950881324708461761474609375,
        "min_lon": 33.31986830000000310292307403869926929473876953125,
        "max_lat": 34.70818669999999883657437749207019805908203125,
        "max_lon": 33.31998829999999855999703868292272090911865234375
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 20:52 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 142 meters
  • Duration: 6h 21m
  • Period: 2026-03-13T20:55:26+00:00 to 2026-03-14T03:17:10+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 142m) for 382 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 142m
Duration25/25Duration 382 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 136.5,
    "avg_distance_m": 142.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 381.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 22904,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.25,
    "speed_b_std": 0.200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.25,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T20:55:26+00:00",
        "end": "2026-03-14T03:17:10+00:00"
    },
    "points_count": {
        "vessel_a": 36,
        "vessel_b": 36
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 382 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 136m, avg 142m) for 382 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 20:52 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 24m
  • Data Points: 37 AIS positions
  • Period: 2026-03-13T20:52:26+00:00 to 2026-03-14T03:17:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 384.69999999999998863131622783839702606201171875,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-03-13T20:52:26+00:00",
        "lat": 34.70812169999999952096914057619869709014892578125,
        "lon": 33.31994999999999862438926356844604015350341796875
    },
    "last_point": {
        "ts": "2026-03-14T03:17:10+00:00",
        "lat": 34.70806499999999772398950881324708461761474609375,
        "lon": 33.3199182999999976573235471732914447784423828125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 20:52 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 8 meters
  • Data Points: 37 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 384.69999999999998863131622783839702606201171875,
    "points": 37,
    "centroid": {
        "lat": 34.7081156810810824708823929540812969207763671875,
        "lon": 33.31992927567568330005087773315608501434326171875
    },
    "bbox": {
        "min_lat": 34.70806499999999772398950881324708461761474609375,
        "min_lon": 33.31986830000000310292307403869926929473876953125,
        "max_lat": 34.70818669999999883657437749207019805908203125,
        "max_lon": 33.31998829999999855999703868292272090911865234375
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 19:28 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 138 meters
  • Average Distance: 143 meters
  • Duration: 6h 21m
  • Period: 2026-03-13T19:31:23+00:00 to 2026-03-14T01:52:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 138m, avg 142m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 138m, avg 142m
Duration25/25Duration 381 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 138,
    "avg_distance_m": 142.5,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 381.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22863,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.320000000000000006661338147750939242541790008544921875,
    "speed_b_std": 0.190000000000000002220446049250313080847263336181640625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.320000000000000006661338147750939242541790008544921875,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T19:31:23+00:00",
        "end": "2026-03-14T01:52:26+00:00"
    },
    "points_count": {
        "vessel_a": 36,
        "vessel_b": 36
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 138m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 381 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 138m, avg 142m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 19:28 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 24m
  • Data Points: 37 AIS positions
  • Period: 2026-03-13T19:28:26+00:00 to 2026-03-14T01:52:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-03-13T19:28:26+00:00",
        "lat": 34.70812500000000255795384873636066913604736328125,
        "lon": 33.3199299999999993815436027944087982177734375
    },
    "last_point": {
        "ts": "2026-03-14T01:52:26+00:00",
        "lat": 34.7081017000000002781234798021614551544189453125,
        "lon": 33.319895000000002482920535840094089508056640625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 19:28 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 8 meters
  • Data Points: 37 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8,
    "duration_minutes": 384,
    "points": 37,
    "centroid": {
        "lat": 34.70811964594594911659442004747688770294189453125,
        "lon": 33.3199303135135096454177983105182647705078125
    },
    "bbox": {
        "min_lat": 34.70808170000000103527781902812421321868896484375,
        "min_lon": 33.31986830000000310292307403869926929473876953125,
        "max_lat": 34.70818669999999883657437749207019805908203125,
        "max_lon": 33.31998829999999855999703868292272090911865234375
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 18:07 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 142 meters
  • Duration: 5h 50m
  • Period: 2026-03-13T18:07:25+00:00 to 2026-03-13T23:58:22+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.4 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 142m
Duration25/25Duration 351 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.5,
    "avg_distance_m": 141.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 350.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 21057,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.38000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.38000000000000000444089209850062616169452667236328125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T18:07:25+00:00",
        "end": "2026-03-13T23:58:22+00:00"
    },
    "points_count": {
        "vessel_a": 27,
        "vessel_b": 27
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 351 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 18:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 54m
  • Data Points: 28 AIS positions
  • Period: 2026-03-13T18:04:22+00:00 to 2026-03-13T23:58:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 354,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-03-13T18:04:22+00:00",
        "lat": 34.70808670000000262234607362188398838043212890625,
        "lon": 33.31999669999999724723238614387810230255126953125
    },
    "last_point": {
        "ts": "2026-03-13T23:58:22+00:00",
        "lat": 34.70815499999999786950866109691560268402099609375,
        "lon": 33.31988830000000234576873481273651123046875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 18:04 UTC 75.0% ▼
  • Duration: 5h 54m
  • Radius: 10 meters
  • Data Points: 28 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 10.199999999999999289457264239899814128875732421875,
    "duration_minutes": 354,
    "points": 28,
    "centroid": {
        "lat": 34.70811560000000639547579339705407619476318359375,
        "lon": 33.319927917857143029323196969926357269287109375
    },
    "bbox": {
        "min_lat": 34.70803670000000096251824288628995418548583984375,
        "min_lon": 33.31986830000000310292307403869926929473876953125,
        "max_lat": 34.70818669999999883657437749207019805908203125,
        "max_lon": 33.31999669999999724723238614387810230255126953125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 16:40 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 141 meters
  • Duration: 5h 44m
  • Period: 2026-03-13T16:49:26+00:00 to 2026-03-13T22:34:22+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.4 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 141m) for 345 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 141m
Duration25/25Duration 345 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.5,
    "avg_distance_m": 140.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 344.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 20696,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.38000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.38000000000000000444089209850062616169452667236328125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T16:49:26+00:00",
        "end": "2026-03-13T22:34:22+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 141m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 345 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 141m) for 345 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 16:40 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 53m
  • Data Points: 27 AIS positions
  • Period: 2026-03-13T16:40:27+00:00 to 2026-03-13T22:34:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 353.8999999999999772626324556767940521240234375,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-03-13T16:40:27+00:00",
        "lat": 34.7080983000000031779563869349658489227294921875,
        "lon": 33.3199766999999980043867253698408603668212890625
    },
    "last_point": {
        "ts": "2026-03-13T22:34:22+00:00",
        "lat": 34.7081299999999970395947457291185855865478515625,
        "lon": 33.3199182999999976573235471732914447784423828125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 16:40 UTC 75.0% ▼
  • Duration: 5h 53m
  • Radius: 10 meters
  • Data Points: 27 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 353.8999999999999772626324556767940521240234375,
    "points": 27,
    "centroid": {
        "lat": 34.7081022814814872390343225561082363128662109375,
        "lon": 33.3199375962962989206062047742307186126708984375
    },
    "bbox": {
        "min_lat": 34.70803670000000096251824288628995418548583984375,
        "min_lon": 33.31987000000000165300662047229707241058349609375,
        "max_lat": 34.7081333000000000765794538892805576324462890625,
        "max_lon": 33.31999669999999724723238614387810230255126953125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 15:16 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 141 meters
  • Duration: 5h 50m
  • Period: 2026-03-13T15:19:27+00:00 to 2026-03-13T21:10:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.4 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 140m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 140m
Duration25/25Duration 351 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.5,
    "avg_distance_m": 140.5,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 350.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 21056,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.36999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.36999999999999999555910790149937383830547332763671875,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T15:19:27+00:00",
        "end": "2026-03-13T21:10:23+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 140m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 351 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 140m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 15:16 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 53m
  • Data Points: 25 AIS positions
  • Period: 2026-03-13T15:16:27+00:00 to 2026-03-13T21:10:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 353.8999999999999772626324556767940521240234375,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-03-13T15:16:27+00:00",
        "lat": 34.70808000000000248519427259452641010284423828125,
        "lon": 33.31989999999999696456143283285200595855712890625
    },
    "last_point": {
        "ts": "2026-03-13T21:10:23+00:00",
        "lat": 34.70810829999999924666553852148354053497314453125,
        "lon": 33.31991670000000027584974304772913455963134765625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 15:16 UTC 75.0% ▼
  • Duration: 5h 53m
  • Radius: 9 meters
  • Data Points: 25 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9.199999999999999289457264239899814128875732421875,
    "duration_minutes": 353.8999999999999772626324556767940521240234375,
    "points": 25,
    "centroid": {
        "lat": 34.70809659600001140233871410600841045379638671875,
        "lon": 33.31993906799999649592791683971881866455078125
    },
    "bbox": {
        "min_lat": 34.70803670000000096251824288628995418548583984375,
        "min_lon": 33.31987000000000165300662047229707241058349609375,
        "max_lat": 34.7081299999999970395947457291185855865478515625,
        "max_lon": 33.31999669999999724723238614387810230255126953125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 14:01 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 140 meters
  • Duration: 5h 45m
  • Period: 2026-03-13T14:01:22+00:00 to 2026-03-13T19:46:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.4 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 140m) for 345 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 140m
Duration25/25Duration 345 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.5,
    "avg_distance_m": 139.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 345,
    "overlap_duration_s": 20701,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.34999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.34999999999999997779553950749686919152736663818359375,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T14:01:22+00:00",
        "end": "2026-03-13T19:46:23+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 140m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 345 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 140m) for 345 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 14:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 45m
  • Data Points: 22 AIS positions
  • Period: 2026-03-13T14:01:22+00:00 to 2026-03-13T19:46:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 345,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-03-13T14:01:22+00:00",
        "lat": 34.708089999999998553903424181044101715087890625,
        "lon": 33.3199350000000009686118573881685733795166015625
    },
    "last_point": {
        "ts": "2026-03-13T19:46:23+00:00",
        "lat": 34.7081117000000034522599889896810054779052734375,
        "lon": 33.3199299999999993815436027944087982177734375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 14:01 UTC 75.0% ▼
  • Duration: 5h 45m
  • Radius: 9 meters
  • Data Points: 22 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.699999999999999289457264239899814128875732421875,
    "duration_minutes": 345,
    "points": 22,
    "centroid": {
        "lat": 34.70809272272727952213244861923158168792724609375,
        "lon": 33.31993644090908901489456184208393096923828125
    },
    "bbox": {
        "min_lat": 34.70803670000000096251824288628995418548583984375,
        "min_lon": 33.31987000000000165300662047229707241058349609375,
        "max_lat": 34.7081299999999970395947457291185855865478515625,
        "max_lon": 33.31999669999999724723238614387810230255126953125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 13:52 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 53m
  • Data Points: 24 AIS positions
  • Period: 2026-03-13T13:52:26+00:00 to 2026-03-13T19:46:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 353.8999999999999772626324556767940521240234375,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-03-13T13:52:26+00:00",
        "lat": 34.7081117000000034522599889896810054779052734375,
        "lon": 33.31996170000000034860931918956339359283447265625
    },
    "last_point": {
        "ts": "2026-03-13T19:46:23+00:00",
        "lat": 34.7081117000000034522599889896810054779052734375,
        "lon": 33.3199299999999993815436027944087982177734375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 13:52 UTC 75.0% ▼
  • Duration: 5h 53m
  • Radius: 9 meters
  • Data Points: 24 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 353.8999999999999772626324556767940521240234375,
    "points": 24,
    "centroid": {
        "lat": 34.7080935375000052545146900229156017303466796875,
        "lon": 33.31993826666666080882350797764956951141357421875
    },
    "bbox": {
        "min_lat": 34.70803670000000096251824288628995418548583984375,
        "min_lon": 33.31987000000000165300662047229707241058349609375,
        "max_lat": 34.7081299999999970395947457291185855865478515625,
        "max_lon": 33.31999669999999724723238614387810230255126953125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 12:28 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 141 meters
  • Duration: 5h 51m
  • Period: 2026-03-13T12:31:26+00:00 to 2026-03-13T18:22:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 140m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 140m
Duration25/25Duration 351 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.5,
    "avg_distance_m": 140.5,
    "distance_consistency_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 351,
    "overlap_duration_s": 21059,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.309999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.190000000000000002220446049250313080847263336181640625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.309999999999999997779553950749686919152736663818359375,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T12:31:26+00:00",
        "end": "2026-03-13T18:22:25+00:00"
    },
    "points_count": {
        "vessel_a": 23,
        "vessel_b": 23
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 140m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 351 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 140m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 12:28 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 54m
  • Data Points: 24 AIS positions
  • Period: 2026-03-13T12:28:24+00:00 to 2026-03-13T18:22:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 354,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-03-13T12:28:24+00:00",
        "lat": 34.70817170000000118079697131179273128509521484375,
        "lon": 33.31994499999999703732100897468626499176025390625
    },
    "last_point": {
        "ts": "2026-03-13T18:22:25+00:00",
        "lat": 34.7080466999999970312273944728076457977294921875,
        "lon": 33.3198849999999993087840266525745391845703125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 12:28 UTC 75.0% ▼
  • Duration: 5h 54m
  • Radius: 10 meters
  • Data Points: 24 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 354,
    "points": 24,
    "centroid": {
        "lat": 34.7081000666666596998766181059181690216064453125,
        "lon": 33.3199456958333399825278320349752902984619140625
    },
    "bbox": {
        "min_lat": 34.70803670000000096251824288628995418548583984375,
        "min_lon": 33.31987000000000165300662047229707241058349609375,
        "max_lat": 34.70817170000000118079697131179273128509521484375,
        "max_lon": 33.3200082999999978028426994569599628448486328125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 11:04 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 142 meters
  • Duration: 5h 48m
  • Period: 2026-03-13T11:04:24+00:00 to 2026-03-13T16:52:24+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 142m) for 348 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 137m, avg 142m
Duration25/25Duration 348 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 137,
    "avg_distance_m": 141.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 348,
    "overlap_duration_s": 20880,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.2600000000000000088817841970012523233890533447265625,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2600000000000000088817841970012523233890533447265625,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        }
    },
    "time_window": {
        "start": "2026-03-13T11:04:24+00:00",
        "end": "2026-03-13T16:52:24+00:00"
    },
    "points_count": {
        "vessel_a": 23,
        "vessel_b": 23
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 137m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 348 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 142m) for 348 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 11:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 5h 57m
  • Data Points: 25 AIS positions
  • Period: 2026-03-13T11:01:22+00:00 to 2026-03-13T16:58:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 357,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-03-13T11:01:22+00:00",
        "lat": 34.70810329999999765959728392772376537322998046875,
        "lon": 33.31990830000000158861439558677375316619873046875
    },
    "last_point": {
        "ts": "2026-03-13T16:58:21+00:00",
        "lat": 34.7080832999999984167516231536865234375,
        "lon": 33.319978300000002491287887096405029296875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 11:01 UTC 75.0% ▼
  • Duration: 5h 57m
  • Radius: 8 meters
  • Data Points: 25 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 357,
    "points": 25,
    "centroid": {
        "lat": 34.708107323999996651764377020299434661865234375,
        "lon": 33.31994586399999747072797617875039577484130859375
    },
    "bbox": {
        "min_lat": 34.7080533000000031051968107931315898895263671875,
        "min_lon": 33.31989999999999696456143283285200595855712890625,
        "max_lat": 34.70817170000000118079697131179273128509521484375,
        "max_lon": 33.3200082999999978028426994569599628448486328125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 09:13 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 137 meters
  • Average Distance: 142 meters
  • Duration: 6h 21m
  • Period: 2026-03-13T09:13:23+00:00 to 2026-03-13T15:34:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 142m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 137m, avg 142m
Duration25/25Duration 381 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 137,
    "avg_distance_m": 142,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 381.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22863,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.2200000000000000011102230246251565404236316680908203125,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        }
    },
    "time_window": {
        "start": "2026-03-13T09:13:23+00:00",
        "end": "2026-03-13T15:34:26+00:00"
    },
    "points_count": {
        "vessel_a": 30,
        "vessel_b": 30
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 137m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 381 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 137m, avg 142m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 09:10 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 24m
  • Data Points: 31 AIS positions
  • Period: 2026-03-13T09:10:22+00:00 to 2026-03-13T15:34:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-03-13T09:10:22+00:00",
        "lat": 34.7081299999999970395947457291185855865478515625,
        "lon": 33.31994670000000269283191300928592681884765625
    },
    "last_point": {
        "ts": "2026-03-13T15:34:26+00:00",
        "lat": 34.7080832999999984167516231536865234375,
        "lon": 33.31993829999999690016920794732868671417236328125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 09:10 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 8 meters
  • Data Points: 31 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.5,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "points": 31,
    "centroid": {
        "lat": 34.70811553548387706769062788225710391998291015625,
        "lon": 33.31994236129032316284792614169418811798095703125
    },
    "bbox": {
        "min_lat": 34.70808000000000248519427259452641010284423828125,
        "min_lon": 33.31989999999999696456143283285200595855712890625,
        "max_lat": 34.708183300000001736407284624874591827392578125,
        "max_lon": 33.3200082999999978028426994569599628448486328125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 08:13 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 138 meters
  • Average Distance: 143 meters
  • Duration: 5h 57m
  • Period: 2026-03-13T08:13:25+00:00 to 2026-03-13T14:10:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 138m, avg 142m) for 357 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 138m, avg 142m
Duration25/25Duration 357 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260313T034219_20260313T034244_006740_00D9D3_429D_COG • Acquired: 2026-03-13T03:42:19.689095Z • Platform: sentinel-1c
SAR satellite preview for event 213240

Click image to view full size

Searched: 2026-03-13T15:00:07.383101+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 138.400000000000005684341886080801486968994140625,
    "avg_distance_m": 142.5,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 357,
    "overlap_duration_s": 21421,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.200000000000000011102230246251565404236316680908203125,
    "speed_b_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        }
    },
    "time_window": {
        "start": "2026-03-13T08:13:25+00:00",
        "end": "2026-03-13T14:10:26+00:00"
    },
    "points_count": {
        "vessel_a": 33,
        "vessel_b": 33
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 138m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 357 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 138m, avg 142m) for 357 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.7075162000000005946276360191404819488525390625,
            "lon": 33.3196717000000006692062015645205974578857421875
        },
        "time_window": {
            "start_ts": "2026-03-13T08:13:25+00:00",
            "end_ts": "2026-03-13T14:10:26+00:00"
        },
        "searched_at": "2026-03-13T15:00:07.383101+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260313T034219_20260313T034244_006740_00D9D3_429D_COG",
        "scene_datetime": "2026-03-13T03:42:19.689095Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.05001399999999733836375526152551174163818359375,
            "min_lat": 34.0380329999999986512193572707474231719970703125,
            "max_lon": 36.22561999999999926558302831836044788360595703125,
            "max_lat": 35.95595900000000000318323145620524883270263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_213240_thumbnail_20260313150011.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_213240_thumbnail_20260313150011.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 08:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 3m
  • Data Points: 34 AIS positions
  • Period: 2026-03-13T08:07:23+00:00 to 2026-03-13T14:10:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 363.1000000000000227373675443232059478759765625,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-03-13T08:07:23+00:00",
        "lat": 34.7080883000000000038198777474462985992431640625,
        "lon": 33.31994329999999848723746254108846187591552734375
    },
    "last_point": {
        "ts": "2026-03-13T14:10:26+00:00",
        "lat": 34.70810999999999779674908495508134365081787109375,
        "lon": 33.319940000000002555680111981928348541259765625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 08:07 UTC 75.0% ▼
  • Duration: 6h 3m
  • Radius: 7 meters
  • Data Points: 34 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 363.1000000000000227373675443232059478759765625,
    "points": 34,
    "centroid": {
        "lat": 34.7081165647058895729060168378055095672607421875,
        "lon": 33.31994445588235720379088888876140117645263671875
    },
    "bbox": {
        "min_lat": 34.70807500000000089812601800076663494110107421875,
        "min_lon": 33.31990830000000158861439558677375316619873046875,
        "max_lat": 34.708183300000001736407284624874591827392578125,
        "max_lon": 33.3200082999999978028426994569599628448486328125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 08:03 UTC 75/100 ▼
Vessel A: IMO 9723007 (ALDEBARAN) Bahamas
Vessel B: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
  • Minimum Distance: 338 meters
  • Average Distance: 338 meters
  • Duration: 1h 51m
  • Period: 2026-03-13T08:03:56+00:00 to 2026-03-13T09:54:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (ALDEBARAN and CLEAROCEAN MAGIC) maintained close proximity (min 338m, avg 338m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 338m, avg 338m
Duration20/25Duration 111 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260313T034219_20260313T034244_006740_00D9D3_429D_COG • Acquired: 2026-03-13T03:42:19.689095Z • Platform: sentinel-1c
SAR satellite preview for event 212789

Click image to view full size

Searched: 2026-03-13T12:45:06.976851+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "min_distance_m": 337.6000000000000227373675443232059478759765625,
    "avg_distance_m": 338.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 0.59999999999999997779553950749686919152736663818359375,
    "duration_minutes": 111,
    "overlap_duration_s": 6661,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-03-13T08:03:56+00:00",
        "end": "2026-03-13T09:54:57+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 338m, avg 338m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 111 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ALDEBARAN and CLEAROCEAN MAGIC) maintained close proximity (min 338m, avg 338m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70890750000000224417817662470042705535888671875,
            "lon": 33.32151040000000108420863398350775241851806640625
        },
        "time_window": {
            "start_ts": "2026-03-13T08:03:56+00:00",
            "end_ts": "2026-03-13T09:54:57+00:00"
        },
        "searched_at": "2026-03-13T12:45:06.976851+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260313T034219_20260313T034244_006740_00D9D3_429D_COG",
        "scene_datetime": "2026-03-13T03:42:19.689095Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.05001399999999733836375526152551174163818359375,
            "min_lat": 34.0380329999999986512193572707474231719970703125,
            "max_lon": 36.22561999999999926558302831836044788360595703125,
            "max_lat": 35.95595900000000000318323145620524883270263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212789_thumbnail_20260313124510.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212789_thumbnail_20260313124510.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 07:07 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 138 meters
  • Average Distance: 142 meters
  • Duration: 6h 18m
  • Period: 2026-03-13T07:52:22+00:00 to 2026-03-13T14:10:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 138m, avg 142m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 138m, avg 142m
Duration25/25Duration 378 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 138.400000000000005684341886080801486968994140625,
    "avg_distance_m": 142.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22684,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.190000000000000002220446049250313080847263336181640625,
    "speed_b_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.190000000000000002220446049250313080847263336181640625,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        }
    },
    "time_window": {
        "start": "2026-03-13T07:52:22+00:00",
        "end": "2026-03-13T14:10:26+00:00"
    },
    "points_count": {
        "vessel_a": 36,
        "vessel_b": 36
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 138m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 138m, avg 142m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 07:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 24m
  • Data Points: 37 AIS positions
  • Period: 2026-03-13T07:46:26+00:00 to 2026-03-13T14:10:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-03-13T07:46:26+00:00",
        "lat": 34.7081333000000000765794538892805576324462890625,
        "lon": 33.31994499999999703732100897468626499176025390625
    },
    "last_point": {
        "ts": "2026-03-13T14:10:26+00:00",
        "lat": 34.70810999999999779674908495508134365081787109375,
        "lon": 33.319940000000002555680111981928348541259765625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 07:01 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 8 meters
  • Data Points: 37 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.5,
    "duration_minutes": 384,
    "points": 37,
    "centroid": {
        "lat": 34.70811567027027422227547504007816314697265625,
        "lon": 33.31994431891892105568331317044794559478759765625
    },
    "bbox": {
        "min_lat": 34.70807500000000089812601800076663494110107421875,
        "min_lon": 33.31990830000000158861439558677375316619873046875,
        "max_lat": 34.708183300000001736407284624874591827392578125,
        "max_lon": 33.3200082999999978028426994569599628448486328125
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 06:13 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 142 meters
  • Duration: 6h 33m
  • Period: 2026-03-13T06:13:25+00:00 to 2026-03-13T12:46:24+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 393 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 142m
Duration25/25Duration 393 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260313T034219_20260313T034244_006740_00D9D3_429D_COG • Acquired: 2026-03-13T03:42:19.689095Z • Platform: sentinel-1c
SAR satellite preview for event 212929

Click image to view full size

Searched: 2026-03-13T13:15:01.963442+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.900000000000005684341886080801486968994140625,
    "avg_distance_m": 141.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 393,
    "overlap_duration_s": 23579,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T06:13:25+00:00",
        "end": "2026-03-13T12:46:24+00:00"
    },
    "points_count": {
        "vessel_a": 51,
        "vessel_b": 51
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 393 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 393 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.707511199999999007559381425380706787109375,
            "lon": 33.319666699999999082137946970760822296142578125
        },
        "time_window": {
            "start_ts": "2026-03-13T06:13:25+00:00",
            "end_ts": "2026-03-13T12:46:24+00:00"
        },
        "searched_at": "2026-03-13T13:15:01.963442+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260313T034219_20260313T034244_006740_00D9D3_429D_COG",
        "scene_datetime": "2026-03-13T03:42:19.689095Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.05001399999999733836375526152551174163818359375,
            "min_lat": 34.0380329999999986512193572707474231719970703125,
            "max_lon": 36.22561999999999926558302831836044788360595703125,
            "max_lat": 35.95595900000000000318323145620524883270263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212929_thumbnail_20260313131506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212929_thumbnail_20260313131506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 06:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 52 AIS positions
  • Period: 2026-03-13T06:10:23+00:00 to 2026-03-13T12:46:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-03-13T06:10:23+00:00",
        "lat": 34.70814500000000180079950951039791107177734375,
        "lon": 33.31986169999999702895365771837532520294189453125
    },
    "last_point": {
        "ts": "2026-03-13T12:46:24+00:00",
        "lat": 34.7081232999999969024429447017610073089599609375,
        "lon": 33.31996000000000179852577275596559047698974609375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 06:04 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 12 meters
  • Data Points: 52 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 11.699999999999999289457264239899814128875732421875,
    "duration_minutes": 396,
    "points": 52,
    "centroid": {
        "lat": 34.708112242307691985843121074140071868896484375,
        "lon": 33.31993544230768833358524716459214687347412109375
    },
    "bbox": {
        "min_lat": 34.70802669999999778838173369877040386199951171875,
        "min_lon": 33.31982500000000158024704433046281337738037109375,
        "max_lat": 34.708183300000001736407284624874591827392578125,
        "max_lon": 33.32001170000000200843714992515742778778076171875
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 13, 2026 05:09 UTC 80/100 ▼
Vessel A: IMO 9723007 (ALDEBARAN) Bahamas
Vessel B: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
  • Minimum Distance: 331 meters
  • Average Distance: 337 meters
  • Duration: 4h 45m
  • Period: 2026-03-13T05:09:57+00:00 to 2026-03-13T09:54:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (ALDEBARAN and CLEAROCEAN MAGIC) maintained close proximity (min 331m, avg 337m) for 285 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 331m, avg 337m
Duration25/25Duration 285 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T11:45:01.803515+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "min_distance_m": 331.30000000000001136868377216160297393798828125,
    "avg_distance_m": 336.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 285,
    "overlap_duration_s": 17100,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-03-13T05:09:57+00:00",
        "end": "2026-03-13T09:54:57+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 331m, avg 337m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 285 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALDEBARAN and CLEAROCEAN MAGIC) maintained close proximity (min 331m, avg 337m) for 285 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70890370000000046957211452536284923553466796875,
            "lon": 33.32149989999999917245077085681259632110595703125
        },
        "time_window": {
            "start_ts": "2026-03-13T05:09:57+00:00",
            "end_ts": "2026-03-13T09:54:57+00:00"
        },
        "searched_at": "2026-03-13T11:45:01.803515+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 13, 2026 05:07 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 142 meters
  • Duration: 6h 15m
  • Period: 2026-03-13T05:07:21+00:00 to 2026-03-13T11:22:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 375 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 142m
Duration25/25Duration 375 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T11:45:07.593904+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.900000000000005684341886080801486968994140625,
    "avg_distance_m": 141.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 375.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22505,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T05:07:21+00:00",
        "end": "2026-03-13T11:22:26+00:00"
    },
    "points_count": {
        "vessel_a": 63,
        "vessel_b": 63
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 375 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 375 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70751150000000251338860834948718547821044921875,
            "lon": 33.3196635999999983823727234266698360443115234375
        },
        "time_window": {
            "start_ts": "2026-03-13T05:07:21+00:00",
            "end_ts": "2026-03-13T11:22:26+00:00"
        },
        "searched_at": "2026-03-13T11:45:07.593904+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 05:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 35m
  • Data Points: 52 AIS positions
  • Period: 2026-03-13T05:52:27+00:00 to 2026-03-13T12:28:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-03-13T05:52:27+00:00",
        "lat": 34.70815830000000090649336925707757472991943359375,
        "lon": 33.31991330000000317568265018053352832794189453125
    },
    "last_point": {
        "ts": "2026-03-13T12:28:24+00:00",
        "lat": 34.70817170000000118079697131179273128509521484375,
        "lon": 33.31994499999999703732100897468626499176025390625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 05:04 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 11 meters
  • Data Points: 52 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 11.300000000000000710542735760100185871124267578125,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 52,
    "centroid": {
        "lat": 34.70811160000000228365024668164551258087158203125,
        "lon": 33.3199290307692308488185517489910125732421875
    },
    "bbox": {
        "min_lat": 34.70802669999999778838173369877040386199951171875,
        "min_lon": 33.31982500000000158024704433046281337738037109375,
        "max_lat": 34.708183300000001736407284624874591827392578125,
        "max_lon": 33.32001170000000200843714992515742778778076171875
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 04:31 UTC 80/100 ▼
Vessel A: IMO 9723007 (ALDEBARAN) Bahamas
Vessel B: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
  • Minimum Distance: 331 meters
  • Average Distance: 337 meters
  • Duration: 4h 57m
  • Period: 2026-03-13T04:57:56+00:00 to 2026-03-13T09:54:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (ALDEBARAN and CLEAROCEAN MAGIC) maintained close proximity (min 331m, avg 337m) for 297 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 331m, avg 337m
Duration25/25Duration 297 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "min_distance_m": 331.30000000000001136868377216160297393798828125,
    "avg_distance_m": 336.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 297,
    "overlap_duration_s": 17821,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-03-13T04:57:56+00:00",
        "end": "2026-03-13T09:54:57+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 331m, avg 337m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 297 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALDEBARAN and CLEAROCEAN MAGIC) maintained close proximity (min 331m, avg 337m) for 297 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 04:02 UTC 90/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 142 meters
  • Duration: 6h 24m
  • Period: 2026-03-13T04:58:27+00:00 to 2026-03-13T11:22:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 384 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 142m
Duration25/25Duration 384 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.900000000000005684341886080801486968994140625,
    "avg_distance_m": 141.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 384,
    "overlap_duration_s": 23039,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T04:58:27+00:00",
        "end": "2026-03-13T11:22:26+00:00"
    },
    "points_count": {
        "vessel_a": 65,
        "vessel_b": 65
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 142m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 384 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 142m) for 384 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 04:00 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 30m
  • Data Points: 66 AIS positions
  • Period: 2026-03-13T04:52:24+00:00 to 2026-03-13T11:22:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-03-13T04:52:24+00:00",
        "lat": 34.7081050000000033151081879623234272003173828125,
        "lon": 33.31994329999999848723746254108846187591552734375
    },
    "last_point": {
        "ts": "2026-03-13T11:22:26+00:00",
        "lat": 34.70810000000000172803993336856365203857421875,
        "lon": 33.31995669999999876154106459580361843109130859375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 04:00 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 11 meters
  • Data Points: 66 AIS positions
  • Centroid: 34.7081, 33.3199
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 11.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 390,
    "points": 66,
    "centroid": {
        "lat": 34.70811219545455372781361802481114864349365234375,
        "lon": 33.3199284272727282996129360981285572052001953125
    },
    "bbox": {
        "min_lat": 34.70802669999999778838173369877040386199951171875,
        "min_lon": 33.31982500000000158024704433046281337738037109375,
        "max_lat": 34.708183300000001736407284624874591827392578125,
        "max_lon": 33.32001170000000200843714992515742778778076171875
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 03:53 UTC 87/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 132 meters
  • Average Distance: 145 meters
  • Duration: 6h 2m
  • Period: 2026-03-13T03:53:16+00:00 to 2026-03-13T09:55:25+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 87/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 145m) for 362 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 145m
Duration25/25Duration 362 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±20m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 131.900000000000005684341886080801486968994140625,
    "avg_distance_m": 145.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 20,
    "duration_minutes": 362.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 21729,
    "speed_a_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_a_std": 0.309999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.200000000000000011102230246251565404236316680908203125,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-03-13T03:53:16+00:00",
        "end": "2026-03-13T09:55:25+00:00"
    },
    "points_count": {
        "vessel_a": 78,
        "vessel_b": 78
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 87,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 145m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 362 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b120m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 132m, avg 145m) for 362 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 03:00 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 33m
  • Data Points: 89 AIS positions
  • Period: 2026-03-13T03:21:51+00:00 to 2026-03-13T09:55:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 393.6000000000000227373675443232059478759765625,
    "points_in_zone": 89,
    "first_point": {
        "ts": "2026-03-13T03:21:51+00:00",
        "lat": 34.71115830000000102018020697869360446929931640625,
        "lon": 33.3229017000000027337591745890676975250244140625
    },
    "last_point": {
        "ts": "2026-03-13T09:55:25+00:00",
        "lat": 34.70811830000000242080204770900309085845947265625,
        "lon": 33.31994999999999862438926356844604015350341796875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 03:00 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 770 meters
  • Data Points: 89 AIS positions
  • Centroid: 34.7079, 33.3204
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 769.799999999999954525264911353588104248046875,
    "duration_minutes": 393.6000000000000227373675443232059478759765625,
    "points": 89,
    "centroid": {
        "lat": 34.7078709910112337411192129366099834442138671875,
        "lon": 33.3203606505617955235720728524029254913330078125
    },
    "bbox": {
        "min_lat": 34.7034900000000021691448637284338474273681640625,
        "min_lon": 33.31664330000000262543835560791194438934326171875,
        "max_lat": 34.71115830000000102018020697869360446929931640625,
        "max_lon": 33.32863499999999845613274374045431613922119140625
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 02:06 UTC 72/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9723007 (ALDEBARAN) Bahamas
  • Minimum Distance: 73 meters
  • Average Distance: 121 meters
  • Duration: 1h 24m
  • Period: 2026-03-13T02:06:50+00:00 to 2026-03-13T03:31:46+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 72/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 73m, avg 121m) for 85 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 121m
Duration15/25Duration 85 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency5/15Distance variance ±124m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 212108

Click image to view full size

Searched: 2026-03-13T08:30:07.032237+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "min_distance_m": 73.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 120.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 124.2999999999999971578290569595992565155029296875,
    "duration_minutes": 84.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 5096,
    "speed_a_avg": 0.179999999999999993338661852249060757458209991455078125,
    "speed_a_std": 0.4899999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.179999999999999993338661852249060757458209991455078125,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-03-13T02:06:50+00:00",
        "end": "2026-03-13T03:31:46+00:00"
    },
    "points_count": {
        "vessel_a": 20,
        "vessel_b": 20
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 72,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 121m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 85 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 5,
                "max": 15,
                "detail": "Distance variance \u00b1124m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 73m, avg 121m) for 85 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70989519999999828314685146324336528778076171875,
            "lon": 33.3230573000000021011146600358188152313232421875
        },
        "time_window": {
            "start_ts": "2026-03-13T02:06:50+00:00",
            "end_ts": "2026-03-13T03:31:46+00:00"
        },
        "searched_at": "2026-03-13T08:30:07.032237+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212108_thumbnail_20260313083011.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212108_thumbnail_20260313083011.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 02:03 UTC 60/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia
  • Minimum Distance: 303 meters
  • Average Distance: 310 meters
  • Duration: 39 minutes
  • Period: 2026-03-13T02:03:51+00:00 to 2026-03-13T02:42:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 303m, avg 310m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 212243

Click image to view full size

Searched: 2026-03-13T08:45:03.889567+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 303,
    "avg_distance_m": 309.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 39,
    "overlap_duration_s": 2339,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T02:03:51+00:00",
        "end": "2026-03-13T02:42:50+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 303m, avg 310m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.7091577999999998382918420247733592987060546875,
            "lon": 33.32123109999999854835550650022923946380615234375
        },
        "time_window": {
            "start_ts": "2026-03-13T02:03:51+00:00",
            "end_ts": "2026-03-13T02:42:50+00:00"
        },
        "searched_at": "2026-03-13T08:45:03.889567+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212243_thumbnail_20260313084508.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212243_thumbnail_20260313084508.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 02:03 UTC 65/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 449 meters
  • Average Distance: 454 meters
  • Duration: 1h 9m
  • Period: 2026-03-13T02:03:51+00:00 to 2026-03-13T03:12:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 449m, avg 454m) for 69 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 449m, avg 454m
Duration15/25Duration 69 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 212244

Click image to view full size

Searched: 2026-03-13T08:45:09.941055+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 448.8999999999999772626324556767940521240234375,
    "avg_distance_m": 454.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 69,
    "overlap_duration_s": 4139,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.25,
    "speed_b_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.25,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-03-13T02:03:51+00:00",
        "end": "2026-03-13T03:12:50+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 449m, avg 454m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 69 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 449m, avg 454m) for 69 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.708529900000002044180291704833507537841796875,
            "lon": 33.320910499999996545739122666418552398681640625
        },
        "time_window": {
            "start_ts": "2026-03-13T02:03:51+00:00",
            "end_ts": "2026-03-13T03:12:50+00:00"
        },
        "searched_at": "2026-03-13T08:45:09.941055+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212244_thumbnail_20260313084513.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212244_thumbnail_20260313084513.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 02:00 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 30m
  • Data Points: 89 AIS positions
  • Period: 2026-03-13T02:51:51+00:00 to 2026-03-13T09:22:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 390.6000000000000227373675443232059478759765625,
    "points_in_zone": 89,
    "first_point": {
        "ts": "2026-03-13T02:51:51+00:00",
        "lat": 34.71013169999999803394530317746102809906005859375,
        "lon": 33.32242169999999958918124320916831493377685546875
    },
    "last_point": {
        "ts": "2026-03-13T09:22:24+00:00",
        "lat": 34.70809669999999869105522520840167999267578125,
        "lon": 33.319940000000002555680111981928348541259765625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 02:00 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 751 meters
  • Data Points: 89 AIS positions
  • Centroid: 34.7080, 33.3205
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 751.3999999999999772626324556767940521240234375,
    "duration_minutes": 390.6000000000000227373675443232059478759765625,
    "points": 89,
    "centroid": {
        "lat": 34.70800730337078476850365404970943927764892578125,
        "lon": 33.32052909662920825439869076944887638092041015625
    },
    "bbox": {
        "min_lat": 34.7034900000000021691448637284338474273681640625,
        "min_lon": 33.31664330000000262543835560791194438934326171875,
        "max_lat": 34.71115830000000102018020697869360446929931640625,
        "max_lon": 33.32863499999999845613274374045431613922119140625
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 13, 2026 01:20 UTC 82/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9723007 (ALDEBARAN) Bahamas
  • Minimum Distance: 73 meters
  • Average Distance: 106 meters
  • Duration: 2h 11m
  • Period: 2026-03-13T01:20:13+00:00 to 2026-03-13T03:31:46+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 82/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 73m, avg 106m) for 132 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 106m
Duration25/25Duration 132 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency5/15Distance variance ±101m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "min_distance_m": 73.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 106.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 100.900000000000005684341886080801486968994140625,
    "duration_minutes": 131.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 7893,
    "speed_a_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_a_std": 0.39000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-03-13T01:20:13+00:00",
        "end": "2026-03-13T03:31:46+00:00"
    },
    "points_count": {
        "vessel_a": 31,
        "vessel_b": 31
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 82,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 106m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 132 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 5,
                "max": 15,
                "detail": "Distance variance \u00b1101m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 73m, avg 106m) for 132 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 01:05 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 35m
  • Data Points: 99 AIS positions
  • Period: 2026-03-13T01:53:18+00:00 to 2026-03-13T08:28:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 395.1000000000000227373675443232059478759765625,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-03-13T01:53:18+00:00",
        "lat": 34.71018000000000114368958747945725917816162109375,
        "lon": 33.3224349999999986948751029558479785919189453125
    },
    "last_point": {
        "ts": "2026-03-13T08:28:22+00:00",
        "lat": 34.70810999999999779674908495508134365081787109375,
        "lon": 33.31994830000000007430571713484823703765869140625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 01:05 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 713 meters
  • Data Points: 99 AIS positions
  • Centroid: 34.7083, 33.3209
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 713.200000000000045474735088646411895751953125,
    "duration_minutes": 395.1000000000000227373675443232059478759765625,
    "points": 99,
    "centroid": {
        "lat": 34.70834666666666379342132131569087505340576171875,
        "lon": 33.320871545454536999386618845164775848388671875
    },
    "bbox": {
        "min_lat": 34.7034900000000021691448637284338474273681640625,
        "min_lon": 33.31664330000000262543835560791194438934326171875,
        "max_lat": 34.71115830000000102018020697869360446929931640625,
        "max_lon": 33.32863499999999845613274374045431613922119140625
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 13, 2026 01:05 UTC 75/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia
  • Minimum Distance: 303 meters
  • Average Distance: 310 meters
  • Duration: 1h 37m
  • Period: 2026-03-13T01:05:11+00:00 to 2026-03-13T02:42:50+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 98 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 303m, avg 310m
Duration20/25Duration 98 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T07:45:12.168003+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 303,
    "avg_distance_m": 309.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 97.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 5859,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T01:05:11+00:00",
        "end": "2026-03-13T02:42:50+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 303m, avg 310m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 98 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 98 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70915959999999955698513076640665531158447265625,
            "lon": 33.321225499999997055056155659258365631103515625
        },
        "time_window": {
            "start_ts": "2026-03-13T01:05:11+00:00",
            "end_ts": "2026-03-13T02:42:50+00:00"
        },
        "searched_at": "2026-03-13T07:45:12.168003+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 13, 2026 01:05 UTC 75/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 449 meters
  • Average Distance: 454 meters
  • Duration: 2h 7m
  • Period: 2026-03-13T01:05:11+00:00 to 2026-03-13T03:12:50+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 449m, avg 454m) for 128 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 449m, avg 454m
Duration25/25Duration 128 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T08:00:02.215947+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 448.8999999999999772626324556767940521240234375,
    "avg_distance_m": 453.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 127.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 7659,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2800000000000000266453525910037569701671600341796875,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T01:05:11+00:00",
        "end": "2026-03-13T03:12:50+00:00"
    },
    "points_count": {
        "vessel_a": 33,
        "vessel_b": 33
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 449m, avg 454m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 128 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 449m, avg 454m) for 128 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.708529400000003306558937765657901763916015625,
            "lon": 33.32090960000000023910615709610283374786376953125
        },
        "time_window": {
            "start_ts": "2026-03-13T01:05:11+00:00",
            "end_ts": "2026-03-13T03:12:50+00:00"
        },
        "searched_at": "2026-03-13T08:00:02.215947+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 13, 2026 00:05 UTC 75/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9723007 (ALDEBARAN) Bahamas
  • Minimum Distance: 75 meters
  • Average Distance: 78 meters
  • Duration: 44 minutes
  • Period: 2026-03-13T00:05:17+00:00 to 2026-03-13T00:50:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 75m, avg 78m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 75m, avg 78m
Duration5/25Duration 45 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T06:45:12.389362+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "min_distance_m": 74.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 78.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 44.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2695,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-03-13T00:05:17+00:00",
        "end": "2026-03-13T00:50:12+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 75m, avg 78m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 45 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 75m, avg 78m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70993589999999784367901156656444072723388671875,
            "lon": 33.322765599999996766200638376176357269287109375
        },
        "time_window": {
            "start_ts": "2026-03-13T00:05:17+00:00",
            "end_ts": "2026-03-13T00:50:12+00:00"
        },
        "searched_at": "2026-03-13T06:45:12.389362+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 13, 2026 00:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 35m
  • Data Points: 105 AIS positions
  • Period: 2026-03-13T00:50:12+00:00 to 2026-03-13T07:25:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 395.19999999999998863131622783839702606201171875,
    "points_in_zone": 105,
    "first_point": {
        "ts": "2026-03-13T00:50:12+00:00",
        "lat": 34.71012999999999948386175674386322498321533203125,
        "lon": 33.3224282999999985577233019284904003143310546875
    },
    "last_point": {
        "ts": "2026-03-13T07:25:26+00:00",
        "lat": 34.7081467000000003508830559439957141876220703125,
        "lon": 33.31994670000000269283191300928592681884765625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 13, 2026 00:02 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 689 meters
  • Data Points: 105 AIS positions
  • Centroid: 34.7086, 33.3211
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 688.5,
    "duration_minutes": 395.19999999999998863131622783839702606201171875,
    "points": 105,
    "centroid": {
        "lat": 34.7086038590476135823337244801223278045654296875,
        "lon": 33.321149297142852674369351007044315338134765625
    },
    "bbox": {
        "min_lat": 34.7034900000000021691448637284338474273681640625,
        "min_lon": 33.31664330000000262543835560791194438934326171875,
        "max_lat": 34.71115830000000102018020697869360446929931640625,
        "max_lon": 33.32863499999999845613274374045431613922119140625
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 00:02 UTC 80/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia
  • Minimum Distance: 303 meters
  • Average Distance: 310 meters
  • Duration: 2h 40m
  • Period: 2026-03-13T00:02:12+00:00 to 2026-03-13T02:42:50+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 161 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 303m, avg 310m
Duration25/25Duration 161 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 211884

Click image to view full size

Searched: 2026-03-13T06:45:14.758692+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 303,
    "avg_distance_m": 309.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 160.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 9638,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T00:02:12+00:00",
        "end": "2026-03-13T02:42:50+00:00"
    },
    "points_count": {
        "vessel_a": 43,
        "vessel_b": 43
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 303m, avg 310m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 161 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 161 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70917250000000109366737888194620609283447265625,
            "lon": 33.32122460000000074842319008894264698028564453125
        },
        "time_window": {
            "start_ts": "2026-03-13T00:02:12+00:00",
            "end_ts": "2026-03-13T02:42:50+00:00"
        },
        "searched_at": "2026-03-13T06:45:14.758692+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211884_thumbnail_20260313064518.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211884_thumbnail_20260313064518.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 13, 2026 00:02 UTC 75/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 448 meters
  • Average Distance: 454 meters
  • Duration: 3h 10m
  • Period: 2026-03-13T00:02:12+00:00 to 2026-03-13T03:12:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 448m, avg 454m) for 191 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 448m, avg 454m
Duration25/25Duration 191 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 211885

Click image to view full size

Searched: 2026-03-13T07:00:01.357503+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 447.8999999999999772626324556767940521240234375,
    "avg_distance_m": 454.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 190.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 11438,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_std": 0.2200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2800000000000000266453525910037569701671600341796875,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T00:02:12+00:00",
        "end": "2026-03-13T03:12:50+00:00"
    },
    "points_count": {
        "vessel_a": 50,
        "vessel_b": 50
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 448m, avg 454m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 191 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 448m, avg 454m) for 191 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70853290000000157533577294088900089263916015625,
            "lon": 33.320912300000003369859769009053707122802734375
        },
        "time_window": {
            "start_ts": "2026-03-13T00:02:12+00:00",
            "end_ts": "2026-03-13T03:12:50+00:00"
        },
        "searched_at": "2026-03-13T07:00:01.357503+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211885_thumbnail_20260313070005.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211885_thumbnail_20260313070005.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 12, 2026 23:44 UTC 85/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9723007 (ALDEBARAN) Bahamas
  • Minimum Distance: 71 meters
  • Average Distance: 77 meters
  • Duration: 1h 6m
  • Period: 2026-03-12T23:44:12+00:00 to 2026-03-13T00:50:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 71m, avg 77m) for 66 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 71m, avg 77m
Duration15/25Duration 66 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "min_distance_m": 71.400000000000005684341886080801486968994140625,
    "avg_distance_m": 77.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 66,
    "overlap_duration_s": 3960,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-03-12T23:44:12+00:00",
        "end": "2026-03-13T00:50:12+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 71m, avg 77m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 66 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 71m, avg 77m) for 66 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 12, 2026 23:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 38m
  • Data Points: 105 AIS positions
  • Period: 2026-03-12T23:50:12+00:00 to 2026-03-13T06:28:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 398.19999999999998863131622783839702606201171875,
    "points_in_zone": 105,
    "first_point": {
        "ts": "2026-03-12T23:50:12+00:00",
        "lat": 34.71008330000000086101863416843116283416748046875,
        "lon": 33.32243170000000276331775239668786525726318359375
    },
    "last_point": {
        "ts": "2026-03-13T06:28:23+00:00",
        "lat": 34.7080832999999984167516231536865234375,
        "lon": 33.31986830000000310292307403869926929473876953125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 12, 2026 23:02 UTC 75.0% ▼
  • Duration: 6h 38m
  • Radius: 658 meters
  • Data Points: 105 AIS positions
  • Centroid: 34.7089, 33.3215
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 657.700000000000045474735088646411895751953125,
    "duration_minutes": 398.19999999999998863131622783839702606201171875,
    "points": 105,
    "centroid": {
        "lat": 34.7089181590476272276646341197192668914794921875,
        "lon": 33.32153145904761259998849709518253803253173828125
    },
    "bbox": {
        "min_lat": 34.7034900000000021691448637284338474273681640625,
        "min_lon": 33.31664330000000262543835560791194438934326171875,
        "max_lat": 34.71115830000000102018020697869360446929931640625,
        "max_lon": 33.32863499999999845613274374045431613922119140625
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Monitoring Zone
Mar 12, 2026 23:02 UTC 80/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia
  • Minimum Distance: 303 meters
  • Average Distance: 310 meters
  • Duration: 3h 40m
  • Period: 2026-03-12T23:02:16+00:00 to 2026-03-13T02:42:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 221 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 303m, avg 310m
Duration25/25Duration 221 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T05:45:09.396024+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 303,
    "avg_distance_m": 310.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3,
    "duration_minutes": 220.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 13234,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-12T23:02:16+00:00",
        "end": "2026-03-13T02:42:50+00:00"
    },
    "points_count": {
        "vessel_a": 56,
        "vessel_b": 56
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 303m, avg 310m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 221 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 303m, avg 310m) for 221 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7091697999999979629137669689953327178955078125,
            "lon": 33.32122389999999967358235153369605541229248046875
        },
        "time_window": {
            "start_ts": "2026-03-12T23:02:16+00:00",
            "end_ts": "2026-03-13T02:42:50+00:00"
        },
        "searched_at": "2026-03-13T05:45:09.396024+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 12, 2026 23:02 UTC 75/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 448 meters
  • Average Distance: 454 meters
  • Duration: 4h 10m
  • Period: 2026-03-12T23:02:16+00:00 to 2026-03-13T03:12:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 448m, avg 454m) for 251 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 448m, avg 454m
Duration25/25Duration 251 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 211691

Click image to view full size

Searched: 2026-03-13T05:45:11.761643+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 447.80000000000001136868377216160297393798828125,
    "avg_distance_m": 454.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 250.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 15034,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.289999999999999980015985556747182272374629974365234375,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.289999999999999980015985556747182272374629974365234375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-12T23:02:16+00:00",
        "end": "2026-03-13T03:12:50+00:00"
    },
    "points_count": {
        "vessel_a": 63,
        "vessel_b": 63
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 448m, avg 454m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 251 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 448m, avg 454m) for 251 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70853050000000195041138795204460620880126953125,
            "lon": 33.32091319999999967649273457936942577362060546875
        },
        "time_window": {
            "start_ts": "2026-03-12T23:02:16+00:00",
            "end_ts": "2026-03-13T03:12:50+00:00"
        },
        "searched_at": "2026-03-13T05:45:11.761643+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211691_thumbnail_20260313054517.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211691_thumbnail_20260313054517.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Monitoring Zone
Mar 12, 2026 22:14 UTC 85/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9723007 (ALDEBARAN) Bahamas
  • Minimum Distance: 74 meters
  • Average Distance: 77 meters
  • Duration: 1h 12m
  • Period: 2026-03-12T22:14:11+00:00 to 2026-03-12T23:26:11+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 74m, avg 77m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 74m, avg 77m
Duration15/25Duration 72 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "min_distance_m": 74.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 77.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 72,
    "overlap_duration_s": 4320,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-03-12T22:14:11+00:00",
        "end": "2026-03-12T23:26:11+00:00"
    },
    "points_count": {
        "vessel_a": 18,
        "vessel_b": 18
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 74m, avg 77m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ALDEBARAN) maintained close proximity (min 74m, avg 77m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Mar 12, 2026 22:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 6h 32m
  • Data Points: 103 AIS positions
  • Period: 2026-03-12T22:56:18+00:00 to 2026-03-13T05:28:27+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 392.1000000000000227373675443232059478759765625,
    "points_in_zone": 103,
    "first_point": {
        "ts": "2026-03-12T22:56:18+00:00",
        "lat": 34.71012999999999948386175674386322498321533203125,
        "lon": 33.322443300000003318928065709769725799560546875
    },
    "last_point": {
        "ts": "2026-03-13T05:28:27+00:00",
        "lat": 34.70808670000000262234607362188398838043212890625,
        "lon": 33.3199417000000011057636584155261516571044921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Monitoring Zone
Mar 12, 2026 22:02 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 640 meters
  • Data Points: 103 AIS positions
  • Centroid: 34.7092, 33.3219
  • Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 640.200000000000045474735088646411895751953125,
    "duration_minutes": 392.1000000000000227373675443232059478759765625,
    "points": 103,
    "centroid": {
        "lat": 34.70916818737864417698801844380795955657958984375,
        "lon": 33.321859804854369713211781345307826995849609375
    },
    "bbox": {
        "min_lat": 34.7034900000000021691448637284338474273681640625,
        "min_lon": 33.31664330000000262543835560791194438934326171875,
        "max_lat": 34.71115830000000102018020697869360446929931640625,
        "max_lon": 33.32863499999999845613274374045431613922119140625
    },
    "zone_id": "discovered_037"
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 12, 2026 22:02 UTC 85/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia
  • Minimum Distance: 298 meters
  • Average Distance: 309 meters
  • Duration: 4h 40m
  • Period: 2026-03-12T22:02:12+00:00 to 2026-03-13T02:42:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 298m, avg 309m) for 281 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness15/25Min distance 298m, avg 309m
Duration25/25Duration 281 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 211508

Click image to view full size

Searched: 2026-03-13T04:45:07.449326+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 298,
    "avg_distance_m": 309.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 3.5,
    "duration_minutes": 280.6000000000000227373675443232059478759765625,
    "overlap_duration_s": 16838,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-12T22:02:12+00:00",
        "end": "2026-03-13T02:42:50+00:00"
    },
    "points_count": {
        "vessel_a": 69,
        "vessel_b": 69
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 298m, avg 309m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 281 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and HISTRIA ATLAS) maintained close proximity (min 298m, avg 309m) for 281 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70917109999999894398570177145302295684814453125,
            "lon": 33.3212242999999972425939631648361682891845703125
        },
        "time_window": {
            "start_ts": "2026-03-12T22:02:12+00:00",
            "end_ts": "2026-03-13T02:42:50+00:00"
        },
        "searched_at": "2026-03-13T04:45:07.449326+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211508_thumbnail_20260313044512.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211508_thumbnail_20260313044512.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Monitoring Zone
Mar 12, 2026 22:02 UTC 75/100 ▼
Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia
Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA
  • Minimum Distance: 448 meters
  • Average Distance: 454 meters
  • Duration: 5h 10m
  • Period: 2026-03-12T22:02:12+00:00 to 2026-03-13T03:12:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 448m, avg 454m) for 311 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 448m, avg 454m
Duration25/25Duration 311 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c
SAR satellite preview for event 211509

Click image to view full size

Searched: 2026-03-13T04:45:13.151731+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636018900,
        "imo": 9849382,
        "name": "CLEAROCEAN MAGIC",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 447.80000000000001136868377216160297393798828125,
    "avg_distance_m": 454.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 310.6000000000000227373675443232059478759765625,
    "overlap_duration_s": 18638,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.2600000000000000088817841970012523233890533447265625,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2600000000000000088817841970012523233890533447265625,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-12T22:02:12+00:00",
        "end": "2026-03-13T03:12:50+00:00"
    },
    "points_count": {
        "vessel_a": 76,
        "vessel_b": 76
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 448m, avg 454m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 311 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CLEAROCEAN MAGIC and ELKA DELOS) maintained close proximity (min 448m, avg 454m) for 311 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70852949999999736974132247269153594970703125,
            "lon": 33.32091290000000327609086525626480579376220703125
        },
        "time_window": {
            "start_ts": "2026-03-12T22:02:12+00:00",
            "end_ts": "2026-03-13T03:12:50+00:00"
        },
        "searched_at": "2026-03-13T04:45:13.151731+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211509_thumbnail_20260313044516.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211509_thumbnail_20260313044516.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18

Data Source

Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.

Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.