GAZ HORIZON

IMO 9572563

Vessel information

Vessel Name GAZ HORIZON
IMO Number 9572563
MMSI 538007915
Vessel Type Tanker
Flag 🏳️ Marshall Is
Call Sign V7MY8
Length 119 m
Beam 18 m

Detected Events (100)

Zone Dwell Southern Black Sea Sanctioned Vessel Zone
Jun 5, 2026 18:03 UTC 80.0%
  • Zone: Southern Black Sea Sanctioned Vessel Zone
  • Duration: 1h 24m
  • Data Points: 49 AIS positions
  • Period: 2026-06-05T18:03:50+00:00 to 2026-06-05T19:28:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_035",
    "zone_name": "Southern Black Sea Sanctioned Vessel Zone",
    "dwell_minutes": 84.2000000000000028421709430404007434844970703125,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-06-05T18:03:50+00:00",
        "lat": 34.38871499999999770125214126892387866973876953125,
        "lon": 33.8819883000000032780008041299879550933837890625
    },
    "last_point": {
        "ts": "2026-06-05T19:28:00+00:00",
        "lat": 34.2292367000000012922100722789764404296875,
        "lon": 33.56909170000000131039996631443500518798828125
    }
}
Methodology: 2026.01.18
Zone Dwell Southern Black Sea Sanctioned Vessel Zone
Jun 5, 2026 17:29 UTC 80.0%
  • Zone: Southern Black Sea Sanctioned Vessel Zone
  • Duration: 1h 58m
  • Data Points: 63 AIS positions
  • Period: 2026-06-05T17:29:19+00:00 to 2026-06-05T19:28:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_035",
    "zone_name": "Southern Black Sea Sanctioned Vessel Zone",
    "dwell_minutes": 118.7000000000000028421709430404007434844970703125,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-06-05T17:29:19+00:00",
        "lat": 34.43327670000000040317900129593908786773681640625,
        "lon": 34.022518300000001545413397252559661865234375
    },
    "last_point": {
        "ts": "2026-06-05T19:28:00+00:00",
        "lat": 34.2292367000000012922100722789764404296875,
        "lon": 33.56909170000000131039996631443500518798828125
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 16:10 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: BOBCAT (BOBCAT) Oman
  • Minimum Distance: 1 meters
  • Average Distance: 2 meters
  • Duration: 32 minutes
  • Period: 2026-06-05T16:10:49+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and BOBCAT) maintained close proximity (min 1m, avg 2m) for 33 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 2m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T23:00:15.352061+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 461000234,
        "imo": 9422457,
        "name": "BOBCAT",
        "flag": "Oman"
    },
    "min_distance_m": 1,
    "avg_distance_m": 2.399999999999999911182158029987476766109466552734375,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 32.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 1972,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-06-05T16:10:49+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 2m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and BOBCAT) maintained close proximity (min 1m, avg 2m) for 33 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717111700000000240606823354028165340423583984375,
            "lon": 35.99934900000000226327756536193192005157470703125
        },
        "time_window": {
            "start_ts": "2026-06-05T16:10:49+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T23:00:15.352061+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_682764_thumbnail_20260605230019.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_682764_thumbnail_20260605230019.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 16:10 UTC 62/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9310305 (SAMBA) Marshall Is
  • Minimum Distance: 2 meters
  • Average Distance: 68 meters
  • Duration: 32 minutes
  • Period: 2026-06-05T16:10:49+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 62/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and SAMBA) maintained close proximity (min 2m, avg 68m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 2m, avg 68m
Duration5/25Duration 33 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency5/15Distance variance ±143m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T23:00:20.228016+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011921,
        "imo": 9310305,
        "name": "SAMBA",
        "flag": "Marshall Is"
    },
    "min_distance_m": 2.100000000000000088817841970012523233890533447265625,
    "avg_distance_m": 67.5,
    "distance_consistency_m": 142.80000000000001136868377216160297393798828125,
    "duration_minutes": 32.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 1972,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.429999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-06-05T16:10:49+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 62,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 2m, avg 68m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 5,
                "max": 15,
                "detail": "Distance variance \u00b1143m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and SAMBA) maintained close proximity (min 2m, avg 68m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.716971199999999697638486395590007305145263671875,
            "lon": 35.9996512999999964677044772543013095855712890625
        },
        "time_window": {
            "start_ts": "2026-06-05T16:10:49+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T23:00:20.228016+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_682765_thumbnail_20260605230024.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_682765_thumbnail_20260605230024.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 16:04 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9956939 (TRANS FJORD) Panama
  • Minimum Distance: 1 meters
  • Average Distance: 3 meters
  • Duration: 39 minutes
  • Period: 2026-06-05T16:04:23+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and TRANS FJORD) maintained close proximity (min 1m, avg 3m) for 39 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 3m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T19:30:06.646874+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 352003272,
        "imo": 9956939,
        "name": "TRANS FJORD",
        "flag": "Panama"
    },
    "min_distance_m": 0.6999999999999999555910790149937383830547332763671875,
    "avg_distance_m": 3.399999999999999911182158029987476766109466552734375,
    "distance_consistency_m": 2,
    "duration_minutes": 39.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2358,
    "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": "2026-06-05T16:04:23+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 3m"
            },
            "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 \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and TRANS FJORD) maintained close proximity (min 1m, avg 3m) for 39 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717106300000001084526957129128277301788330078125,
            "lon": 35.999355100000002494198270142078399658203125
        },
        "time_window": {
            "start_ts": "2026-06-05T16:04:23+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T19:30:06.646874+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680583_thumbnail_20260605193010.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680583_thumbnail_20260605193010.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 16:04 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9326811 (PERSEAS) LIBERIA
  • Minimum Distance: 4 meters
  • Average Distance: 6 meters
  • Duration: 39 minutes
  • Period: 2026-06-05T16:04:23+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and PERSEAS) maintained close proximity (min 4m, avg 6m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 4m, avg 6m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T23:15:11.451497+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636026393,
        "imo": 9326811,
        "name": "PERSEAS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 3.5,
    "avg_distance_m": 5.79999999999999982236431605997495353221893310546875,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 39.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2358,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T16:04:23+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 4m, avg 6m"
            },
            "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 \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and PERSEAS) maintained close proximity (min 4m, avg 6m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71712670000000144909790833480656147003173828125,
            "lon": 35.99932969999999698984538554213941097259521484375
        },
        "time_window": {
            "start_ts": "2026-06-05T16:04:23+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T23:15:11.451497+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_683003_thumbnail_20260605231514.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_683003_thumbnail_20260605231514.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 16:04 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9335915 (BLUE ROSE) MARSHALL ISLANDS
  • Minimum Distance: 1 meters
  • Average Distance: 4 meters
  • Duration: 39 minutes
  • Period: 2026-06-05T16:04:23+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and BLUE ROSE) maintained close proximity (min 1m, avg 4m) for 39 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 4m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T23:15:16.003186+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538002561,
        "imo": 9335915,
        "name": "BLUE ROSE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 0.6999999999999999555910790149937383830547332763671875,
    "avg_distance_m": 4.29999999999999982236431605997495353221893310546875,
    "distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 39.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2358,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T16:04:23+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 4m"
            },
            "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 \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and BLUE ROSE) maintained close proximity (min 1m, avg 4m) for 39 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71711859999999916226443019695580005645751953125,
            "lon": 35.99935289999999810106601216830313205718994140625
        },
        "time_window": {
            "start_ts": "2026-06-05T16:04:23+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T23:15:16.003186+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_683004_thumbnail_20260605231519.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_683004_thumbnail_20260605231519.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 16:03 UTC 68/100
Vessel A: IMO 9412074 (ANDOVER) LIBERIA
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 2 meters
  • Average Distance: 88 meters
  • Duration: 43 minutes
  • Period: 2026-06-05T16:03:40+00:00 to 2026-06-05T16:47:22+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 68/100

Moderate-confidence STS candidate. Two tankers (ANDOVER and GAZ HORIZON) maintained close proximity (min 2m, avg 88m) for 44 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 2m, avg 88m
Duration5/25Duration 44 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency8/15Distance variance ±59m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T19:30:20.169268+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636025578,
        "imo": 9412074,
        "name": "ANDOVER",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 1.600000000000000088817841970012523233890533447265625,
    "avg_distance_m": 87.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 59.10000000000000142108547152020037174224853515625,
    "duration_minutes": 43.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2622,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T16:03:40+00:00",
        "end": "2026-06-05T16:47:22+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 68,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 2m, avg 88m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 44 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b159m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ANDOVER and GAZ HORIZON) maintained close proximity (min 2m, avg 88m) for 44 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.716885600000001232956492458470165729522705078125,
            "lon": 35.99932150000000063982952269725501537322998046875
        },
        "time_window": {
            "start_ts": "2026-06-05T16:03:40+00:00",
            "end_ts": "2026-06-05T16:47:22+00:00"
        },
        "searched_at": "2026-06-05T19:30:20.169268+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680586_thumbnail_20260605193023.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680586_thumbnail_20260605193023.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:59 UTC 72/100
Vessel A: IMO 9242338 (MUMBAI) PANAMA
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 0 meters
  • Average Distance: 7 meters
  • Duration: 34 minutes
  • Period: 2026-06-05T15:59:49+00:00 to 2026-06-05T16:33:56+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 72/100

Moderate-confidence STS candidate. Two tankers (MUMBAI and GAZ HORIZON) maintained close proximity (min 0m, avg 7m) for 34 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 0m, avg 7m
Duration5/25Duration 34 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±8m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T19:45:16.208078+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352002651,
        "imo": 9242338,
        "name": "MUMBAI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 0.40000000000000002220446049250313080847263336181640625,
    "avg_distance_m": 6.79999999999999982236431605997495353221893310546875,
    "distance_consistency_m": 8,
    "duration_minutes": 34.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 2047,
    "speed_a_avg": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_a_std": 0.409999999999999975575093458246556110680103302001953125,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1700000000000000122124532708767219446599483489990234375,
            "max_sog": 1
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:59:49+00:00",
        "end": "2026-06-05T16:33:56+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 72,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 7m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 34 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MUMBAI and GAZ HORIZON) maintained close proximity (min 0m, avg 7m) for 34 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717123300000000796217136667110025882720947265625,
            "lon": 35.9993448999999969828422763384878635406494140625
        },
        "time_window": {
            "start_ts": "2026-06-05T15:59:49+00:00",
            "end_ts": "2026-06-05T16:33:56+00:00"
        },
        "searched_at": "2026-06-05T19:45:16.208078+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680590_thumbnail_20260605194519.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680590_thumbnail_20260605194519.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:51 UTC 80/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9326811 (PERSEAS) LIBERIA
  • Minimum Distance: 4 meters
  • Average Distance: 10 meters
  • Duration: 51 minutes
  • Period: 2026-06-05T15:51:52+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and PERSEAS) maintained close proximity (min 4m, avg 10m) for 52 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 4m, avg 10m
Duration10/25Duration 52 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T22:00:06.673428+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636026393,
        "imo": 9326811,
        "name": "PERSEAS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 3.5,
    "avg_distance_m": 10.4000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 6.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 51.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 3109,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:51:52+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 4m, avg 10m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 52 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and PERSEAS) maintained close proximity (min 4m, avg 10m) for 52 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71710470000000015033947420306503772735595703125,
            "lon": 35.99931029999999765323082101531326770782470703125
        },
        "time_window": {
            "start_ts": "2026-06-05T15:51:52+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T22:00:06.673428+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681525_thumbnail_20260605220010.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681525_thumbnail_20260605220010.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:47 UTC 80/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9997177 (CRYSTAL ODYSSEY) SINGAPORE
  • Minimum Distance: 1 meters
  • Average Distance: 3 meters
  • Duration: 58 minutes
  • Period: 2026-06-05T15:45:21+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and CRYSTAL ODYSSEY) maintained close proximity (min 1m, avg 3m) for 58 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 3m
Duration10/25Duration 58 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T19:45:11.809807+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 563259200,
        "imo": 9997177,
        "name": "CRYSTAL ODYSSEY",
        "flag": "SINGAPORE"
    },
    "min_distance_m": 0.6999999999999999555910790149937383830547332763671875,
    "avg_distance_m": 3.29999999999999982236431605997495353221893310546875,
    "distance_consistency_m": 3.5,
    "duration_minutes": 58.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 3500,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-06-05T15:45:21+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 3m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 58 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and CRYSTAL ODYSSEY) maintained close proximity (min 1m, avg 3m) for 58 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717110600000001596754373167641460895538330078125,
            "lon": 35.99934499999999815145201864652335643768310546875
        },
        "time_window": {
            "start_ts": "2026-06-05T15:47:59+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T19:45:11.809807+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680589_thumbnail_20260605194515.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680589_thumbnail_20260605194515.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:46 UTC 80/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: BOBCAT (BOBCAT) Oman
  • Minimum Distance: 1 meters
  • Average Distance: 2 meters
  • Duration: 56 minutes
  • Period: 2026-06-05T15:47:42+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and BOBCAT) maintained close proximity (min 1m, avg 2m) for 56 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 2m
Duration10/25Duration 56 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 461000234,
        "imo": 9422457,
        "name": "BOBCAT",
        "flag": "Oman"
    },
    "min_distance_m": 1,
    "avg_distance_m": 2.20000000000000017763568394002504646778106689453125,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 56,
    "overlap_duration_s": 3359,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:47:42+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 2m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 56 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and BOBCAT) maintained close proximity (min 1m, avg 2m) for 56 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:43 UTC 75/100
Vessel A: HORAE (HORAE) Panama
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 1 meters
  • Average Distance: 9 meters
  • Duration: 44 minutes
  • Period: 2026-06-05T15:43:41+00:00 to 2026-06-05T16:27:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (HORAE and GAZ HORIZON) maintained close proximity (min 1m, avg 9m) for 44 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 9m
Duration5/25Duration 44 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±9m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T17:15:06.750694+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352179000,
        "imo": 9413004,
        "name": "HORAE",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 1.1999999999999999555910790149937383830547332763671875,
    "avg_distance_m": 8.699999999999999289457264239899814128875732421875,
    "distance_consistency_m": 8.800000000000000710542735760100185871124267578125,
    "duration_minutes": 44.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2656,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-06-05T15:43:41+00:00",
        "end": "2026-06-05T16:27:57+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 9m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 44 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b19m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HORAE and GAZ HORIZON) maintained close proximity (min 1m, avg 9m) for 44 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71713129999999836172719369642436504364013671875,
            "lon": 35.99935289999999810106601216830313205718994140625
        },
        "time_window": {
            "start_ts": "2026-06-05T15:43:41+00:00",
            "end_ts": "2026-06-05T16:27:57+00:00"
        },
        "searched_at": "2026-06-05T17:15:06.750694+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680222_thumbnail_20260605171510.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680222_thumbnail_20260605171510.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:43 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9310305 (SAMBA) Marshall Is
  • Minimum Distance: 0 meters
  • Average Distance: 96 meters
  • Duration: 1h 2m
  • Period: 2026-06-05T15:41:41+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and SAMBA) maintained close proximity (min 0m, avg 96m) for 62 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 0m, avg 96m
Duration15/25Duration 62 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency5/15Distance variance ±134m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011921,
        "imo": 9310305,
        "name": "SAMBA",
        "flag": "Marshall Is"
    },
    "min_distance_m": 0.40000000000000002220446049250313080847263336181640625,
    "avg_distance_m": 96.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 134.099999999999994315658113919198513031005859375,
    "duration_minutes": 62,
    "overlap_duration_s": 3720,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.270000000000000017763568394002504646778106689453125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-06-05T15:41:41+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 96m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 62 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 5,
                "max": 15,
                "detail": "Distance variance \u00b1134m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and SAMBA) maintained close proximity (min 0m, avg 96m) for 62 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:41 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: Denver (DENVER) SIERRA LEONE
  • Minimum Distance: 1 meters
  • Average Distance: 7 meters
  • Duration: 35 minutes
  • Period: 2026-06-05T15:41:41+00:00 to 2026-06-05T16:16:49+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and DENVER) maintained close proximity (min 1m, avg 7m) for 35 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 7m
Duration5/25Duration 35 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±8m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 667001964,
        "imo": 9382712,
        "name": "DENVER",
        "flag": "SIERRA LEONE"
    },
    "min_distance_m": 0.59999999999999997779553950749686919152736663818359375,
    "avg_distance_m": 7.4000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 8,
    "duration_minutes": 35.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 2108,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:41:41+00:00",
        "end": "2026-06-05T16:16:49+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 7m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 35 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and DENVER) maintained close proximity (min 1m, avg 7m) for 35 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:41 UTC 85/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9335915 (BLUE ROSE) MARSHALL ISLANDS
  • Minimum Distance: 1 meters
  • Average Distance: 4 meters
  • Duration: 1h 2m
  • Period: 2026-06-05T15:41:41+00:00 to 2026-06-05T16:43:41+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and BLUE ROSE) maintained close proximity (min 1m, avg 4m) for 62 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 4m
Duration15/25Duration 62 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T17:30:16.779634+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538002561,
        "imo": 9335915,
        "name": "BLUE ROSE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 0.6999999999999999555910790149937383830547332763671875,
    "avg_distance_m": 3.600000000000000088817841970012523233890533447265625,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 62,
    "overlap_duration_s": 3720,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:41:41+00:00",
        "end": "2026-06-05T16:43:41+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 4m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 62 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and BLUE ROSE) maintained close proximity (min 1m, avg 4m) for 62 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71711020000000047502908273600041866302490234375,
            "lon": 35.999363299999998844214132986962795257568359375
        },
        "time_window": {
            "start_ts": "2026-06-05T15:41:41+00:00",
            "end_ts": "2026-06-05T16:43:41+00:00"
        },
        "searched_at": "2026-06-05T17:30:16.779634+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680229_thumbnail_20260605173020.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680229_thumbnail_20260605173020.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:41 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9354521 (ANHONA) BELIZE
  • Minimum Distance: 0 meters
  • Average Distance: 3 meters
  • Duration: 32 minutes
  • Period: 2026-06-05T15:41:41+00:00 to 2026-06-05T16:13:49+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and ANHONA) maintained close proximity (min 0m, avg 3m) for 32 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 0m, avg 3m
Duration5/25Duration 32 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T21:45:15.993115+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 312171000,
        "imo": 9354521,
        "name": "ANHONA",
        "flag": "BELIZE"
    },
    "min_distance_m": 0.40000000000000002220446049250313080847263336181640625,
    "avg_distance_m": 3,
    "distance_consistency_m": 2.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 32.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 1928,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-06-05T15:41:41+00:00",
        "end": "2026-06-05T16:13:49+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 3m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 32 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and ANHONA) maintained close proximity (min 0m, avg 3m) for 32 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717107500000000896989149623550474643707275390625,
            "lon": 35.999363299999998844214132986962795257568359375
        },
        "time_window": {
            "start_ts": "2026-06-05T15:41:41+00:00",
            "end_ts": "2026-06-05T16:13:49+00:00"
        },
        "searched_at": "2026-06-05T21:45:15.993115+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681522_thumbnail_20260605214519.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681522_thumbnail_20260605214519.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:39 UTC 85/100
Vessel A: Hyperion (HYPERION) Russia
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 2 meters
  • Average Distance: 27 meters
  • Duration: 1h 4m
  • Period: 2026-06-05T15:39:12+00:00 to 2026-06-05T16:43:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (HYPERION and GAZ HORIZON) maintained close proximity (min 2m, avg 27m) for 64 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 2m, avg 27m
Duration15/25Duration 64 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±26m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T20:30:07.046275+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273278750,
        "imo": 9322968,
        "name": "HYPERION",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 1.6999999999999999555910790149937383830547332763671875,
    "avg_distance_m": 27.300000000000000710542735760100185871124267578125,
    "distance_consistency_m": 25.89999999999999857891452847979962825775146484375,
    "duration_minutes": 64.400000000000005684341886080801486968994140625,
    "overlap_duration_s": 3865,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.190000000000000002220446049250313080847263336181640625,
    "speed_b_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-06-05T15:39:12+00:00",
        "end": "2026-06-05T16:43:37+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 2m, avg 27m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 64 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b126m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HYPERION and GAZ HORIZON) maintained close proximity (min 2m, avg 27m) for 64 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717023000000001076159605872817337512969970703125,
            "lon": 35.99945269999999908350218902342021465301513671875
        },
        "time_window": {
            "start_ts": "2026-06-05T15:39:12+00:00",
            "end_ts": "2026-06-05T16:43:37+00:00"
        },
        "searched_at": "2026-06-05T20:30:07.046275+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680622_thumbnail_20260605203010.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680622_thumbnail_20260605203010.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:37 UTC 75/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9230505 (NEW LEGEND) Liberia
  • Minimum Distance: 1 meters
  • Average Distance: 4 meters
  • Duration: 38 minutes
  • Period: 2026-06-05T15:41:41+00:00 to 2026-06-05T16:19:51+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and NEW LEGEND) maintained close proximity (min 1m, avg 4m) for 38 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 4m
Duration5/25Duration 38 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017774,
        "imo": 9230505,
        "name": "NEW LEGEND",
        "flag": "Liberia"
    },
    "min_distance_m": 1.3000000000000000444089209850062616169452667236328125,
    "avg_distance_m": 3.899999999999999911182158029987476766109466552734375,
    "distance_consistency_m": 3.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 38.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2290,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:41:41+00:00",
        "end": "2026-06-05T16:19:51+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 4m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 38 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and NEW LEGEND) maintained close proximity (min 1m, avg 4m) for 38 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:37 UTC 75/100
Vessel A: IMO 9135793 (SEAGAS MAJOR) LIBERIA
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 0 meters
  • Average Distance: 4 meters
  • Duration: 37 minutes
  • Period: 2026-06-05T15:37:27+00:00 to 2026-06-05T16:15:21+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (SEAGAS MAJOR and GAZ HORIZON) maintained close proximity (min 0m, avg 4m) for 38 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 0m, avg 4m
Duration5/25Duration 38 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T16:45:20.589407+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636016188,
        "imo": 9135793,
        "name": "SEAGAS MAJOR",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 0.200000000000000011102230246251565404236316680908203125,
    "avg_distance_m": 4.4000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 37.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2274,
    "speed_a_avg": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_a_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1700000000000000122124532708767219446599483489990234375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T15:37:27+00:00",
        "end": "2026-06-05T16:15:21+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 4m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 38 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (SEAGAS MAJOR and GAZ HORIZON) maintained close proximity (min 0m, avg 4m) for 38 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71709740000000010695657692849636077880859375,
            "lon": 35.99935239999999936344465822912752628326416015625
        },
        "time_window": {
            "start_ts": "2026-06-05T15:37:27+00:00",
            "end_ts": "2026-06-05T16:15:21+00:00"
        },
        "searched_at": "2026-06-05T16:45:20.589407+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680215_thumbnail_20260605164524.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680215_thumbnail_20260605164524.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:37 UTC 77/100
Vessel A: IMO 9328144 (AHINOS) Liberia
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 100 meters
  • Average Distance: 138 meters
  • Duration: 51 minutes
  • Period: 2026-06-05T15:37:10+00:00 to 2026-06-05T16:28:11+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 77/100

Moderate-confidence STS candidate. Two tankers (AHINOS and GAZ HORIZON) maintained close proximity (min 100m, avg 138m) for 51 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 100m, avg 138m
Duration10/25Duration 51 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency12/15Distance variance ±48m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T19:30:01.225482+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636024537,
        "imo": 9328144,
        "name": "AHINOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 99.900000000000005684341886080801486968994140625,
    "avg_distance_m": 138.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 47.5,
    "duration_minutes": 51,
    "overlap_duration_s": 3061,
    "speed_a_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_a_std": 0.2600000000000000088817841970012523233890533447265625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-06-05T15:37:10+00:00",
        "end": "2026-06-05T16:28:11+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 100m, avg 138m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 51 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b148m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AHINOS and GAZ HORIZON) maintained close proximity (min 100m, avg 138m) for 51 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.717471499999998485463947872631251811981201171875,
            "lon": 35.99903520000000156642272486351430416107177734375
        },
        "time_window": {
            "start_ts": "2026-06-05T15:37:10+00:00",
            "end_ts": "2026-06-05T16:28:11+00:00"
        },
        "searched_at": "2026-06-05T19:30:01.225482+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680582_thumbnail_20260605193005.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_680582_thumbnail_20260605193005.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jun 5, 2026 15:35 UTC 80.0%
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 1h 11m
  • Data Points: 17 AIS positions
  • Period: 2026-06-05T15:35:45+00:00 to 2026-06-05T16:47:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 71.2000000000000028421709430404007434844970703125,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-06-05T15:35:45+00:00",
        "lat": 31.717093299999998379234966705553233623504638671875,
        "lon": 35.99934669999999670153556508012115955352783203125
    },
    "last_point": {
        "ts": "2026-06-05T16:47:00+00:00",
        "lat": 31.716951699999999192414179560728371143341064453125,
        "lon": 35.9995066999999977497282088734209537506103515625
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jun 5, 2026 14:08 UTC 90/100
Vessel A: IMO 9611541 (THALIA) Liberia
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 0 meters
  • Average Distance: 1 meters
  • Duration: 1h 40m
  • Period: 2026-06-05T14:08:05+00:00 to 2026-06-05T15:48:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (THALIA and GAZ HORIZON) maintained close proximity (min 0m, avg 1m) for 100 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 0m, avg 1m
Duration20/25Duration 100 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-06-05T16:15:04.565440+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015372,
        "imo": 9611541,
        "name": "THALIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 0.200000000000000011102230246251565404236316680908203125,
    "avg_distance_m": 1.1999999999999999555910790149937383830547332763671875,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 100.5,
    "overlap_duration_s": 6029,
    "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": "2026-06-05T14:08:05+00:00",
        "end": "2026-06-05T15:48:34+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 1m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 100 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (THALIA and GAZ HORIZON) maintained close proximity (min 0m, avg 1m) for 100 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.717100099999999684996510040946304798126220703125,
            "lon": 35.99935990000000174404704011976718902587890625
        },
        "time_window": {
            "start_ts": "2026-06-05T14:08:05+00:00",
            "end_ts": "2026-06-05T15:48:34+00:00"
        },
        "searched_at": "2026-06-05T16:15:04.565440+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 14:06 UTC 95/100
Vessel A: IMO 9956939 (TRANS FJORD) Panama
Vessel B: IMO 9572563 (GAZ HORIZON) Marshall Is
  • Minimum Distance: 0 meters
  • Average Distance: 2 meters
  • Duration: 2h 39m
  • Period: 2026-06-05T14:06:25+00:00 to 2026-06-05T16:45:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (TRANS FJORD and GAZ HORIZON) maintained close proximity (min 0m, avg 2m) for 159 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 0m, avg 2m
Duration25/25Duration 159 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T21:30:18.780608+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352003272,
        "imo": 9956939,
        "name": "TRANS FJORD",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "min_distance_m": 0.200000000000000011102230246251565404236316680908203125,
    "avg_distance_m": 2.20000000000000017763568394002504646778106689453125,
    "distance_consistency_m": 1.5,
    "duration_minutes": 159,
    "overlap_duration_s": 9540,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T14:06:25+00:00",
        "end": "2026-06-05T16:45:25+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 2m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 159 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: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TRANS FJORD and GAZ HORIZON) maintained close proximity (min 0m, avg 2m) for 159 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.7171005000000008067218004725873470306396484375,
            "lon": 35.99936139999999795691110193729400634765625
        },
        "time_window": {
            "start_ts": "2026-06-05T14:06:25+00:00",
            "end_ts": "2026-06-05T16:45:25+00:00"
        },
        "searched_at": "2026-06-05T21:30:18.780608+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681518_thumbnail_20260605213022.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681518_thumbnail_20260605213022.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jun 5, 2026 14:06 UTC 75.0%
  • Duration: 2h 40m
  • Radius: 340 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.7171, 35.9996
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 340.19999999999998863131622783839702606201171875,
    "duration_minutes": 160.900000000000005684341886080801486968994140625,
    "points": 19,
    "centroid": {
        "lat": 31.717077278947368057515632244758307933807373046875,
        "lon": 35.9995590421052611418417654931545257568359375
    },
    "bbox": {
        "min_lat": 31.716591699999998610337570426054298877716064453125,
        "min_lon": 35.9993199999999973215381032787263393402099609375,
        "max_lat": 31.7172182999999989760908647440373897552490234375,
        "max_lon": 36.00310329999999936489984975196421146392822265625
    },
    "zone_id": "discovered_138"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jun 5, 2026 14:06 UTC 80.0%
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 2h 40m
  • Data Points: 19 AIS positions
  • Period: 2026-06-05T14:06:07+00:00 to 2026-06-05T16:47:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 160.900000000000005684341886080801486968994140625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-06-05T14:06:07+00:00",
        "lat": 31.717111700000000240606823354028165340423583984375,
        "lon": 35.99936000000000291265678242780268192291259765625
    },
    "last_point": {
        "ts": "2026-06-05T16:47:00+00:00",
        "lat": 31.716951699999999192414179560728371143341064453125,
        "lon": 35.9995066999999977497282088734209537506103515625
    }
}
Methodology: 2026.01.18
Sts🛰️? Eastern Mediterranean Surveillance Zone
Jun 5, 2026 14:06 UTC 95/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: Denver (DENVER) SIERRA LEONE
  • Minimum Distance: 1 meters
  • Average Distance: 8 meters
  • Duration: 2h 10m
  • Period: 2026-06-05T14:06:07+00:00 to 2026-06-05T16:16:49+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and DENVER) maintained close proximity (min 1m, avg 8m) for 131 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 1m, avg 8m
Duration25/25Duration 131 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG • Acquired: 2026-06-05T15:32:29.825574Z • Platform: sentinel-1a

Searched: 2026-06-05T21:45:11.517640+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 667001964,
        "imo": 9382712,
        "name": "DENVER",
        "flag": "SIERRA LEONE"
    },
    "min_distance_m": 0.59999999999999997779553950749686919152736663818359375,
    "avg_distance_m": 7.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 7.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 130.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 7842,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-05T14:06:07+00:00",
        "end": "2026-06-05T16:16:49+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_138",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 8m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 131 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and DENVER) maintained close proximity (min 1m, avg 8m) for 131 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 31.71709200000000095087671070359647274017333984375,
            "lon": 35.99933519999999731453499407507479190826416015625
        },
        "time_window": {
            "start_ts": "2026-06-05T14:06:07+00:00",
            "end_ts": "2026-06-05T16:16:49+00:00"
        },
        "searched_at": "2026-06-05T21:45:11.517640+00:00",
        "scene_id": "S1A_IW_GRDH_1SDV_20260605T153229_20260605T153254_064836_082B70_3862_COG",
        "scene_datetime": "2026-06-05T15:32:29.825574Z",
        "platform": "sentinel-1a",
        "bbox": {
            "min_lon": 35.8118630000000024438122636638581752777099609375,
            "min_lat": 30.863133999999998735574990860186517238616943359375,
            "max_lon": 38.8217240000000032296156859956681728363037109375,
            "max_lat": 32.77985000000000326281224261038005352020263671875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681521_thumbnail_20260605214514.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/06\/event_681521_thumbnail_20260605214514.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
May 11, 2026 11:49 UTC 80.0%
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 2h 51m
  • Data Points: 4 AIS positions
  • Period: 2026-05-11T11:49:20+00:00 to 2026-05-11T14:40:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_104",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 171.599999999999994315658113919198513031005859375,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-05-11T11:49:20+00:00",
        "lat": 31.71707500000000123918653116561472415924072265625,
        "lon": 35.9993750000000005684341886080801486968994140625
    },
    "last_point": {
        "ts": "2026-05-11T14:40:55+00:00",
        "lat": 31.717008299999999820784069015644490718841552734375,
        "lon": 35.9996067000000010693838703446090221405029296875
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 21:05 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 1 hours
  • Data Points: 32 AIS positions
  • Period: 2026-04-28T21:05:42+00:00 to 2026-04-28T22:05:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 60.2000000000000028421709430404007434844970703125,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-04-28T21:05:42+00:00",
        "lat": 40.907561700000002247179509140551090240478515625,
        "lon": 28.79004330000000067002474679611623287200927734375
    },
    "last_point": {
        "ts": "2026-04-28T22:05:52+00:00",
        "lat": 40.8651483000000013134922483004629611968994140625,
        "lon": 28.500016699999999758574631414376199245452880859375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 20:00 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 2h 5m
  • Data Points: 49 AIS positions
  • Period: 2026-04-28T20:00:07+00:00 to 2026-04-28T22:05:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 125.7999999999999971578290569595992565155029296875,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-04-28T20:00:07+00:00",
        "lat": 40.94103830000000243671820499002933502197265625,
        "lon": 28.904900000000001369926394545473158359527587890625
    },
    "last_point": {
        "ts": "2026-04-28T22:05:52+00:00",
        "lat": 40.8651483000000013134922483004629611968994140625,
        "lon": 28.500016699999999758574631414376199245452880859375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 19:17 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 2h 48m
  • Data Points: 63 AIS positions
  • Period: 2026-04-28T19:17:11+00:00 to 2026-04-28T22:05:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 168.69999999999998863131622783839702606201171875,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-04-28T19:17:11+00:00",
        "lat": 40.97910329999999845540514797903597354888916015625,
        "lon": 28.982338299999998554312696796841919422149658203125
    },
    "last_point": {
        "ts": "2026-04-28T22:05:52+00:00",
        "lat": 40.8651483000000013134922483004629611968994140625,
        "lon": 28.500016699999999758574631414376199245452880859375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 14:12 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 30m
  • Data Points: 41 AIS positions
  • Period: 2026-04-28T14:58:31+00:00 to 2026-04-28T21:29:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-04-28T14:58:31+00:00",
        "lat": 41.34716329999999828714862815104424953460693359375,
        "lon": 29.0632982999999995854523149318993091583251953125
    },
    "last_point": {
        "ts": "2026-04-28T21:29:22+00:00",
        "lat": 40.892823300000003428067429922521114349365234375,
        "lon": 28.6758166999999986046532285399734973907470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 28, 2026 13:03 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 1h 55m
  • Data Points: 19 AIS positions
  • Period: 2026-04-28T13:03:11+00:00 to 2026-04-28T14:58:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 115.2999999999999971578290569595992565155029296875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-04-28T13:03:11+00:00",
        "lat": 41.36083500000000157115209731273353099822998046875,
        "lon": 28.98793500000000022964741219766438007354736328125
    },
    "last_point": {
        "ts": "2026-04-28T14:58:31+00:00",
        "lat": 41.34716329999999828714862815104424953460693359375,
        "lon": 29.0632982999999995854523149318993091583251953125
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 13:03 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 33m
  • Data Points: 34 AIS positions
  • Period: 2026-04-28T13:54:16+00:00 to 2026-04-28T20:27:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-04-28T13:54:16+00:00",
        "lat": 41.36759169999999841138560441322624683380126953125,
        "lon": 29.023991699999999838155417819507420063018798828125
    },
    "last_point": {
        "ts": "2026-04-28T20:27:22+00:00",
        "lat": 40.933126700000002529122866690158843994140625,
        "lon": 28.89634170000000068512235884554684162139892578125
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 12:03 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 39m
  • Data Points: 28 AIS positions
  • Period: 2026-04-28T12:50:20+00:00 to 2026-04-28T19:29:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 399,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-04-28T12:50:20+00:00",
        "lat": 41.35795999999999850160747882910072803497314453125,
        "lon": 28.99249329999999957863110466860234737396240234375
    },
    "last_point": {
        "ts": "2026-04-28T19:29:22+00:00",
        "lat": 40.95842499999999830606611794792115688323974609375,
        "lon": 28.9455032999999986031980370171368122100830078125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 28, 2026 12:03 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 2h 54m
  • Data Points: 31 AIS positions
  • Period: 2026-04-28T12:03:50+00:00 to 2026-04-28T14:58:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 174.69999999999998863131622783839702606201171875,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-04-28T12:03:50+00:00",
        "lat": 41.35746830000000073823684942908585071563720703125,
        "lon": 29.009768300000001062244336935691535472869873046875
    },
    "last_point": {
        "ts": "2026-04-28T14:58:31+00:00",
        "lat": 41.34716329999999828714862815104424953460693359375,
        "lon": 29.0632982999999995854523149318993091583251953125
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 11:07 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 3h 51m
  • Data Points: 41 AIS positions
  • Period: 2026-04-28T11:07:19+00:00 to 2026-04-28T14:58:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 231.19999999999998863131622783839702606201171875,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-04-28T11:07:19+00:00",
        "lat": 41.35703670000000187201294465921819210052490234375,
        "lon": 29.029161699999999513011061935685575008392333984375
    },
    "last_point": {
        "ts": "2026-04-28T14:58:31+00:00",
        "lat": 41.34716329999999828714862815104424953460693359375,
        "lon": 29.0632982999999995854523149318993091583251953125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 28, 2026 11:07 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 3h 51m
  • Data Points: 41 AIS positions
  • Period: 2026-04-28T11:07:19+00:00 to 2026-04-28T14:58:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 231.19999999999998863131622783839702606201171875,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-04-28T11:07:19+00:00",
        "lat": 41.35703670000000187201294465921819210052490234375,
        "lon": 29.029161699999999513011061935685575008392333984375
    },
    "last_point": {
        "ts": "2026-04-28T14:58:31+00:00",
        "lat": 41.34716329999999828714862815104424953460693359375,
        "lon": 29.0632982999999995854523149318993091583251953125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 28, 2026 01:16 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 1h 1m
  • Data Points: 7 AIS positions
  • Period: 2026-04-28T01:16:29+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 61,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-04-28T01:16:29+00:00",
        "lat": 41.38197000000000258523868978954851627349853515625,
        "lon": 29.0256116999999989047864801250398159027099609375
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 01:16 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 1h 1m
  • Data Points: 7 AIS positions
  • Period: 2026-04-28T01:16:29+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 61,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-04-28T01:16:29+00:00",
        "lat": 41.38197000000000258523868978954851627349853515625,
        "lon": 29.0256116999999989047864801250398159027099609375
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 28, 2026 00:22 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 1h 55m
  • Data Points: 8 AIS positions
  • Period: 2026-04-28T00:22:01+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 115.5,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-04-28T00:22:01+00:00",
        "lat": 41.38895169999999978927007759921252727508544921875,
        "lon": 29.013835000000000263753463514149188995361328125
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 28, 2026 00:22 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 1h 55m
  • Data Points: 8 AIS positions
  • Period: 2026-04-28T00:22:01+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 115.5,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-04-28T00:22:01+00:00",
        "lat": 41.38895169999999978927007759921252727508544921875,
        "lon": 29.013835000000000263753463514149188995361328125
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 27, 2026 23:02 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 3h 15m
  • Data Points: 12 AIS positions
  • Period: 2026-04-27T23:02:29+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 195,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-04-27T23:02:29+00:00",
        "lat": 41.40188330000000149766492540948092937469482421875,
        "lon": 28.9819150000000007594280759803950786590576171875
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 27, 2026 23:02 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 3h 15m
  • Data Points: 12 AIS positions
  • Period: 2026-04-27T23:02:29+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 195,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-04-27T23:02:29+00:00",
        "lat": 41.40188330000000149766492540948092937469482421875,
        "lon": 28.9819150000000007594280759803950786590576171875
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Monitoring Zone
Apr 27, 2026 22:54 UTC 80.0%
  • Zone: Eastern Mediterranean Monitoring Zone
  • Duration: 3h 22m
  • Data Points: 14 AIS positions
  • Period: 2026-04-27T22:54:39+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 202.80000000000001136868377216160297393798828125,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-04-27T22:54:39+00:00",
        "lat": 41.40493000000000023419488570652902126312255859375,
        "lon": 28.98282830000000132031345856375992298126220703125
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Apr 27, 2026 22:54 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 3h 22m
  • Data Points: 14 AIS positions
  • Period: 2026-04-27T22:54:39+00:00 to 2026-04-28T02:17:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 202.80000000000001136868377216160297393798828125,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-04-27T22:54:39+00:00",
        "lat": 41.40493000000000023419488570652902126312255859375,
        "lon": 28.98282830000000132031345856375992298126220703125
    },
    "last_point": {
        "ts": "2026-04-28T02:17:29+00:00",
        "lat": 41.379261700000000701038516126573085784912109375,
        "lon": 29.034588299999999350120560848154127597808837890625
    }
}
Methodology: 2026.01.18
Zone Dwell Baltic Sea Sanctioned Vessel Zone
Apr 25, 2026 10:00 UTC 80.0%
  • Zone: Baltic Sea Sanctioned Vessel Zone
  • Duration: 1h 18m
  • Data Points: 32 AIS positions
  • Period: 2026-04-25T10:00:49+00:00 to 2026-04-25T11:19:01+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_027",
    "zone_name": "Baltic Sea Sanctioned Vessel Zone",
    "dwell_minutes": 78.2000000000000028421709430404007434844970703125,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-04-25T10:00:49+00:00",
        "lat": 41.74442830000000270729287876747548580169677734375,
        "lon": 29.032516699999998621706254198215901851654052734375
    },
    "last_point": {
        "ts": "2026-04-25T11:19:01+00:00",
        "lat": 41.94195830000000313475538860075175762176513671875,
        "lon": 28.785201699999998226076058926992118358612060546875
    }
}
Methodology: 2026.01.18
Zone Dwell Baltic Sea Sanctioned Vessel Zone
Apr 25, 2026 09:55 UTC 80.0%
  • Zone: Baltic Sea Sanctioned Vessel Zone
  • Duration: 1h 23m
  • Data Points: 35 AIS positions
  • Period: 2026-04-25T09:55:30+00:00 to 2026-04-25T11:19:01+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_027",
    "zone_name": "Baltic Sea Sanctioned Vessel Zone",
    "dwell_minutes": 83.5,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-04-25T09:55:30+00:00",
        "lat": 41.73184330000000130667103803716599941253662109375,
        "lon": 29.050605000000000899262886377982795238494873046875
    },
    "last_point": {
        "ts": "2026-04-25T11:19:01+00:00",
        "lat": 41.94195830000000313475538860075175762176513671875,
        "lon": 28.785201699999998226076058926992118358612060546875
    }
}
Methodology: 2026.01.18
Ais Gap🛰️✗ Bosphorus/Dardanelles Approach
Apr 25, 2026 04:55 UTC 70.0%
  • Gap Duration: 4h 59m
  • Last Seen: 2026-04-25T04:55:50+00:00 at 40.9820, 28.9940 (Zone: Bosphorus/Dardanelles Approach)
  • Next Seen: 2026-04-25T09:55:30+00:00 at 41.7318, 29.0506

🛰️ Gap Corroboration

No Imagery

These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.

SAR Imagery (Sentinel-1)

Status: ✗ No SAR coverage

No Sentinel-1 scenes covering corridor and time window

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-04-25T10:15:01.457195+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 299.69999999999998863131622783839702606201171875,
    "last_seen": {
        "ts": "2026-04-25T04:55:50+00:00",
        "lat": 40.98202669999999869787643547169864177703857421875,
        "lon": 28.994023299999998499743014690466225147247314453125,
        "sog": 9.5,
        "zone_id": "osint_bosphorus"
    },
    "next_seen": {
        "ts": "2026-04-25T09:55:30+00:00",
        "lat": 41.73184330000000130667103803716599941253662109375,
        "lon": 29.050605000000000899262886377982795238494873046875,
        "zone_ids": [
            "discovered_020",
            "discovered_027"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 40.98202669999999869787643547169864177703857421875,
                "lon": 28.994023299999998499743014690466225147247314453125,
                "ts": "2026-04-25T04:55:50+00:00"
            },
            "end": {
                "lat": 41.73184330000000130667103803716599941253662109375,
                "lon": 29.050605000000000899262886377982795238494873046875,
                "ts": "2026-04-25T09:55:30+00:00"
            },
            "bbox": {
                "min_lat": 40.80184700000000219688445213250815868377685546875,
                "min_lon": 28.753978000000000037061909097246825695037841796875,
                "max_lat": 41.91202299999999780766302137635648250579833984375,
                "max_lon": 29.290651000000000436784830526448786258697509765625
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "not_found",
            "notes": "No Sentinel-1 scenes covering corridor and time window"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-04-25T10:15:01.457195+00:00"
    }
}
Methodology: 2026.01.18
Ais Gap🛰️✗ Southeast Aegean Monitoring Zone
Apr 22, 2026 21:15 UTC 70.0%
  • Gap Duration: 4h 28m
  • Last Seen: 2026-04-22T21:15:18+00:00 at 36.7290, 26.5865 (Zone: Southeast Aegean Monitoring Zone)
  • Next Seen: 2026-04-23T01:43:59+00:00 at 37.4681, 25.9066

🛰️ Gap Corroboration

No Imagery

These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.

SAR Imagery (Sentinel-1)

Status: ✗ No SAR coverage

No Sentinel-1 scenes covering corridor and time window

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-04-23T02:00:01.657032+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 268.69999999999998863131622783839702606201171875,
    "last_seen": {
        "ts": "2026-04-22T21:15:18+00:00",
        "lat": 36.72901829999999989695425028912723064422607421875,
        "lon": 26.586506700000001046646502800285816192626953125,
        "sog": 13,
        "zone_id": "discovered_083"
    },
    "next_seen": {
        "ts": "2026-04-23T01:43:59+00:00",
        "lat": 37.468130000000002155502443201839923858642578125,
        "lon": 25.906608299999998479279383900575339794158935546875,
        "zone_ids": [
            "discovered_091"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 36.72901829999999989695425028912723064422607421875,
                "lon": 26.586506700000001046646502800285816192626953125,
                "ts": "2026-04-22T21:15:18+00:00"
            },
            "end": {
                "lat": 37.468130000000002155502443201839923858642578125,
                "lon": 25.906608299999998479279383900575339794158935546875,
                "ts": "2026-04-23T01:43:59+00:00"
            },
            "bbox": {
                "min_lat": 36.5488380000000034897311707027256488800048828125,
                "min_lon": 25.680704999999999671445038984529674053192138671875,
                "max_lat": 37.64831000000000216232365346513688564300537109375,
                "max_lon": 26.81240999999999985448084771633148193359375
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "not_found",
            "notes": "No Sentinel-1 scenes covering corridor and time window"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-04-23T02:00:01.657032+00:00"
    }
}
Methodology: 2026.01.18
Ais Gap🛰️✗ Central Baltic Monitoring Zone
Apr 22, 2026 16:00 UTC 70.0%
  • Gap Duration: 5h 12m
  • Last Seen: 2026-04-22T16:00:58+00:00 at 35.8602, 27.4192 (Zone: Central Baltic Monitoring Zone)
  • Next Seen: 2026-04-22T21:12:59+00:00 at 36.7237, 26.5945

🛰️ Gap Corroboration

No Imagery

These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.

SAR Imagery (Sentinel-1)

Status: ✗ No SAR coverage

No Sentinel-1 scenes covering corridor and time window

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-04-22T21:30:02.220942+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 312,
    "last_seen": {
        "ts": "2026-04-22T16:00:58+00:00",
        "lat": 35.86020330000000200243448489345610141754150390625,
        "lon": 27.41920999999999963847585604526102542877197265625,
        "sog": 13,
        "zone_id": "discovered_067"
    },
    "next_seen": {
        "ts": "2026-04-22T21:12:59+00:00",
        "lat": 36.7236716999999970312273944728076457977294921875,
        "lon": 26.5945166999999997869963408447802066802978515625,
        "zone_ids": [
            "discovered_083"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 35.86020330000000200243448489345610141754150390625,
                "lon": 27.41920999999999963847585604526102542877197265625,
                "ts": "2026-04-22T16:00:58+00:00"
            },
            "end": {
                "lat": 36.7236716999999970312273944728076457977294921875,
                "lon": 26.5945166999999997869963408447802066802978515625,
                "ts": "2026-04-22T21:12:59+00:00"
            },
            "bbox": {
                "min_lat": 35.68002299999999848978404770605266094207763671875,
                "min_lon": 26.370971000000000827867552288807928562164306640625,
                "max_lat": 36.903852000000000543877831660211086273193359375,
                "max_lon": 27.64275500000000107547748484648764133453369140625
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "not_found",
            "notes": "No Sentinel-1 scenes covering corridor and time window"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-04-22T21:30:02.220942+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Istanbul Black Sea Surveillance Zone
Apr 10, 2026 22:11 UTC 80.0%
  • Zone: Istanbul Black Sea Surveillance Zone
  • Duration: 1h 22m
  • Data Points: 9 AIS positions
  • Period: 2026-04-10T22:11:17+00:00 to 2026-04-10T23:33:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_024",
    "zone_name": "Central Aegean Monitoring Zone",
    "dwell_minutes": 82.7000000000000028421709430404007434844970703125,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-04-10T22:11:17+00:00",
        "lat": 37.3226183000000020228981156833469867706298828125,
        "lon": 23.766781699999999233341441140510141849517822265625
    },
    "last_point": {
        "ts": "2026-04-10T23:33:59+00:00",
        "lat": 37.08021670000000113986970973201096057891845703125,
        "lon": 23.655943300000000562022250960581004619598388671875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_022
Mar 3, 2026 22:43 UTC 80.0%
  • Zone: discovered_022
  • Duration: 1h 11m
  • Data Points: 17 AIS positions
  • Period: 2026-03-03T22:43:34+00:00 to 2026-03-03T23:55:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_022",
    "zone_name": "Saronic Gulf Sanctions Monitoring Zone",
    "dwell_minutes": 71.5,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-03-03T22:43:34+00:00",
        "lat": 37.36436499999999938381733954884111881256103515625,
        "lon": 23.788043299999998225757735781371593475341796875
    },
    "last_point": {
        "ts": "2026-03-03T23:55:04+00:00",
        "lat": 37.47156170000000230402292800135910511016845703125,
        "lon": 23.786538300000000134559741127304732799530029296875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_022
Mar 3, 2026 21:00 UTC 80.0%
  • Zone: discovered_022
  • Duration: 2h 55m
  • Data Points: 22 AIS positions
  • Period: 2026-03-03T21:00:05+00:00 to 2026-03-03T23:55:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_022",
    "zone_name": "Saronic Gulf Sanctions Monitoring Zone",
    "dwell_minutes": 175,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-03-03T21:00:05+00:00",
        "lat": 37.23847500000000110276232589967548847198486328125,
        "lon": 23.681509999999999394049154943786561489105224609375
    },
    "last_point": {
        "ts": "2026-03-03T23:55:04+00:00",
        "lat": 37.47156170000000230402292800135910511016845703125,
        "lon": 23.786538300000000134559741127304732799530029296875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_022
Mar 3, 2026 20:37 UTC 80.0%
  • Zone: discovered_022
  • Duration: 3h 18m
  • Data Points: 23 AIS positions
  • Period: 2026-03-03T20:37:04+00:00 to 2026-03-03T23:55:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_022",
    "zone_name": "Saronic Gulf Sanctions Monitoring Zone",
    "dwell_minutes": 198,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-03-03T20:37:04+00:00",
        "lat": 37.21142499999999841975295566953718662261962890625,
        "lon": 23.657174999999998732391759403981268405914306640625
    },
    "last_point": {
        "ts": "2026-03-03T23:55:04+00:00",
        "lat": 37.47156170000000230402292800135910511016845703125,
        "lon": 23.786538300000000134559741127304732799530029296875
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 17:02 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 1h 11m
  • Data Points: 15 AIS positions
  • Period: 2026-03-03T17:02:54+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 71,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-03-03T17:02:54+00:00",
        "lat": 36.974496700000003102104528807103633880615234375,
        "lon": 23.40779330000000157951944856904447078704833984375
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 16:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 2h 12m
  • Data Points: 29 AIS positions
  • Period: 2026-03-03T16:01:05+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 132.80000000000001136868377216160297393798828125,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-03-03T16:01:05+00:00",
        "lat": 36.906166699999999991632648743689060211181640625,
        "lon": 23.341194999999999026840669102966785430908203125
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 15:10 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 3h 3m
  • Data Points: 50 AIS positions
  • Period: 2026-03-03T15:10:05+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 183.80000000000001136868377216160297393798828125,
    "points_in_zone": 50,
    "first_point": {
        "ts": "2026-03-03T15:10:05+00:00",
        "lat": 36.8863199999999977762854541651904582977294921875,
        "lon": 23.307044999999998680095814052037894725799560546875
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 14:03 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 4h 10m
  • Data Points: 60 AIS positions
  • Period: 2026-03-03T14:03:54+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 250,
    "points_in_zone": 60,
    "first_point": {
        "ts": "2026-03-03T14:03:54+00:00",
        "lat": 36.96715830000000124755388242192566394805908203125,
        "lon": 23.315208299999998331486494862474501132965087890625
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 13:03 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 5h 10m
  • Data Points: 79 AIS positions
  • Period: 2026-03-03T13:03:04+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 310.80000000000001136868377216160297393798828125,
    "points_in_zone": 79,
    "first_point": {
        "ts": "2026-03-03T13:03:04+00:00",
        "lat": 37.0405717000000009875293471850454807281494140625,
        "lon": 23.323543300000000755289875087328255176544189453125
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 12:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 12m
  • Data Points: 93 AIS positions
  • Period: 2026-03-03T12:01:04+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 372.80000000000001136868377216160297393798828125,
    "points_in_zone": 93,
    "first_point": {
        "ts": "2026-03-03T12:01:04+00:00",
        "lat": 37.0380949999999984356691129505634307861328125,
        "lon": 23.3244083000000017591446521691977977752685546875
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 11:05 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 31m
  • Data Points: 98 AIS positions
  • Period: 2026-03-03T11:42:45+00:00 to 2026-03-03T18:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 391.1000000000000227373675443232059478759765625,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-03-03T11:42:45+00:00",
        "lat": 37.0167416999999971949364407919347286224365234375,
        "lon": 23.32233670000000103073034551925957202911376953125
    },
    "last_point": {
        "ts": "2026-03-03T18:13:54+00:00",
        "lat": 37.0572599999999994224708643741905689239501953125,
        "lon": 23.495521700000001175112629425711929798126220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 10:08 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 31m
  • Data Points: 96 AIS positions
  • Period: 2026-03-03T10:48:04+00:00 to 2026-03-03T17:19:34+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 391.5,
    "points_in_zone": 96,
    "first_point": {
        "ts": "2026-03-03T10:48:04+00:00",
        "lat": 36.95315500000000241698216996155679225921630859375,
        "lon": 23.314965000000000827640178613364696502685546875
    },
    "last_point": {
        "ts": "2026-03-03T17:19:34+00:00",
        "lat": 36.99388330000000024710971047170460224151611328125,
        "lon": 23.42790670000000119443939183838665485382080078125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 09:03 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 36m
  • Data Points: 95 AIS positions
  • Period: 2026-03-03T09:53:35+00:00 to 2026-03-03T16:29:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 396.19999999999998863131622783839702606201171875,
    "points_in_zone": 95,
    "first_point": {
        "ts": "2026-03-03T09:53:35+00:00",
        "lat": 36.891923300000001972875907085835933685302734375,
        "lon": 23.304700000000000414956957683898508548736572265625
    },
    "last_point": {
        "ts": "2026-03-03T16:29:45+00:00",
        "lat": 36.9347149999999970759745338000357151031494140625,
        "lon": 23.36857499999999987494447850622236728668212890625
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 08:06 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 36m
  • Data Points: 89 AIS positions
  • Period: 2026-03-03T08:52:14+00:00 to 2026-03-03T15:28:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 396.5,
    "points_in_zone": 89,
    "first_point": {
        "ts": "2026-03-03T08:52:14+00:00",
        "lat": 36.82402499999999889723767410032451152801513671875,
        "lon": 23.29568499999999886540535953827202320098876953125
    },
    "last_point": {
        "ts": "2026-03-03T15:28:44+00:00",
        "lat": 36.8783566999999976587787386961281299591064453125,
        "lon": 23.3124083000000013043973012827336788177490234375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 05:04 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 27m
  • Data Points: 51 AIS positions
  • Period: 2026-03-03T05:45:25+00:00 to 2026-03-03T12:13:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 387.80000000000001136868377216160297393798828125,
    "points_in_zone": 51,
    "first_point": {
        "ts": "2026-03-03T05:45:25+00:00",
        "lat": 36.66009669999999687206582166254520416259765625,
        "lon": 23.272330000000000183035808731801807880401611328125
    },
    "last_point": {
        "ts": "2026-03-03T12:13:14+00:00",
        "lat": 37.05258169999999751098584965802729129791259765625,
        "lon": 23.325378300000000564295987715013325214385986328125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 04:06 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 15m
  • Data Points: 45 AIS positions
  • Period: 2026-03-03T04:57:44+00:00 to 2026-03-03T11:12:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 375.19999999999998863131622783839702606201171875,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-03-03T04:57:44+00:00",
        "lat": 36.7235749999999967485564411617815494537353515625,
        "lon": 23.28078000000000002955857780762016773223876953125
    },
    "last_point": {
        "ts": "2026-03-03T11:12:54+00:00",
        "lat": 36.98173669999999901847331784665584564208984375,
        "lon": 23.3189382999999992307493812404572963714599609375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 03:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 38m
  • Data Points: 44 AIS positions
  • Period: 2026-03-03T03:50:34+00:00 to 2026-03-03T10:29:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 398.69999999999998863131622783839702606201171875,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-03-03T03:50:34+00:00",
        "lat": 36.81085999999999813780959811992943286895751953125,
        "lon": 23.29228499999999968395059113390743732452392578125
    },
    "last_point": {
        "ts": "2026-03-03T10:29:14+00:00",
        "lat": 36.93171829999999999927240423858165740966796875,
        "lon": 23.311699999999998311750459834001958370208740234375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 02:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 35m
  • Data Points: 49 AIS positions
  • Period: 2026-03-03T02:54:23+00:00 to 2026-03-03T09:29:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 395.5,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-03-03T02:54:23+00:00",
        "lat": 36.883551699999998163548298180103302001953125,
        "lon": 23.303823300000001239595803781412541866302490234375
    },
    "last_point": {
        "ts": "2026-03-03T09:29:55+00:00",
        "lat": 36.865583299999997279883245937526226043701171875,
        "lon": 23.3004983000000009951691026799380779266357421875
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 01:00 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 31m
  • Data Points: 57 AIS positions
  • Period: 2026-03-03T01:52:04+00:00 to 2026-03-03T08:23:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 391.6000000000000227373675443232059478759765625,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-03-03T01:52:04+00:00",
        "lat": 36.96094000000000079353412729687988758087158203125,
        "lon": 23.31332330000000041536623029969632625579833984375
    },
    "last_point": {
        "ts": "2026-03-03T08:23:43+00:00",
        "lat": 36.79007829999999756864781375043094158172607421875,
        "lon": 23.292241700000001713988240226171910762786865234375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 3, 2026 00:04 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 5h 40m
  • Data Points: 85 AIS positions
  • Period: 2026-03-03T00:04:55+00:00 to 2026-03-03T05:45:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 340.5,
    "points_in_zone": 85,
    "first_point": {
        "ts": "2026-03-03T00:04:55+00:00",
        "lat": 37.09374170000000248137439484708011150360107421875,
        "lon": 23.334501700000000568024915992282330989837646484375
    },
    "last_point": {
        "ts": "2026-03-03T05:45:25+00:00",
        "lat": 36.66009669999999687206582166254520416259765625,
        "lon": 23.272330000000000183035808731801807880401611328125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 2, 2026 23:00 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 35m
  • Data Points: 102 AIS positions
  • Period: 2026-03-02T23:10:05+00:00 to 2026-03-03T05:45:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 395.30000000000001136868377216160297393798828125,
    "points_in_zone": 102,
    "first_point": {
        "ts": "2026-03-02T23:10:05+00:00",
        "lat": 37.12109170000000091249603428877890110015869140625,
        "lon": 23.38916499999999842884790268726646900177001953125
    },
    "last_point": {
        "ts": "2026-03-03T05:45:25+00:00",
        "lat": 36.66009669999999687206582166254520416259765625,
        "lon": 23.272330000000000183035808731801807880401611328125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 2, 2026 22:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 36m
  • Data Points: 107 AIS positions
  • Period: 2026-03-02T22:51:23+00:00 to 2026-03-03T05:27:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 396.3999999999999772626324556767940521240234375,
    "points_in_zone": 107,
    "first_point": {
        "ts": "2026-03-02T22:51:23+00:00",
        "lat": 37.12303670000000010986695997416973114013671875,
        "lon": 23.416006700000000506634023622609674930572509765625
    },
    "last_point": {
        "ts": "2026-03-03T05:27:44+00:00",
        "lat": 36.6836617000000018151695257984101772308349609375,
        "lon": 23.27540330000000068366716732271015644073486328125
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 2, 2026 21:56 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 28m
  • Data Points: 121 AIS positions
  • Period: 2026-03-02T21:56:35+00:00 to 2026-03-03T04:24:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 388.19999999999998863131622783839702606201171875,
    "points_in_zone": 121,
    "first_point": {
        "ts": "2026-03-02T21:56:35+00:00",
        "lat": 37.12626999999999810597728355787694454193115234375,
        "lon": 23.4968582999999995308826328255236148834228515625
    },
    "last_point": {
        "ts": "2026-03-03T04:24:45+00:00",
        "lat": 36.76592000000000126647137221880257129669189453125,
        "lon": 23.286229999999999762394509161822497844696044921875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_022
Mar 2, 2026 19:04 UTC 80.0%
  • Zone: discovered_022
  • Duration: 1h 36m
  • Data Points: 6 AIS positions
  • Period: 2026-03-02T19:04:33+00:00 to 2026-03-02T20:40:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_022",
    "zone_name": "Saronic Gulf Sanctions Monitoring Zone",
    "dwell_minutes": 96.2999999999999971578290569595992565155029296875,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-03-02T19:04:33+00:00",
        "lat": 37.1376249999999998863131622783839702606201171875,
        "lon": 23.74988330000000047448338591493666172027587890625
    },
    "last_point": {
        "ts": "2026-03-02T20:40:54+00:00",
        "lat": 37.12932670000000001664375304244458675384521484375,
        "lon": 23.611316699999999713099896325729787349700927734375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 1, 2026 20:05 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 1h 34m
  • Data Points: 4 AIS positions
  • Period: 2026-03-01T20:05:15+00:00 to 2026-03-01T21:39:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 94,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-03-01T20:05:15+00:00",
        "lat": 36.92045329999999836445567780174314975738525390625,
        "lon": 23.358116700000000065529093262739479541778564453125
    },
    "last_point": {
        "ts": "2026-03-01T21:39:15+00:00",
        "lat": 36.80289330000000092013578978367149829864501953125,
        "lon": 23.333916699999999622150426148436963558197021484375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 1, 2026 19:02 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 2h 36m
  • Data Points: 11 AIS positions
  • Period: 2026-03-01T19:02:53+00:00 to 2026-03-01T21:39:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 156.400000000000005684341886080801486968994140625,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-03-01T19:02:53+00:00",
        "lat": 36.988658299999997325357981026172637939453125,
        "lon": 23.401516699999998394332578754983842372894287109375
    },
    "last_point": {
        "ts": "2026-03-01T21:39:15+00:00",
        "lat": 36.80289330000000092013578978367149829864501953125,
        "lon": 23.333916699999999622150426148436963558197021484375
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Mar 1, 2026 17:40 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 3h 58m
  • Data Points: 12 AIS positions
  • Period: 2026-03-01T17:40:45+00:00 to 2026-03-01T21:39:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 238.5,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-03-01T17:40:45+00:00",
        "lat": 37.07081000000000159388946485705673694610595703125,
        "lon": 23.490043299999999959482011036016047000885009765625
    },
    "last_point": {
        "ts": "2026-03-01T21:39:15+00:00",
        "lat": 36.80289330000000092013578978367149829864501953125,
        "lon": 23.333916699999999622150426148436963558197021484375
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_022
Mar 1, 2026 13:41 UTC 80.0%
  • Zone: discovered_022
  • Duration: 2h 10m
  • Data Points: 9 AIS positions
  • Period: 2026-03-01T13:41:55+00:00 to 2026-03-01T15:52:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_022",
    "zone_name": "Saronic Gulf Sanctions Monitoring Zone",
    "dwell_minutes": 130.30000000000001136868377216160297393798828125,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-03-01T13:41:55+00:00",
        "lat": 37.30374499999999926558302831836044788360595703125,
        "lon": 23.74079499999999853798726690001785755157470703125
    },
    "last_point": {
        "ts": "2026-03-01T15:52:15+00:00",
        "lat": 37.170743299999998043858795426785945892333984375,
        "lon": 23.627476699999998999146555433981120586395263671875
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 18, 2026 02:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 1h 9m
  • Data Points: 24 AIS positions
  • Period: 2026-02-18T02:01:44+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 69.2999999999999971578290569595992565155029296875,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-02-18T02:01:44+00:00",
        "lat": 36.9356149999999985311660566367208957672119140625,
        "lon": 23.279861700000001434318619430996477603912353515625
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 18, 2026 01:27 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 1h 44m
  • Data Points: 36 AIS positions
  • Period: 2026-02-18T01:27:05+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 104,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-02-18T01:27:05+00:00",
        "lat": 36.9229217000000033976903068833053112030029296875,
        "lon": 23.302080000000000126192389870993793010711669921875
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 18, 2026 00:09 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 3h 1m
  • Data Points: 41 AIS positions
  • Period: 2026-02-18T00:09:45+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 181.30000000000001136868377216160297393798828125,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-02-18T00:09:45+00:00",
        "lat": 36.942468300000001590888132341206073760986328125,
        "lon": 23.28665000000000162572177941910922527313232421875
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 23:07 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 4h 3m
  • Data Points: 55 AIS positions
  • Period: 2026-02-17T23:07:44+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 243.30000000000001136868377216160297393798828125,
    "points_in_zone": 55,
    "first_point": {
        "ts": "2026-02-17T23:07:44+00:00",
        "lat": 36.9547450000000026193447411060333251953125,
        "lon": 23.273733299999999957208274281583726406097412109375
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Laconian Gulf STS Zone
Feb 17, 2026 22:11 UTC 65/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9448487 (GAZ FRATERNITY) Panama
  • Minimum Distance: 70 meters
  • Average Distance: 172 meters
  • Duration: 58 minutes
  • Period: 2026-02-17T22:11:54+00:00 to 2026-02-17T23:10:15+00:00
  • Vessel A Avg Speed: 1.3 knots
  • Vessel B Avg Speed: 1.2 knots
  • Zone: Laconian Gulf STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 70m, avg 172m) for 58 minutes. Both vessels were slow-moving (avg speeds 1.3 and 1.2 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 70m, avg 172m
Duration10/25Duration 58 minutes
Speed Stability12/20both slow; stable speeds
Distance Consistency8/15Distance variance ±86m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Laconian Gulf STS Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-18T04:15:01.334947+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 372668000,
        "imo": 9448487,
        "name": "GAZ FRATERNITY",
        "flag": "Panama"
    },
    "min_distance_m": 69.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 171.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 86.099999999999994315658113919198513031005859375,
    "duration_minutes": 58.39999999999999857891452847979962825775146484375,
    "overlap_duration_s": 3501,
    "speed_a_avg": 1.3300000000000000710542735760100185871124267578125,
    "speed_a_std": 0.320000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 1.1999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.2200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.3300000000000000710542735760100185871124267578125,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 1.1999999999999999555910790149937383830547332763671875,
            "max_sog": 1.5
        }
    },
    "time_window": {
        "start": "2026-02-17T22:11:54+00:00",
        "end": "2026-02-17T23:10:15+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 172m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 58 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both slow; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b186m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Laconian Gulf STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 70m, avg 172m) for 58 minutes. Both vessels were slow-moving (avg speeds 1.3 and 1.2 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 36.9632371000000006233676685951650142669677734375,
            "lon": 23.266752600000000228419594350270926952362060546875
        },
        "time_window": {
            "start_ts": "2026-02-17T22:11:54+00:00",
            "end_ts": "2026-02-17T23:10:15+00:00"
        },
        "searched_at": "2026-02-18T04:15:01.334947+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 22:11 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 4h 59m
  • Data Points: 60 AIS positions
  • Period: 2026-02-17T22:11:54+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 299.19999999999998863131622783839702606201171875,
    "points_in_zone": 60,
    "first_point": {
        "ts": "2026-02-17T22:11:54+00:00",
        "lat": 36.97159169999999761557774036191403865814208984375,
        "lon": 23.2598449999999985493559506721794605255126953125
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Laconian Gulf STS Zone
Feb 17, 2026 21:09 UTC 80/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9448487 (GAZ FRATERNITY) Panama
  • Minimum Distance: 30 meters
  • Average Distance: 147 meters
  • Duration: 2h 1m
  • Period: 2026-02-17T21:09:05+00:00 to 2026-02-17T23:10:15+00:00
  • Vessel A Avg Speed: 1.1 knots
  • Vessel B Avg Speed: 1.0 knots
  • Zone: Laconian Gulf STS Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 30m, avg 146m) for 121 minutes. Both vessels were slow-moving (avg speeds 1.1 and 1.0 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 146m
Duration25/25Duration 121 minutes
Speed Stability12/20both slow; stable speeds
Distance Consistency8/15Distance variance ±84m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Laconian Gulf STS Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-18T03:15:01.910181+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 372668000,
        "imo": 9448487,
        "name": "GAZ FRATERNITY",
        "flag": "Panama"
    },
    "min_distance_m": 30.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 146.5,
    "distance_consistency_m": 83.7000000000000028421709430404007434844970703125,
    "duration_minutes": 121.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 7270,
    "speed_a_avg": 1.0900000000000000799360577730112709105014801025390625,
    "speed_a_std": 0.38000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 1,
    "speed_b_std": 0.299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.0900000000000000799360577730112709105014801025390625,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 1,
            "max_sog": 1.5
        }
    },
    "time_window": {
        "start": "2026-02-17T21:09:05+00:00",
        "end": "2026-02-17T23:10:15+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 146m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 121 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both slow; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b184m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Laconian Gulf STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 30m, avg 146m) for 121 minutes. Both vessels were slow-moving (avg speeds 1.1 and 1.0 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 36.97227110000000038780854083597660064697265625,
            "lon": 23.25802350000000018326318240724503993988037109375
        },
        "time_window": {
            "start_ts": "2026-02-17T21:09:05+00:00",
            "end_ts": "2026-02-17T23:10:15+00:00"
        },
        "searched_at": "2026-02-18T03:15:01.910181+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 21:06 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 4m
  • Data Points: 67 AIS positions
  • Period: 2026-02-17T21:06:44+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 364.3999999999999772626324556767940521240234375,
    "points_in_zone": 67,
    "first_point": {
        "ts": "2026-02-17T21:06:44+00:00",
        "lat": 36.9850382999999993671735865063965320587158203125,
        "lon": 23.24571329999999846904756850562989711761474609375
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Sts Laconian Gulf STS Zone
Feb 17, 2026 20:57 UTC 80/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9448487 (GAZ FRATERNITY) Panama
  • Minimum Distance: 30 meters
  • Average Distance: 140 meters
  • Duration: 2h 12m
  • Period: 2026-02-17T20:57:34+00:00 to 2026-02-17T23:10:15+00:00
  • Vessel A Avg Speed: 1.1 knots
  • Vessel B Avg Speed: 0.9 knots
  • Zone: Laconian Gulf STS Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 30m, avg 140m) for 133 minutes. Both vessels were slow-moving (avg speeds 1.1 and 0.9 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 140m
Duration25/25Duration 133 minutes
Speed Stability12/20both slow; stable speeds
Distance Consistency8/15Distance variance ±83m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Laconian Gulf STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 372668000,
        "imo": 9448487,
        "name": "GAZ FRATERNITY",
        "flag": "Panama"
    },
    "min_distance_m": 30.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 140.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 83,
    "duration_minutes": 132.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 7961,
    "speed_a_avg": 1.0700000000000000621724893790087662637233734130859375,
    "speed_a_std": 0.35999999999999998667732370449812151491641998291015625,
    "speed_b_avg": 0.93000000000000004884981308350688777863979339599609375,
    "speed_b_std": 0.330000000000000015543122344752191565930843353271484375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.0700000000000000621724893790087662637233734130859375,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.93000000000000004884981308350688777863979339599609375,
            "max_sog": 1.5
        }
    },
    "time_window": {
        "start": "2026-02-17T20:57:34+00:00",
        "end": "2026-02-17T23:10:15+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 140m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 133 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both slow; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b183m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Laconian Gulf STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 30m, avg 140m) for 133 minutes. Both vessels were slow-moving (avg speeds 1.1 and 0.9 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 20:04 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 13m
  • Data Points: 68 AIS positions
  • Period: 2026-02-17T20:57:34+00:00 to 2026-02-18T03:11:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 373.5,
    "points_in_zone": 68,
    "first_point": {
        "ts": "2026-02-17T20:57:34+00:00",
        "lat": 36.98650169999999803849277668632566928863525390625,
        "lon": 23.24455329999999975143509800545871257781982421875
    },
    "last_point": {
        "ts": "2026-02-18T03:11:05+00:00",
        "lat": 37.01173829999999753681549918837845325469970703125,
        "lon": 23.36665670000000005757101462222635746002197265625
    }
}
Methodology: 2026.01.18
Loiter Laconian Gulf STS Zone
Feb 17, 2026 19:59 UTC 75.0%
  • Duration: 1h 32m
  • Radius: 1,113 meters
  • Data Points: 16 AIS positions
  • Centroid: 36.9880, 23.2420
  • Zone: Laconian Gulf STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1113.200000000000045474735088646411895751953125,
    "duration_minutes": 92.7999999999999971578290569595992565155029296875,
    "points": 16,
    "centroid": {
        "lat": 36.9880442750000071328031481243669986724853515625,
        "lon": 23.241978543750004604362402460537850856781005859375
    },
    "bbox": {
        "min_lat": 36.98075330000000349173205904662609100341796875,
        "min_lon": 23.232871700000000458885551779530942440032958984375,
        "max_lat": 36.99491830000000192057996173389256000518798828125,
        "max_lon": 23.250215000000000742375050322152674198150634765625
    },
    "zone_id": "osint_laconian_gulf"
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 19:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 31m
  • Data Points: 64 AIS positions
  • Period: 2026-02-17T19:56:34+00:00 to 2026-02-18T02:28:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 391.69999999999998863131622783839702606201171875,
    "points_in_zone": 64,
    "first_point": {
        "ts": "2026-02-17T19:56:34+00:00",
        "lat": 36.99533670000000284971974906511604785919189453125,
        "lon": 23.2320950000000010504663805477321147918701171875
    },
    "last_point": {
        "ts": "2026-02-18T02:28:15+00:00",
        "lat": 36.945151699999996708356775343418121337890625,
        "lon": 23.253164999999999196234057308174669742584228515625
    }
}
Methodology: 2026.01.18
Loiter Laconian Gulf STS Zone
Feb 17, 2026 18:19 UTC 75.0%
  • Duration: 1h 40m
  • Radius: 1,228 meters
  • Data Points: 27 AIS positions
  • Centroid: 36.9982, 23.2265
  • Zone: Laconian Gulf STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1227.5,
    "duration_minutes": 100,
    "points": 27,
    "centroid": {
        "lat": 36.99822926666666944583994336426258087158203125,
        "lon": 23.226492222222219652394414879381656646728515625
    },
    "bbox": {
        "min_lat": 36.99271999999999849251253181137144565582275390625,
        "min_lon": 23.215071699999999310648490791209042072296142578125,
        "max_lat": 37.004428300000000717773218639194965362548828125,
        "max_lon": 23.23659669999999977108018356375396251678466796875
    },
    "zone_id": "osint_laconian_gulf"
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 18:03 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 35m
  • Data Points: 62 AIS positions
  • Period: 2026-02-17T18:51:25+00:00 to 2026-02-18T01:27:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 395.69999999999998863131622783839702606201171875,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-02-17T18:51:25+00:00",
        "lat": 37.00248669999999862056938582099974155426025390625,
        "lon": 23.218463299999999804867911734618246555328369140625
    },
    "last_point": {
        "ts": "2026-02-18T01:27:05+00:00",
        "lat": 36.9229217000000033976903068833053112030029296875,
        "lon": 23.302080000000000126192389870993793010711669921875
    }
}
Methodology: 2026.01.18
Loiter Laconian Gulf STS Zone
Feb 17, 2026 17:04 UTC 75.0%
  • Duration: 1h 49m
  • Radius: 1,444 meters
  • Data Points: 31 AIS positions
  • Centroid: 37.0016, 23.2195
  • Zone: Laconian Gulf STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1444.09999999999990905052982270717620849609375,
    "duration_minutes": 109.7999999999999971578290569595992565155029296875,
    "points": 31,
    "centroid": {
        "lat": 37.0016240967741936174206784926354885101318359375,
        "lon": 23.219539674193544698255209368653595447540283203125
    },
    "bbox": {
        "min_lat": 36.99636170000000134905349113978445529937744140625,
        "min_lon": 23.20521000000000100271790870465338230133056640625,
        "max_lat": 37.00772669999999919809852144680917263031005859375,
        "max_lon": 23.23013830000000012887539924122393131256103515625
    },
    "zone_id": "osint_laconian_gulf"
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 17:01 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 35m
  • Data Points: 74 AIS positions
  • Period: 2026-02-17T17:41:34+00:00 to 2026-02-18T00:16:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 395.3999999999999772626324556767940521240234375,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-02-17T17:41:34+00:00",
        "lat": 37.009264999999999190549715422093868255615234375,
        "lon": 23.202220000000000510453901370055973529815673828125
    },
    "last_point": {
        "ts": "2026-02-18T00:16:55+00:00",
        "lat": 36.94093170000000014852048479951918125152587890625,
        "lon": 23.28775329999999854635461815632879734039306640625
    }
}
Methodology: 2026.01.18
Loiter Laconian Gulf STS Zone
Feb 17, 2026 16:44 UTC 75.0%
  • Duration: 1h 30m
  • Radius: 1,159 meters
  • Data Points: 30 AIS positions
  • Centroid: 37.0097, 23.2006
  • Zone: Laconian Gulf STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1158.799999999999954525264911353588104248046875,
    "duration_minutes": 90.7999999999999971578290569595992565155029296875,
    "points": 30,
    "centroid": {
        "lat": 37.00974722999999499961631954647600650787353515625,
        "lon": 23.200602943333333172404309152625501155853271484375
    },
    "bbox": {
        "min_lat": 37.00536670000000327718225889839231967926025390625,
        "min_lon": 23.18968830000000025393092073500156402587890625,
        "max_lat": 37.0127667000000002417436917312443256378173828125,
        "max_lon": 23.21242170000000015761543181724846363067626953125
    },
    "zone_id": "osint_laconian_gulf"
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 16:00 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 35m
  • Data Points: 86 AIS positions
  • Period: 2026-02-17T16:51:44+00:00 to 2026-02-17T23:27:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 395.69999999999998863131622783839702606201171875,
    "points_in_zone": 86,
    "first_point": {
        "ts": "2026-02-17T16:51:44+00:00",
        "lat": 37.0129282999999986714101396501064300537109375,
        "lon": 23.18801330000000149311745190061628818511962890625
    },
    "last_point": {
        "ts": "2026-02-17T23:27:24+00:00",
        "lat": 36.95062169999999923675204627215862274169921875,
        "lon": 23.2782567000000000234649633057415485382080078125
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Laconian Gulf STS Zone
Feb 17, 2026 16:00 UTC 73/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9448487 (GAZ FRATERNITY) Panama
  • Minimum Distance: 8 meters
  • Average Distance: 91 meters
  • Duration: 1h 29m
  • Period: 2026-02-17T16:00:44+00:00 to 2026-02-17T17:30:35+00:00
  • Vessel A Avg Speed: 0.8 knots
  • Vessel B Avg Speed: 0.7 knots
  • Zone: Laconian Gulf STS Zone

Confidence Analysis

Score: 73/100

Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 8m, avg 91m) for 90 minutes. Both vessels were slow-moving (avg speeds 0.8 and 0.7 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 8m, avg 91m
Duration15/25Duration 90 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency8/15Distance variance ±76m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Laconian Gulf STS Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-17T22:45:08.649170+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 372668000,
        "imo": 9448487,
        "name": "GAZ FRATERNITY",
        "flag": "Panama"
    },
    "min_distance_m": 7.79999999999999982236431605997495353221893310546875,
    "avg_distance_m": 91.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 75.900000000000005684341886080801486968994140625,
    "duration_minutes": 89.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 5391,
    "speed_a_avg": 0.770000000000000017763568394002504646778106689453125,
    "speed_a_std": 0.34999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.729999999999999982236431605997495353221893310546875,
    "speed_b_std": 0.35999999999999998667732370449812151491641998291015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.770000000000000017763568394002504646778106689453125,
            "max_sog": 1.1999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.729999999999999982236431605997495353221893310546875,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-02-17T16:00:44+00:00",
        "end": "2026-02-17T17:30:35+00:00"
    },
    "points_count": {
        "vessel_a": 35,
        "vessel_b": 35
    },
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "score": {
        "value": 73,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 8m, avg 91m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 90 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b176m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Laconian Gulf STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 8m, avg 91m) for 90 minutes. Both vessels were slow-moving (avg speeds 0.8 and 0.7 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.012458199999997532358975149691104888916015625,
            "lon": 23.18687909999999874344212003052234649658203125
        },
        "time_window": {
            "start_ts": "2026-02-17T16:00:44+00:00",
            "end_ts": "2026-02-17T17:30:35+00:00"
        },
        "searched_at": "2026-02-17T22:45:08.649170+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Laconian Gulf STS Zone
Feb 17, 2026 15:10 UTC 83/100
Vessel A: IMO 9572563 (GAZ HORIZON) Marshall Is
Vessel B: IMO 9448487 (GAZ FRATERNITY) Panama
  • Minimum Distance: 8 meters
  • Average Distance: 85 meters
  • Duration: 2h 19m
  • Period: 2026-02-17T15:10:45+00:00 to 2026-02-17T17:30:35+00:00
  • Vessel A Avg Speed: 0.7 knots
  • Vessel B Avg Speed: 0.6 knots
  • Zone: Laconian Gulf STS Zone

Confidence Analysis

Score: 83/100

High-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 8m, avg 85m) for 140 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.6 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 8m, avg 85m
Duration25/25Duration 140 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency8/15Distance variance ±70m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Laconian Gulf STS Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-17T21:45:11.349171+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007915,
        "imo": 9572563,
        "name": "GAZ HORIZON",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 372668000,
        "imo": 9448487,
        "name": "GAZ FRATERNITY",
        "flag": "Panama"
    },
    "min_distance_m": 7.79999999999999982236431605997495353221893310546875,
    "avg_distance_m": 84.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 70.2000000000000028421709430404007434844970703125,
    "duration_minutes": 139.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 8390,
    "speed_a_avg": 0.66000000000000003108624468950438313186168670654296875,
    "speed_a_std": 0.35999999999999998667732370449812151491641998291015625,
    "speed_b_avg": 0.60999999999999998667732370449812151491641998291015625,
    "speed_b_std": 0.36999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.66000000000000003108624468950438313186168670654296875,
            "max_sog": 1.1999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.60999999999999998667732370449812151491641998291015625,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-02-17T15:10:45+00:00",
        "end": "2026-02-17T17:30:35+00:00"
    },
    "points_count": {
        "vessel_a": 50,
        "vessel_b": 50
    },
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 8m, avg 85m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 140 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b170m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Laconian Gulf STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GAZ HORIZON and GAZ FRATERNITY) maintained close proximity (min 8m, avg 85m) for 140 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.6 knots). Moderate distance variation observed during the encounter. Event occurred in Laconian Gulf STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.01261360000000166792233358137309551239013671875,
            "lon": 23.183752399999999482815837836824357509613037109375
        },
        "time_window": {
            "start_ts": "2026-02-17T15:10:45+00:00",
            "end_ts": "2026-02-17T17:30:35+00:00"
        },
        "searched_at": "2026-02-17T21:45:11.349171+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Laconian Gulf STS Zone
Feb 17, 2026 15:03 UTC 80.0%
  • Zone: Laconian Gulf STS Zone
  • Duration: 6h 28m
  • Data Points: 96 AIS positions
  • Period: 2026-02-17T15:53:05+00:00 to 2026-02-17T22:21:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_laconian_gulf",
    "zone_name": "Laconian Gulf STS Zone",
    "dwell_minutes": 388.6000000000000227373675443232059478759765625,
    "points_in_zone": 96,
    "first_point": {
        "ts": "2026-02-17T15:53:05+00:00",
        "lat": 37.0119832999999971434590406715869903564453125,
        "lon": 23.178373300000000512000042363069951534271240234375
    },
    "last_point": {
        "ts": "2026-02-17T22:21:44+00:00",
        "lat": 36.96891329999999697974999435245990753173828125,
        "lon": 23.2621816999999992958692018873989582061767578125
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Jun 6 06:52 32.7683 31.2058 13.6 kn 229.5° Black Sea Sanctioned Vessel Monitoring Zone
Jun 6 06:45 32.7837 31.2263 13.5 kn 229.1° Black Sea Sanctioned Vessel Monitoring Zone
Jun 5 19:28 34.2292 33.5691 12.7 kn 236.7° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:27 34.2312 33.5727 12.7 kn 236.9° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:23 34.2388 33.5868 12.6 kn 238.9° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:19 34.2451 33.5982 12.9 kn 236.7° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:18 34.2471 33.6019 12.9 kn 237.6° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:16 34.2512 33.6097 12.9 kn 236.6° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:14 34.2550 33.6169 12.9 kn 237.2° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:13 34.2569 33.6206 12.8 kn 237.7° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:12 34.2591 33.6247 12.8 kn 238.1° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:11 34.2614 33.6291 12.8 kn 237.3° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:08 34.2670 33.6399 12.8 kn 237.5° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:05 34.2730 33.6515 12.9 kn 238.0° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:02 34.2791 33.6631 13.0 kn 237.3° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:01 34.2811 33.6668 13.0 kn 237.4° Southern Black Sea Sanctioned Vessel Zone
Jun 5 19:00 34.2830 33.6706 13.0 kn 238.7° Southern Black Sea Sanctioned Vessel Zone
Jun 5 18:56 34.2888 33.6817 13.1 kn 238.1° Southern Black Sea Sanctioned Vessel Zone
Jun 5 18:55 34.2907 33.6854 13.1 kn 237.8° Southern Black Sea Sanctioned Vessel Zone
Jun 5 18:54 34.2926 33.6892 13.0 kn 238.0° Southern Black Sea Sanctioned Vessel Zone

Showing 20 of 100 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.