HISTRIA ATLAS

{
    "vessel_a": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 123.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 163.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 39.60000000000000142108547152020037174224853515625,
    "duration_minutes": 49.39999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2962,
    "speed_a_avg": 0.450000000000000011102230246251565404236316680908203125,
    "speed_a_std": 0.7199999999999999733546474089962430298328399658203125,
    "speed_b_avg": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.450000000000000011102230246251565404236316680908203125,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.2800000000000000266453525910037569701671600341796875,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-03-13T02:04:08+00:00",
        "end": "2026-03-13T02:53:30+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 66,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 124m, avg 163m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 49 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b140m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 163m) for 49 minutes. Both vessels were slow-moving (avg speeds 0.5 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.7073989000000011628799256868660449981689453125,
            "lon": 33.319389000000001033185981214046478271484375
        },
        "time_window": {
            "start_ts": "2026-03-13T02:04:08+00:00",
            "end_ts": "2026-03-13T02:53:30+00:00"
        },
        "searched_at": "2026-03-13T08:45:14.349446+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212245_thumbnail_20260313084517.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212245_thumbnail_20260313084517.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Mar 13, 2026 02:03 UTC 60/100 ▼

Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 303 meters
Average Distance: 310 meters
Duration: 39 minutes
Period: 2026-03-13T02:03:51+00:00 to 2026-03-13T02:42:50+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.1 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 60/100

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

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 303m, avg 310m
Duration	5/25	Duration 39 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

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

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

Sts🛰️✗ Eastern Mediterranean Monitoring Zone

Mar 13, 2026 01:27 UTC 70/100 ▼

Vessel A: IMO 9723007 (ALDEBARAN) Bahamas

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 322 meters
Average Distance: 328 meters
Duration: 1h 6m
Period: 2026-03-13T01:27:56+00:00 to 2026-03-13T02:33:57+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 328m) for 66 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 322m, avg 328m
Duration	15/25	Duration 66 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T07:45:01.534411+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 322.3999999999999772626324556767940521240234375,
    "avg_distance_m": 327.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 66,
    "overlap_duration_s": 3961,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-03-13T01:27:56+00:00",
        "end": "2026-03-13T02:33:57+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 322m, avg 328m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 66 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 328m) for 66 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70892409999999728142938693054020404815673828125,
            "lon": 33.321556700000002138040144927799701690673828125
        },
        "time_window": {
            "start_ts": "2026-03-13T01:27:56+00:00",
            "end_ts": "2026-03-13T02:33:57+00:00"
        },
        "searched_at": "2026-03-13T07:45:01.534411+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Monitoring Zone

Mar 13, 2026 01:05 UTC 75/100 ▼

Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 303 meters
Average Distance: 310 meters
Duration: 1h 37m
Period: 2026-03-13T01:05:11+00:00 to 2026-03-13T02:42:50+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 75/100

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

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 303m, avg 310m
Duration	20/25	Duration 98 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

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

Show Raw Evidence JSON

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

Methodology: 2026.01.18

Sts🛰️? Eastern Mediterranean Monitoring Zone

Mar 13, 2026 01:04 UTC 79/100 ▼

Vessel A: IMO 9800790 (HISTRIA ATLAS) Liberia

Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA

Minimum Distance: 124 meters
Average Distance: 158 meters
Duration: 1h 49m
Period: 2026-03-13T01:04:08+00:00 to 2026-03-13T02:53:30+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.3 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 79/100

Moderate-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 158m) for 109 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	20/25	Min distance 124m, avg 158m
Duration	20/25	Duration 109 minutes
Speed Stability	14/20	both nearly stationary; somewhat variable speeds
Distance Consistency	15/15	Distance variance ±29m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-03-13T08:00:04.651167+00:00

{
    "vessel_a": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 123.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 157.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 28.699999999999999289457264239899814128875732421875,
    "duration_minutes": 109.400000000000005684341886080801486968994140625,
    "overlap_duration_s": 6562,
    "speed_a_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_a_std": 0.560000000000000053290705182007513940334320068359375,
    "speed_b_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T01:04:08+00:00",
        "end": "2026-03-13T02:53:30+00:00"
    },
    "points_count": {
        "vessel_a": 31,
        "vessel_b": 31
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 79,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 124m, avg 158m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 109 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b129m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 158m) for 109 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.707471400000002859087544493377208709716796875,
            "lon": 33.31954110000000213176463148556649684906005859375
        },
        "time_window": {
            "start_ts": "2026-03-13T01:04:08+00:00",
            "end_ts": "2026-03-13T02:53:30+00:00"
        },
        "searched_at": "2026-03-13T08:00:04.651167+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212061_thumbnail_20260313080009.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_212061_thumbnail_20260313080009.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Mar 13, 2026 00:04 UTC 87/100 ▼

Vessel A: IMO 9800790 (HISTRIA ATLAS) Liberia

Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA

Minimum Distance: 124 meters
Average Distance: 157 meters
Duration: 2h 49m
Period: 2026-03-13T00:04:07+00:00 to 2026-03-13T02:53:30+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.3 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 87/100

High-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 157m) for 169 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	20/25	Min distance 124m, avg 157m
Duration	25/25	Duration 169 minutes
Speed Stability	17/20	both nearly stationary; stable speeds
Distance Consistency	15/15	Distance variance ±23m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-03-13T07:00:06.684961+00:00

{
    "vessel_a": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 123.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 156.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 23.199999999999999289457264239899814128875732421875,
    "duration_minutes": 169.400000000000005684341886080801486968994140625,
    "overlap_duration_s": 10163,
    "speed_a_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_a_std": 0.460000000000000019984014443252817727625370025634765625,
    "speed_b_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_std": 0.2200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-13T00:04:07+00:00",
        "end": "2026-03-13T02:53:30+00:00"
    },
    "points_count": {
        "vessel_a": 47,
        "vessel_b": 47
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 87,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 124m, avg 157m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 169 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b123m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 157m) for 169 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.7075037999999977955667418427765369415283203125,
            "lon": 33.31959549999999836700226296670734882354736328125
        },
        "time_window": {
            "start_ts": "2026-03-13T00:04:07+00:00",
            "end_ts": "2026-03-13T02:53:30+00:00"
        },
        "searched_at": "2026-03-13T07:00:06.684961+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211886_thumbnail_20260313070010.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211886_thumbnail_20260313070010.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Mar 13, 2026 00:03 UTC 80/100 ▼

Vessel A: IMO 9723007 (ALDEBARAN) Bahamas

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 322 meters
Average Distance: 328 meters
Duration: 2h 30m
Period: 2026-03-13T00:03:56+00:00 to 2026-03-13T02:33:57+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 328m) for 150 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 322m, avg 328m
Duration	25/25	Duration 150 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-03-13T06:30:11.685209+00:00

{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 322.3999999999999772626324556767940521240234375,
    "avg_distance_m": 327.5,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 150,
    "overlap_duration_s": 9001,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-03-13T00:03:56+00:00",
        "end": "2026-03-13T02:33:57+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 322m, avg 328m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 150 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 328m) for 150 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70893439999999685596776544116437435150146484375,
            "lon": 33.32155139999999704514266340993344783782958984375
        },
        "time_window": {
            "start_ts": "2026-03-13T00:03:56+00:00",
            "end_ts": "2026-03-13T02:33:57+00:00"
        },
        "searched_at": "2026-03-13T06:30:11.685209+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211740_thumbnail_20260313063016.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211740_thumbnail_20260313063016.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Mar 13, 2026 00:02 UTC 80/100 ▼

Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 303 meters
Average Distance: 310 meters
Duration: 2h 40m
Period: 2026-03-13T00:02:12+00:00 to 2026-03-13T02:42:50+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

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

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 303m, avg 310m
Duration	25/25	Duration 161 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

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

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

Mar 12, 2026 23:09 UTC 80/100 ▼

Vessel A: IMO 9723007 (ALDEBARAN) Bahamas

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 322 meters
Average Distance: 328 meters
Duration: 3h 24m
Period: 2026-03-12T23:09:56+00:00 to 2026-03-13T02:33:57+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 328m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 322m, avg 328m
Duration	25/25	Duration 204 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-03-13T05:45:01.304438+00:00

{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 321.5,
    "avg_distance_m": 327.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 4.5,
    "duration_minutes": 204,
    "overlap_duration_s": 12241,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-03-12T23:09:56+00:00",
        "end": "2026-03-13T02:33:57+00:00"
    },
    "points_count": {
        "vessel_a": 17,
        "vessel_b": 17
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 322m, avg 328m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 204 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 328m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.708940200000000686486600898206233978271484375,
            "lon": 33.32154919999999975743776303716003894805908203125
        },
        "time_window": {
            "start_ts": "2026-03-12T23:09:56+00:00",
            "end_ts": "2026-03-13T02:33:57+00:00"
        },
        "searched_at": "2026-03-13T05:45:01.304438+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211553_thumbnail_20260313054506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211553_thumbnail_20260313054506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Sts🛰️✗ Eastern Mediterranean Monitoring Zone

Mar 12, 2026 23:07 UTC 87/100 ▼

Vessel A: IMO 9800790 (HISTRIA ATLAS) Liberia

Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA

Minimum Distance: 124 meters
Average Distance: 156 meters
Duration: 3h 46m
Period: 2026-03-12T23:07:08+00:00 to 2026-03-13T02:53:30+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.3 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 87/100

High-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 156m) for 226 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	20/25	Min distance 124m, avg 156m
Duration	25/25	Duration 226 minutes
Speed Stability	17/20	both nearly stationary; stable speeds
Distance Consistency	15/15	Distance variance ±20m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-03-13T05:45:18.882595+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 123.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 156,
    "distance_consistency_m": 20.300000000000000710542735760100185871124267578125,
    "duration_minutes": 226.400000000000005684341886080801486968994140625,
    "overlap_duration_s": 13582,
    "speed_a_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_a_std": 0.40000000000000002220446049250313080847263336181640625,
    "speed_b_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-12T23:07:08+00:00",
        "end": "2026-03-13T02:53:30+00:00"
    },
    "points_count": {
        "vessel_a": 62,
        "vessel_b": 62
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 87,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 124m, avg 156m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 226 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b120m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 156m) for 226 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7075157000000018570062820799648761749267578125,
            "lon": 33.31962039999999802830643602646887302398681640625
        },
        "time_window": {
            "start_ts": "2026-03-12T23:07:08+00:00",
            "end_ts": "2026-03-13T02:53:30+00:00"
        },
        "searched_at": "2026-03-13T05:45:18.882595+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Monitoring Zone

Mar 12, 2026 23:02 UTC 80/100 ▼

Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 303 meters
Average Distance: 310 meters
Duration: 3h 40m
Period: 2026-03-12T23:02:16+00:00 to 2026-03-13T02:42:50+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

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

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 303m, avg 310m
Duration	25/25	Duration 221 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

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

Show Raw Evidence JSON

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

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Monitoring Zone

Mar 12, 2026 23:01 UTC 80.0% ▼

Zone: Eastern Mediterranean Monitoring Zone
Duration: 6h 29m
Data Points: 149 AIS positions
Period: 2026-03-12T23:01:10+00:00 to 2026-03-13T05:30:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "dwell_minutes": 389.6000000000000227373675443232059478759765625,
    "points_in_zone": 149,
    "first_point": {
        "ts": "2026-03-12T23:01:10+00:00",
        "lat": 34.7082300000000003592504072003066539764404296875,
        "lon": 33.3200199999999995270627550780773162841796875
    },
    "last_point": {
        "ts": "2026-03-13T05:30:48+00:00",
        "lat": 34.46666499999999899728209129534661769866943359375,
        "lon": 33.8149532999999991034201229922473430633544921875
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Monitoring Zone

Mar 12, 2026 23:01 UTC 75.0% ▼

Duration: 3h 58m
Radius: 1,034 meters
Data Points: 66 AIS positions
Centroid: 34.7079, 33.3195
Zone: Eastern Mediterranean Monitoring Zone

Show Raw Evidence JSON

{
    "radius_m": 1034.200000000000045474735088646411895751953125,
    "duration_minutes": 238.69999999999998863131622783839702606201171875,
    "points": 66,
    "centroid": {
        "lat": 34.7079347015151569166846456937491893768310546875,
        "lon": 33.31952250000000503860064782202243804931640625
    },
    "bbox": {
        "min_lat": 34.7020432999999997036866261623799800872802734375,
        "min_lon": 33.31077330000000102927515399642288684844970703125,
        "max_lat": 34.7082716999999973950252751819789409637451171875,
        "max_lon": 33.32009330000000346672095474787056446075439453125
    },
    "zone_id": "discovered_037"
}

Methodology: 2026.01.18

Sts🛰️? Eastern Mediterranean Monitoring Zone

Mar 12, 2026 22:21 UTC 80/100 ▼

Vessel A: IMO 9723007 (ALDEBARAN) Bahamas

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 322 meters
Average Distance: 327 meters
Duration: 4h 12m
Period: 2026-03-12T22:21:57+00:00 to 2026-03-13T02:33:57+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 327m) for 252 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	10/25	Min distance 322m, avg 327m
Duration	25/25	Duration 252 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-03-13T05:00:01.310740+00:00

{
    "vessel_a": {
        "mmsi": 311000232,
        "imo": 9723007,
        "name": "ALDEBARAN",
        "flag": "Bahamas"
    },
    "vessel_b": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "min_distance_m": 321.5,
    "avg_distance_m": 327.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 252,
    "overlap_duration_s": 15120,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-03-12T22:21:57+00:00",
        "end": "2026-03-13T02:33:57+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 322m, avg 327m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 252 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALDEBARAN and HISTRIA ATLAS) maintained close proximity (min 322m, avg 327m) for 252 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70894340000000255486156675033271312713623046875,
            "lon": 33.32154659999999779529389343224465847015380859375
        },
        "time_window": {
            "start_ts": "2026-03-12T22:21:57+00:00",
            "end_ts": "2026-03-13T02:33:57+00:00"
        },
        "searched_at": "2026-03-13T05:00:01.310740+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211511_thumbnail_20260313050005.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211511_thumbnail_20260313050005.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Mar 12, 2026 22:07 UTC 87/100 ▼

Vessel A: IMO 9800790 (HISTRIA ATLAS) Liberia

Vessel B: IMO 9259290 (ELKA DELOS) LIBERIA

Minimum Distance: 124 meters
Average Distance: 156 meters
Duration: 4h 46m
Period: 2026-03-12T22:07:07+00:00 to 2026-03-13T02:53:30+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.3 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 87/100

High-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 156m) for 286 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	20/25	Min distance 124m, avg 156m
Duration	25/25	Duration 286 minutes
Speed Stability	17/20	both nearly stationary; stable speeds
Distance Consistency	15/15	Distance variance ±18m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-03-13T04:45:17.553438+00:00

{
    "vessel_a": {
        "mmsi": 636019212,
        "imo": 9800790,
        "name": "HISTRIA ATLAS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636020277,
        "imo": 9259290,
        "name": "ELKA DELOS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 123.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 156,
    "distance_consistency_m": 18,
    "duration_minutes": 286.3999999999999772626324556767940521240234375,
    "overlap_duration_s": 17183,
    "speed_a_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_a_std": 0.35999999999999998667732370449812151491641998291015625,
    "speed_b_avg": 0.289999999999999980015985556747182272374629974365234375,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.289999999999999980015985556747182272374629974365234375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-03-12T22:07:07+00:00",
        "end": "2026-03-13T02:53:30+00:00"
    },
    "points_count": {
        "vessel_a": 79,
        "vessel_b": 79
    },
    "zone_id": "discovered_037",
    "zone_name": "Istanbul Black Sea Surveillance Zone",
    "score": {
        "value": 87,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 124m, avg 156m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 286 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b118m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Istanbul Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA ATLAS and ELKA DELOS) maintained close proximity (min 124m, avg 156m) for 286 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Istanbul Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 34.70752499999999685087459511123597621917724609375,
            "lon": 33.31964020000000203935996978543698787689208984375
        },
        "time_window": {
            "start_ts": "2026-03-12T22:07:07+00:00",
            "end_ts": "2026-03-13T02:53:30+00:00"
        },
        "searched_at": "2026-03-13T04:45:17.553438+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG",
        "scene_datetime": "2026-03-12T15:40:28.859639Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 33.14670600000000177942638401873409748077392578125,
            "min_lat": 33.42395400000000194040694623254239559173583984375,
            "max_lon": 36.2533949999999975943865138106048107147216796875,
            "max_lat": 35.338222999999999274223227985203266143798828125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211510_thumbnail_20260313044520.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/03\/event_211510_thumbnail_20260313044520.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Mar 12, 2026 22:02 UTC 85/100 ▼

Vessel A: IMO 9849382 (CLEAROCEAN MAGIC) Liberia

Vessel B: IMO 9800790 (HISTRIA ATLAS) Liberia

Minimum Distance: 298 meters
Average Distance: 309 meters
Duration: 4h 40m
Period: 2026-03-12T22:02:12+00:00 to 2026-03-13T02:42:50+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Eastern Mediterranean Monitoring Zone

Confidence Analysis

Score: 85/100

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

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 298m, avg 309m
Duration	25/25	Duration 281 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Istanbul Black Sea Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260312T154028_20260312T154053_006733_00D993_C587_COG • Acquired: 2026-03-12T15:40:28.859639Z • Platform: sentinel-1c

Click image to view full size

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

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