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 discovered_025
Jul 26, 2026 17:43 UTC 80.0% ▼
  • Zone: discovered_025
  • Duration: 3h 51m
  • Data Points: 8 AIS positions
  • Period: 2026-07-26T17:43:02+00:00 to 2026-07-26T21:34:36+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_025",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 231.599999999999994315658113919198513031005859375,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-26T17:43:02+00:00",
        "lat": 31.49956999999999851524989935569465160369873046875,
        "lon": 32.3251350000000030604496714659035205841064453125
    },
    "last_point": {
        "ts": "2026-07-26T21:34:36+00:00",
        "lat": 32.010030000000000427462509833276271820068359375,
        "lon": 31.6038199999999989131538313813507556915283203125
    }
}
Methodology: 2026.01.18
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

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Aug 23 16:42 31.7171 35.9994 0.0 kn 126.7° Central Mediterranean Surveillance Zone
Aug 23 16:40 31.7171 35.9994 0.0 kn 65.8° Central Mediterranean Surveillance Zone
Aug 23 16:36 31.7171 35.9994 0.0 kn 148.6° Central Mediterranean Surveillance Zone
Aug 23 16:33 31.7171 35.9994 0.0 kn 199.3° Central Mediterranean Surveillance Zone
Jul 26 21:34 32.0100 31.6038 12.6 kn 309.4° discovered_025
Jul 26 21:08 31.9520 31.6854 12.5 kn 313.9° discovered_025
Jul 26 20:53 31.9141 31.7276 12.6 kn 318.0° discovered_025
Jul 26 20:50 31.9044 31.7377 12.7 kn 318.5° discovered_025
Jul 26 20:48 31.9009 31.7414 12.6 kn 318.1° discovered_025
Jul 26 20:47 31.8983 31.7442 12.5 kn 318.6° discovered_025
Jul 26 17:44 31.5014 32.3218 12.3 kn 302.5° discovered_025
Jul 26 17:43 31.4996 32.3251 12.4 kn 304.0° discovered_025
Jul 26 17:38 31.4912 32.3419 12.4 kn 297.2° Western Black Sea Surveillance Zone
Jul 26 17:37 31.4895 32.3456 12.5 kn 297.9° Western Black Sea Surveillance Zone
Jul 26 17:34 31.4858 32.3537 12.2 kn 297.7° Western Black Sea Surveillance Zone
Jul 26 17:33 31.4842 32.3573 12.2 kn 297.9° Western Black Sea Surveillance Zone
Jul 26 17:29 31.4779 32.3712 11.9 kn 297.5° Western Black Sea Surveillance Zone
Jul 26 17:28 31.4747 32.3772 12.0 kn 307.3° Western Black Sea Surveillance Zone
Jul 26 17:25 31.4684 32.3846 11.9 kn 317.9° Western Black Sea Surveillance Zone
Jul 26 17:23 31.4644 32.3889 11.7 kn 316.8° Western Black Sea Surveillance Zone

Showing 20 of 23 recent positions.

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.