IMO 8411463
Vessel information
Detected Events (100)
- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 5m
- Data Points: 2 AIS positions
- Period: 2026-09-22T08:24:54+00:00 to 2026-09-22T09:30:43+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 65.7999999999999971578290569595992565155029296875,
"points_in_zone": 2,
"first_point": {
"ts": "2026-09-22T08:24:54+00:00",
"lat": 59.8817432999999965659299050457775592803955078125,
"lon": 30.22701670000000007121343514882028102874755859375
},
"last_point": {
"ts": "2026-09-22T09:30:43+00:00",
"lat": 59.88145670000000109212123788893222808837890625,
"lon": 30.225404999999998523207977996207773685455322265625
}
}- Minimum Distance: 43 meters
- Average Distance: 46 meters
- Duration: 1h 22m
- Period: 2026-09-11T07:50:02+00:00 to 2026-09-11T09:12:43+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 43m, avg 46m) for 83 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 43m, avg 46m |
| Duration | 15/25 | Duration 83 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±5m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 42.89999999999999857891452847979962825775146484375,
"avg_distance_m": 46.39999999999999857891452847979962825775146484375,
"distance_consistency_m": 5,
"duration_minutes": 82.7000000000000028421709430404007434844970703125,
"overlap_duration_s": 4961,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
"speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
"max_sog": 0.200000000000000011102230246251565404236316680908203125
}
},
"time_window": {
"start": "2026-09-11T07:50:02+00:00",
"end": "2026-09-11T09:12:43+00:00"
},
"points_count": {
"vessel_a": 2,
"vessel_b": 2
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 85,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 43m, avg 46m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 83 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b15m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 43m, avg 46m) for 83 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88206619999999702486093156039714813232421875,
"lon": 30.22454499999999910642145550809800624847412109375
},
"time_window": {
"start_ts": "2026-09-11T07:50:02+00:00",
"end_ts": "2026-09-11T09:12:43+00:00"
},
"searched_at": "2026-09-11T14:00:01.501411+00:00",
"scene_id": "S1D_IW_GRDH_1SDV_20260911T041654_20260911T041719_004525_008698_445D_COG",
"scene_datetime": "2026-09-11T04:16:54.189054Z",
"platform": "sentinel-1d",
"bbox": {
"min_lon": 28.508818000000001546823114040307700634002685546875,
"min_lat": 58.783062000000001035004970617592334747314453125,
"max_lon": 33.72784399999999749297785456292331218719482421875,
"max_lat": 60.70935399999999759756974526681005954742431640625
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1273530_thumbnail_20260911140006.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1273530_thumbnail_20260911140006.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 48m
- Data Points: 4 AIS positions
- Period: 2026-09-11T07:19:03+00:00 to 2026-09-11T10:07:12+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 168.19999999999998863131622783839702606201171875,
"points_in_zone": 4,
"first_point": {
"ts": "2026-09-11T07:19:03+00:00",
"lat": 59.88196330000000244808688876219093799591064453125,
"lon": 30.224855000000001581383912707678973674774169921875
},
"last_point": {
"ts": "2026-09-11T10:07:12+00:00",
"lat": 59.882076699999998936618794687092304229736328125,
"lon": 30.2247966999999988502167980186641216278076171875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 3h 28m
- Data Points: 5 AIS positions
- Period: 2026-09-11T06:38:22+00:00 to 2026-09-11T10:07:12+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 208.80000000000001136868377216160297393798828125,
"points_in_zone": 5,
"first_point": {
"ts": "2026-09-11T06:38:22+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.224818299999999027249941718764603137969970703125
},
"last_point": {
"ts": "2026-09-11T10:07:12+00:00",
"lat": 59.882076699999998936618794687092304229736328125,
"lon": 30.2247966999999988502167980186641216278076171875
}
}- Minimum Distance: 43 meters
- Average Distance: 47 meters
- Duration: 2h 34m
- Period: 2026-09-11T06:38:22+00:00 to 2026-09-11T09:12:43+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 43m, avg 47m) for 154 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 43m, avg 47m |
| Duration | 25/25 | Duration 154 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: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 42.89999999999999857891452847979962825775146484375,
"avg_distance_m": 47,
"distance_consistency_m": 3.899999999999999911182158029987476766109466552734375,
"duration_minutes": 154.30000000000001136868377216160297393798828125,
"overlap_duration_s": 9261,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.200000000000000011102230246251565404236316680908203125,
"speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.200000000000000011102230246251565404236316680908203125,
"max_sog": 0.40000000000000002220446049250313080847263336181640625
}
},
"time_window": {
"start": "2026-09-11T06:38:22+00:00",
"end": "2026-09-11T09:12:43+00:00"
},
"points_count": {
"vessel_a": 4,
"vessel_b": 4
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 43m, avg 47m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 154 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 43m, avg 47m) for 154 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88208519999999879246388445608317852020263671875,
"lon": 30.224553799999998915382093400694429874420166015625
},
"time_window": {
"start_ts": "2026-09-11T06:38:22+00:00",
"end_ts": "2026-09-11T09:12:43+00:00"
},
"searched_at": "2026-09-11T12:15:01.728245+00:00",
"scene_id": "S1D_IW_GRDH_1SDV_20260911T041654_20260911T041719_004525_008698_445D_COG",
"scene_datetime": "2026-09-11T04:16:54.189054Z",
"platform": "sentinel-1d",
"bbox": {
"min_lon": 28.508818000000001546823114040307700634002685546875,
"min_lat": 58.783062000000001035004970617592334747314453125,
"max_lon": 33.72784399999999749297785456292331218719482421875,
"max_lat": 60.70935399999999759756974526681005954742431640625
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1272856_thumbnail_20260911121509.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1272856_thumbnail_20260911121509.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Minimum Distance: 23 meters
- Average Distance: 26 meters
- Duration: 1h 12m
- Period: 2026-09-07T02:11:13+00:00 to 2026-09-07T03:23:34+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.3 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 22m, avg 26m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 22m, avg 26m |
| Duration | 15/25 | Duration 72 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: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 22.5,
"avg_distance_m": 25.800000000000000710542735760100185871124267578125,
"distance_consistency_m": 3,
"duration_minutes": 72.2999999999999971578290569595992565155029296875,
"overlap_duration_s": 4341,
"speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
"speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
"speed_b_avg": 0.330000000000000015543122344752191565930843353271484375,
"speed_b_std": 0.1499999999999999944488848768742172978818416595458984375,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0.330000000000000015543122344752191565930843353271484375,
"max_sog": 0.5
}
},
"time_window": {
"start": "2026-09-07T02:11:13+00:00",
"end": "2026-09-07T03:23:34+00:00"
},
"points_count": {
"vessel_a": 6,
"vessel_b": 6
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 85,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 22m, avg 26m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 72 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b13m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 22m, avg 26m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 12m
- Data Points: 6 AIS positions
- Period: 2026-09-07T02:11:13+00:00 to 2026-09-07T03:23:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 72.2999999999999971578290569595992565155029296875,
"points_in_zone": 6,
"first_point": {
"ts": "2026-09-07T02:11:13+00:00",
"lat": 59.88195499999999782403392600826919078826904296875,
"lon": 30.22472330000000084737621364183723926544189453125
},
"last_point": {
"ts": "2026-09-07T03:23:34+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.224838299999998270095602492801845073699951171875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 27m
- Data Points: 7 AIS positions
- Period: 2026-09-07T01:56:22+00:00 to 2026-09-07T03:23:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 87.2000000000000028421709430404007434844970703125,
"points_in_zone": 7,
"first_point": {
"ts": "2026-09-07T01:56:22+00:00",
"lat": 59.8819783000000001038642949424684047698974609375,
"lon": 30.224786699999999228793967631645500659942626953125
},
"last_point": {
"ts": "2026-09-07T03:23:34+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.224838299999998270095602492801845073699951171875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 41m
- Data Points: 8 AIS positions
- Period: 2026-09-07T00:42:13+00:00 to 2026-09-07T03:23:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 161.30000000000001136868377216160297393798828125,
"points_in_zone": 8,
"first_point": {
"ts": "2026-09-07T00:42:13+00:00",
"lat": 59.88195999999999941110218060202896595001220703125,
"lon": 30.22485830000000106565494206734001636505126953125
},
"last_point": {
"ts": "2026-09-07T03:23:34+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.224838299999998270095602492801845073699951171875
}
}- Minimum Distance: 15 meters
- Average Distance: 16 meters
- Duration: 2h 40m
- Period: 2026-09-06T22:01:42+00:00 to 2026-09-07T00:42:13+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 15m, avg 16m) for 160 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 15m, avg 16m |
| Duration | 25/25 | Duration 160 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
No satellite imagery for this time/location
No Sentinel-1 scenes covering AOI and time window
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 14.9000000000000003552713678800500929355621337890625,
"avg_distance_m": 16.199999999999999289457264239899814128875732421875,
"distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
"duration_minutes": 160.5,
"overlap_duration_s": 9631,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
"speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
"max_sog": 0.200000000000000011102230246251565404236316680908203125
}
},
"time_window": {
"start": "2026-09-06T22:01:42+00:00",
"end": "2026-09-07T00:42:13+00:00"
},
"points_count": {
"vessel_a": 2,
"vessel_b": 2
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 15m, avg 16m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 160 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 15m, avg 16m) for 160 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 59.882027899999997089253156445920467376708984375,
"lon": 30.22486539999999877181835472583770751953125
},
"time_window": {
"start_ts": "2026-09-06T22:01:42+00:00",
"end_ts": "2026-09-07T00:42:13+00:00"
},
"searched_at": "2026-09-07T01:15:01.637600+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 21m
- Data Points: 9 AIS positions
- Period: 2026-09-06T22:01:42+00:00 to 2026-09-07T03:23:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 321.8999999999999772626324556767940521240234375,
"points_in_zone": 9,
"first_point": {
"ts": "2026-09-06T22:01:42+00:00",
"lat": 59.88196330000000244808688876219093799591064453125,
"lon": 30.224765000000001435864760424010455608367919921875
},
"last_point": {
"ts": "2026-09-07T03:23:34+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.224838299999998270095602492801845073699951171875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6 hours
- Data Points: 10 AIS positions
- Period: 2026-09-06T21:23:03+00:00 to 2026-09-07T03:23:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 360.5,
"points_in_zone": 10,
"first_point": {
"ts": "2026-09-06T21:23:03+00:00",
"lat": 59.8819567000000034795448300428688526153564453125,
"lon": 30.224810000000001508624336565844714641571044921875
},
"last_point": {
"ts": "2026-09-07T03:23:34+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.224838299999998270095602492801845073699951171875
}
}- Duration: 6 hours
- Radius: 5 meters
- Data Points: 10 AIS positions
- Centroid: 59.8819, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 4.9000000000000003552713678800500929355621337890625,
"duration_minutes": 360.5,
"points": 10,
"centroid": {
"lat": 59.8819443400000039900987758301198482513427734375,
"lon": 30.224784329999994980653355014510452747344970703125
},
"bbox": {
"min_lat": 59.8819017000000002326487447135150432586669921875,
"min_lon": 30.22472330000000084737621364183723926544189453125,
"max_lat": 59.8819783000000001038642949424684047698974609375,
"max_lon": 30.22485830000000106565494206734001636505126953125
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 15 meters
- Average Distance: 20 meters
- Duration: 1h 7m
- Period: 2026-09-06T04:27:23+00:00 to 2026-09-06T05:34:23+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.1 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 15m, avg 20m) for 67 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 15m, avg 20m |
| Duration | 15/25 | Duration 67 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±5m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 15.199999999999999289457264239899814128875732421875,
"avg_distance_m": 19.89999999999999857891452847979962825775146484375,
"distance_consistency_m": 4.79999999999999982236431605997495353221893310546875,
"duration_minutes": 67,
"overlap_duration_s": 4020,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
"speed_b_std": 0.11000000000000000055511151231257827021181583404541015625,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.13000000000000000444089209850062616169452667236328125,
"max_sog": 0.299999999999999988897769753748434595763683319091796875
}
},
"time_window": {
"start": "2026-09-06T04:27:23+00:00",
"end": "2026-09-06T05:34:23+00:00"
},
"points_count": {
"vessel_a": 9,
"vessel_b": 9
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 85,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 15m, avg 20m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 67 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b15m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 15m, avg 20m) for 67 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 7m
- Data Points: 9 AIS positions
- Period: 2026-09-06T04:27:23+00:00 to 2026-09-06T05:34:23+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 67,
"points_in_zone": 9,
"first_point": {
"ts": "2026-09-06T04:27:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224754999999998261728251236490905284881591796875
},
"last_point": {
"ts": "2026-09-06T05:34:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224799999999998334487827378325164318084716796875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 34m
- Data Points: 12 AIS positions
- Period: 2026-09-06T03:00:23+00:00 to 2026-09-06T05:34:23+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 154,
"points_in_zone": 12,
"first_point": {
"ts": "2026-09-06T03:00:23+00:00",
"lat": 59.8819682999999969297277857549488544464111328125,
"lon": 30.22481499999999954297891235910356044769287109375
},
"last_point": {
"ts": "2026-09-06T05:34:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224799999999998334487827378325164318084716796875
}
}- Duration: 2h 34m
- Radius: 3 meters
- Data Points: 12 AIS positions
- Centroid: 59.8820, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 3.20000000000000017763568394002504646778106689453125,
"duration_minutes": 154,
"points": 12,
"centroid": {
"lat": 59.88195333333334247072343714535236358642578125,
"lon": 30.224786816666668443076559924520552158355712890625
},
"bbox": {
"min_lat": 59.8819299999999969941200106404721736907958984375,
"min_lon": 30.224754999999998261728251236490905284881591796875,
"max_lat": 59.8819816999999972040313878096640110015869140625,
"max_lon": 30.22482169999999968013071338646113872528076171875
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 66 meters
- Average Distance: 177 meters
- Duration: 33 minutes
- Period: 2026-09-06T02:34:44+00:00 to 2026-09-06T03:08:05+00:00
- Vessel A Avg Speed: 0.4 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (ORENBURG and ABIGAIL) maintained close proximity (min 66m, avg 177m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 66m, avg 177m |
| Duration | 5/25 | Duration 33 minutes |
| Speed Stability | 14/20 | both nearly stationary; somewhat variable speeds |
| Distance Consistency | 8/15 | Distance variance ±69m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273353580,
"imo": 9537109,
"name": "ORENBURG",
"flag": "Russia"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 65.7000000000000028421709430404007434844970703125,
"avg_distance_m": 176.69999999999998863131622783839702606201171875,
"distance_consistency_m": 69.2000000000000028421709430404007434844970703125,
"duration_minutes": 33.39999999999999857891452847979962825775146484375,
"overlap_duration_s": 2001,
"speed_a_avg": 0.409999999999999975575093458246556110680103302001953125,
"speed_a_std": 0.520000000000000017763568394002504646778106689453125,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.409999999999999975575093458246556110680103302001953125,
"max_sog": 1.3000000000000000444089209850062616169452667236328125
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-09-06T02:34:44+00:00",
"end": "2026-09-06T03:08:05+00:00"
},
"points_count": {
"vessel_a": 8,
"vessel_b": 8
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 62,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 66m, avg 177m"
},
"duration": {
"score": 5,
"max": 25,
"detail": "Duration 33 minutes"
},
"speed_stability": {
"score": 14,
"max": 20,
"detail": "both nearly stationary; somewhat variable speeds"
},
"distance_consistency": {
"score": 8,
"max": 15,
"detail": "Distance variance \u00b169m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (ORENBURG and ABIGAIL) maintained close proximity (min 66m, avg 177m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.882508500000000140062184073030948638916015625,
"lon": 30.2248905000000007703420124016702175140380859375
},
"time_window": {
"start_ts": "2026-09-06T02:34:44+00:00",
"end_ts": "2026-09-06T03:08:05+00:00"
},
"searched_at": "2026-09-06T03:45:01.935323+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG",
"scene_datetime": "2026-09-05T15:31:23.309243Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 28.99906899999999865258359932340681552886962890625,
"min_lat": 59.50836199999999820420271134935319423675537109375,
"max_lon": 34.32775500000000334921423927880823612213134765625,
"max_lat": 61.4367519999999984747773851267993450164794921875
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1223965_thumbnail_20260906034506.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1223965_thumbnail_20260906034506.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 3h 17m
- Data Points: 18 AIS positions
- Period: 2026-09-06T02:16:43+00:00 to 2026-09-06T05:34:23+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 197.69999999999998863131622783839702606201171875,
"points_in_zone": 18,
"first_point": {
"ts": "2026-09-06T02:16:43+00:00",
"lat": 59.88192500000000251247911364771425724029541015625,
"lon": 30.224765000000001435864760424010455608367919921875
},
"last_point": {
"ts": "2026-09-06T05:34:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224799999999998334487827378325164318084716796875
}
}- Duration: 3h 17m
- Radius: 3 meters
- Data Points: 18 AIS positions
- Centroid: 59.8820, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 3.29999999999999982236431605997495353221893310546875,
"duration_minutes": 197.69999999999998863131622783839702606201171875,
"points": 18,
"centroid": {
"lat": 59.88195194999999415585989481769502162933349609375,
"lon": 30.224783338888887129769500461407005786895751953125
},
"bbox": {
"min_lat": 59.88192500000000251247911364771425724029541015625,
"min_lon": 30.224754999999998261728251236490905284881591796875,
"max_lat": 59.8819816999999972040313878096640110015869140625,
"max_lon": 30.22482169999999968013071338646113872528076171875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 4h 27m
- Data Points: 20 AIS positions
- Period: 2026-09-06T01:07:12+00:00 to 2026-09-06T05:34:23+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 267.19999999999998863131622783839702606201171875,
"points_in_zone": 20,
"first_point": {
"ts": "2026-09-06T01:07:12+00:00",
"lat": 59.88195830000000086101863416843116283416748046875,
"lon": 30.224855000000001581383912707678973674774169921875
},
"last_point": {
"ts": "2026-09-06T05:34:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224799999999998334487827378325164318084716796875
}
}- Duration: 4h 27m
- Radius: 4 meters
- Data Points: 20 AIS positions
- Centroid: 59.8820, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 3.899999999999999911182158029987476766109466552734375,
"duration_minutes": 267.19999999999998863131622783839702606201171875,
"points": 20,
"centroid": {
"lat": 59.8819526699999897800807957537472248077392578125,
"lon": 30.2247865049999973052763380110263824462890625
},
"bbox": {
"min_lat": 59.88192500000000251247911364771425724029541015625,
"min_lon": 30.224754999999998261728251236490905284881591796875,
"max_lat": 59.8819816999999972040313878096640110015869140625,
"max_lon": 30.224855000000001581383912707678973674774169921875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 21m
- Data Points: 22 AIS positions
- Period: 2026-09-06T00:12:42+00:00 to 2026-09-06T05:34:23+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 321.69999999999998863131622783839702606201171875,
"points_in_zone": 22,
"first_point": {
"ts": "2026-09-06T00:12:42+00:00",
"lat": 59.8819799999999986539478413760662078857421875,
"lon": 30.224786699999999228793967631645500659942626953125
},
"last_point": {
"ts": "2026-09-06T05:34:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224799999999998334487827378325164318084716796875
}
}- Duration: 5h 21m
- Radius: 9 meters
- Data Points: 22 AIS positions
- Centroid: 59.8820, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 8.800000000000000710542735760100185871124267578125,
"duration_minutes": 321.69999999999998863131622783839702606201171875,
"points": 22,
"centroid": {
"lat": 59.88195030454544820486262324266135692596435546875,
"lon": 30.22478477727272405672920285724103450775146484375
},
"bbox": {
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"max_lat": 59.8819816999999972040313878096640110015869140625,
"max_lon": 30.224855000000001581383912707678973674774169921875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 58m
- Data Points: 24 AIS positions
- Period: 2026-09-05T23:36:13+00:00 to 2026-09-06T05:34:23+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 358.19999999999998863131622783839702606201171875,
"points_in_zone": 24,
"first_point": {
"ts": "2026-09-05T23:36:13+00:00",
"lat": 59.881983300000001690932549536228179931640625,
"lon": 30.224779999999999091642166604287922382354736328125
},
"last_point": {
"ts": "2026-09-06T05:34:23+00:00",
"lat": 59.8819333000000000311047188006341457366943359375,
"lon": 30.224799999999998334487827378325164318084716796875
}
}- Duration: 5h 58m
- Radius: 9 meters
- Data Points: 24 AIS positions
- Centroid: 59.8820, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 9.199999999999999289457264239899814128875732421875,
"duration_minutes": 358.19999999999998863131622783839702606201171875,
"points": 24,
"centroid": {
"lat": 59.88195444583334392518736422061920166015625,
"lon": 30.224782433333331255198572762310504913330078125
},
"bbox": {
"min_lat": 59.88187330000000230256773647852241992950439453125,
"min_lon": 30.224733300000000468799044028855860233306884765625,
"max_lat": 59.88201670000000120808181236498057842254638671875,
"max_lon": 30.224855000000001581383912707678973674774169921875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 31m
- Data Points: 23 AIS positions
- Period: 2026-09-05T22:25:43+00:00 to 2026-09-06T04:57:03+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 391.30000000000001136868377216160297393798828125,
"points_in_zone": 23,
"first_point": {
"ts": "2026-09-05T22:25:43+00:00",
"lat": 59.8819366999999971312718116678297519683837890625,
"lon": 30.22473670000000112167981569655239582061767578125
},
"last_point": {
"ts": "2026-09-06T04:57:03+00:00",
"lat": 59.88197670000000272239049081690609455108642578125,
"lon": 30.22476329999999933306753518991172313690185546875
}
}- Duration: 6h 31m
- Radius: 9 meters
- Data Points: 23 AIS positions
- Centroid: 59.8820, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 9.199999999999999289457264239899814128875732421875,
"duration_minutes": 391.30000000000001136868377216160297393798828125,
"points": 23,
"centroid": {
"lat": 59.88195435217392770255173672921955585479736328125,
"lon": 30.224778843478258494315014104358851909637451171875
},
"bbox": {
"min_lat": 59.88187330000000230256773647852241992950439453125,
"min_lon": 30.224733300000000468799044028855860233306884765625,
"max_lat": 59.88201670000000120808181236498057842254638671875,
"max_lon": 30.224855000000001581383912707678973674774169921875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 9m
- Data Points: 2 AIS positions
- Period: 2026-08-29T13:51:04+00:00 to 2026-08-29T15:00:33+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 69.5,
"points_in_zone": 2,
"first_point": {
"ts": "2026-08-29T13:51:04+00:00",
"lat": 59.881986699999998791099642403423786163330078125,
"lon": 30.22466670000000021900632418692111968994140625
},
"last_point": {
"ts": "2026-08-29T15:00:33+00:00",
"lat": 59.8820199999999971396391629241406917572021484375,
"lon": 30.2246133000000014590114005841314792633056640625
}
}- Minimum Distance: 161 meters
- Average Distance: 163 meters
- Duration: 1h 29m
- Period: 2026-08-29T12:22:04+00:00 to 2026-08-29T13:51:04+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and THOTH) maintained close proximity (min 161m, avg 163m) for 89 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 20/25 | Min distance 161m, avg 163m |
| Duration | 15/25 | Duration 89 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273253080,
"imo": 9164718,
"name": "THOTH",
"flag": "Russia"
},
"min_distance_m": 161.400000000000005684341886080801486968994140625,
"avg_distance_m": 163,
"distance_consistency_m": 1.5,
"duration_minutes": 89,
"overlap_duration_s": 5340,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
}
},
"time_window": {
"start": "2026-08-29T12:22:04+00:00",
"end": "2026-08-29T13:51:04+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 20,
"max": 25,
"detail": "Min distance 161m, avg 163m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 89 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and THOTH) maintained close proximity (min 161m, avg 163m) for 89 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.882737800000001016087480820715427398681640625,
"lon": 30.224556400000000877525963005609810352325439453125
},
"time_window": {
"start_ts": "2026-08-29T12:22:04+00:00",
"end_ts": "2026-08-29T13:51:04+00:00"
},
"searched_at": "2026-08-29T14:30:22.936046+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260829T042445_20260829T042510_009205_0124A7_50F3_COG",
"scene_datetime": "2026-08-29T04:24:45.286972Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 26.616716000000000263980837189592421054840087890625,
"min_lat": 59.332763999999997395207174122333526611328125,
"max_lon": 31.92756800000000083628037828020751476287841796875,
"max_lat": 61.2613070000000021764208213426172733306884765625
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1162536_thumbnail_20260829143029.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1162536_thumbnail_20260829143029.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 38m
- Data Points: 4 AIS positions
- Period: 2026-08-29T12:22:04+00:00 to 2026-08-29T15:00:33+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 158.5,
"points_in_zone": 4,
"first_point": {
"ts": "2026-08-29T12:22:04+00:00",
"lat": 59.8820367000000004509274731390178203582763671875,
"lon": 30.224653299999999944702722132205963134765625
},
"last_point": {
"ts": "2026-08-29T15:00:33+00:00",
"lat": 59.8820199999999971396391629241406917572021484375,
"lon": 30.2246133000000014590114005841314792633056640625
}
}- Gap Duration: 4h 29m
- Last Seen: 2026-08-29T07:52:54+00:00 at 59.8819, 30.2245 (Zone: Ust-Luga/St. Petersburg Approach)
- Next Seen: 2026-08-29T12:22:04+00:00 at 59.8820, 30.2247
🛰️ Gap Corroboration
These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.
SAR Imagery (Sentinel-1)
Status: ✓ Snapshot available
SAR snapshot available for review
Scene: S1C_IW_GRDH_1SDV_20260829T042445_20260829T042510_009205_0124A7_50F3_COG • Time: 2026-08-29T04:24:45.286972Z
SAR coverage thumbnail
VIIRS Thermal Anomaly
Status: ✓ Signal detected
1 thermal/light anomalies detected
Detections: 1 thermal anomalies
View detections
| Location | Brightness | Time |
|---|---|---|
| 59.7461, 30.5247 | 300.7 K | 2026-08-29T05:00:00+00:00 |
Show Raw Evidence JSON
{
"gap_minutes": 269.19999999999998863131622783839702606201171875,
"last_seen": {
"ts": "2026-08-29T07:52:54+00:00",
"lat": 59.8819299999999969941200106404721736907958984375,
"lon": 30.22454330000000055633790907450020313262939453125,
"sog": 102.2999999999999971578290569595992565155029296875,
"zone_id": "russia_ust_luga_approach"
},
"next_seen": {
"ts": "2026-08-29T12:22:04+00:00",
"lat": 59.8820367000000004509274731390178203582763671875,
"lon": 30.224653299999999944702722132205963134765625,
"zone_ids": [
"russia_ust_luga_approach"
]
},
"gap_enrichment": {
"status": "done",
"corridor": {
"start": {
"lat": 59.8819299999999969941200106404721736907958984375,
"lon": 30.22454330000000055633790907450020313262939453125,
"ts": "2026-08-29T07:52:54+00:00"
},
"end": {
"lat": 59.8820367000000004509274731390178203582763671875,
"lon": 30.224653299999999944702722132205963134765625,
"ts": "2026-08-29T12:22:04+00:00"
},
"bbox": {
"min_lat": 59.70174999999999698729880037717521190643310546875,
"min_lon": 29.86546299999999831698005436919629573822021484375,
"max_lat": 60.06221699999999685815055272541940212249755859375,
"max_lon": 30.583732999999998725115801789797842502593994140625
},
"buffer_km": 20
},
"sar": {
"status": "snapshot",
"scene_id": "S1C_IW_GRDH_1SDV_20260829T042445_20260829T042510_009205_0124A7_50F3_COG",
"scene_time": "2026-08-29T04:24:45.286972Z",
"platform": "sentinel-1c",
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1162142_thumbnail_20260829124506.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1162142_thumbnail_20260829124506.png",
"source": "copernicus_dataspace"
},
"notes": "SAR snapshot available for review"
},
"viirs": {
"status": "signal",
"dataset": "VIIRS_SNPP",
"detection_count": 1,
"top_detections": [
{
"lat": 59.746049999999996771293808706104755401611328125,
"lon": 30.524660000000000792397258919663727283477783203125,
"brightness": 300.67000000000001591615728102624416351318359375,
"frp": 1.2199999999999999733546474089962430298328399658203125,
"confidence": "n",
"acq_date": "2026-08-29",
"acq_time": "50",
"satellite": "N",
"daynight": "N",
"acq_datetime": "2026-08-29T05:00:00+00:00"
}
],
"notes": "1 thermal\/light anomalies detected"
},
"searched_at": "2026-08-29T12:45:01.590584+00:00"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 58m
- Data Points: 4 AIS positions
- Period: 2026-08-29T07:52:54+00:00 to 2026-08-29T13:51:04+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 358.19999999999998863131622783839702606201171875,
"points_in_zone": 4,
"first_point": {
"ts": "2026-08-29T07:52:54+00:00",
"lat": 59.8819299999999969941200106404721736907958984375,
"lon": 30.22454330000000055633790907450020313262939453125
},
"last_point": {
"ts": "2026-08-29T13:51:04+00:00",
"lat": 59.881986699999998791099642403423786163330078125,
"lon": 30.22466670000000021900632418692111968994140625
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 3h 43m
- Data Points: 2 AIS positions
- Period: 2026-08-29T04:09:23+00:00 to 2026-08-29T07:52:54+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 223.5,
"points_in_zone": 2,
"first_point": {
"ts": "2026-08-29T04:09:23+00:00",
"lat": 59.8820249999999987267074175179004669189453125,
"lon": 30.224663299999999566125552519224584102630615234375
},
"last_point": {
"ts": "2026-08-29T07:52:54+00:00",
"lat": 59.8819299999999969941200106404721736907958984375,
"lon": 30.22454330000000055633790907450020313262939453125
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 14m
- Data Points: 6 AIS positions
- Period: 2026-08-26T13:45:43+00:00 to 2026-08-26T14:59:52+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 74.2000000000000028421709430404007434844970703125,
"points_in_zone": 6,
"first_point": {
"ts": "2026-08-26T13:45:43+00:00",
"lat": 59.87412830000000241170710069127380847930908203125,
"lon": 30.20202330000000046084096538834273815155029296875
},
"last_point": {
"ts": "2026-08-26T14:59:52+00:00",
"lat": 59.8742383000000018000719137489795684814453125,
"lon": 30.20206999999999908368408796377480030059814453125
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 44m
- Data Points: 7 AIS positions
- Period: 2026-08-26T12:15:34+00:00 to 2026-08-26T14:59:52+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 164.30000000000001136868377216160297393798828125,
"points_in_zone": 7,
"first_point": {
"ts": "2026-08-26T12:15:34+00:00",
"lat": 59.8740250000000031604940886609256267547607421875,
"lon": 30.20203169999999914807631284929811954498291015625
},
"last_point": {
"ts": "2026-08-26T14:59:52+00:00",
"lat": 59.8742383000000018000719137489795684814453125,
"lon": 30.20206999999999908368408796377480030059814453125
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 22m
- Data Points: 5 AIS positions
- Period: 2026-08-26T07:28:23+00:00 to 2026-08-26T13:50:43+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 382.30000000000001136868377216160297393798828125,
"points_in_zone": 5,
"first_point": {
"ts": "2026-08-26T07:28:23+00:00",
"lat": 59.88195999999999941110218060202896595001220703125,
"lon": 30.22480829999999940582711133174598217010498046875
},
"last_point": {
"ts": "2026-08-26T13:50:43+00:00",
"lat": 59.87398499999999756937540951184928417205810546875,
"lon": 30.201969999999999316742105293087661266326904296875
}
}- Minimum Distance: 14 meters
- Average Distance: 15 meters
- Duration: 37 minutes
- Period: 2026-08-26T07:06:51+00:00 to 2026-08-26T07:44:21+00:00
- Vessel A Avg Speed: 0.1 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (DMITRIY RULEVSKIY and ABIGAIL) maintained close proximity (min 14m, avg 15m) 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 14m, avg 15m |
| Duration | 5/25 | Duration 38 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
No satellite imagery for this time/location
No Sentinel-1 scenes covering AOI and time window
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 13.699999999999999289457264239899814128875732421875,
"avg_distance_m": 15.0999999999999996447286321199499070644378662109375,
"distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
"duration_minutes": 37.5,
"overlap_duration_s": 2250,
"speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
"speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.059999999999999997779553950749686919152736663818359375,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-08-26T07:06:51+00:00",
"end": "2026-08-26T07:44:21+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 14m, avg 15m"
},
"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 \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (DMITRIY RULEVSKIY and ABIGAIL) maintained close proximity (min 14m, avg 15m) 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 59.8820213999999992893208400346338748931884765625,
"lon": 30.22485640000000017835191101767122745513916015625
},
"time_window": {
"start_ts": "2026-08-26T07:06:51+00:00",
"end_ts": "2026-08-26T07:44:21+00:00"
},
"searched_at": "2026-08-26T12:30:01.494694+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 50m
- Data Points: 5 AIS positions
- Period: 2026-08-26T06:24:42+00:00 to 2026-08-26T12:15:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 350.8999999999999772626324556767940521240234375,
"points_in_zone": 5,
"first_point": {
"ts": "2026-08-26T06:24:42+00:00",
"lat": 59.88197000000000258523868978954851627349853515625,
"lon": 30.2247933000000017500497051514685153961181640625
},
"last_point": {
"ts": "2026-08-26T12:15:34+00:00",
"lat": 59.8740250000000031604940886609256267547607421875,
"lon": 30.20203169999999914807631284929811954498291015625
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 30m
- Data Points: 6 AIS positions
- Period: 2026-08-26T05:44:43+00:00 to 2026-08-26T12:15:34+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 390.8999999999999772626324556767940521240234375,
"points_in_zone": 6,
"first_point": {
"ts": "2026-08-26T05:44:43+00:00",
"lat": 59.8819299999999969941200106404721736907958984375,
"lon": 30.224778300000000541558620170690119266510009765625
},
"last_point": {
"ts": "2026-08-26T12:15:34+00:00",
"lat": 59.8740250000000031604940886609256267547607421875,
"lon": 30.20203169999999914807631284929811954498291015625
}
}- Minimum Distance: 96 meters
- Average Distance: 99 meters
- Duration: 1h 40m
- Period: 2026-08-25T03:15:54+00:00 to 2026-08-25T04:56:35+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 96m, avg 99m) for 101 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 96m, avg 99m |
| Duration | 20/25 | Duration 101 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 96.400000000000005684341886080801486968994140625,
"avg_distance_m": 99.400000000000005684341886080801486968994140625,
"distance_consistency_m": 2.100000000000000088817841970012523233890533447265625,
"duration_minutes": 100.7000000000000028421709430404007434844970703125,
"overlap_duration_s": 6041,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
}
},
"time_window": {
"start": "2026-08-25T03:15:54+00:00",
"end": "2026-08-25T04:56:35+00:00"
},
"points_count": {
"vessel_a": 4,
"vessel_b": 4
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 90,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 96m, avg 99m"
},
"duration": {
"score": 20,
"max": 25,
"detail": "Duration 101 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 96m, avg 99m) for 101 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88199329999999775964170112274587154388427734375,
"lon": 30.225830599999998327120920293964445590972900390625
},
"time_window": {
"start_ts": "2026-08-25T03:15:54+00:00",
"end_ts": "2026-08-25T04:56:35+00:00"
},
"searched_at": "2026-08-25T09:30:08.071715+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260824T153122_20260824T153147_009139_01225D_F0AA_COG",
"scene_datetime": "2026-08-24T15:31:22.924579Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 29.00003099999999989222487783990800380706787109375,
"min_lat": 59.5085260000000033642209018580615520477294921875,
"max_lon": 34.328518000000002530214260332286357879638671875,
"max_lat": 61.43686699999999945021045277826488018035888671875
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1122315_thumbnail_20260825093011.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1122315_thumbnail_20260825093011.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 40m
- Data Points: 4 AIS positions
- Period: 2026-08-25T03:15:54+00:00 to 2026-08-25T04:56:35+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 100.7000000000000028421709430404007434844970703125,
"points_in_zone": 4,
"first_point": {
"ts": "2026-08-25T03:15:54+00:00",
"lat": 59.88192670000000106256266008131206035614013671875,
"lon": 30.226698299999998909015630488283932209014892578125
},
"last_point": {
"ts": "2026-08-25T04:56:35+00:00",
"lat": 59.881896699999998645580490119755268096923828125,
"lon": 30.226683300000001253238224308006465435028076171875
}
}- Minimum Distance: 96 meters
- Average Distance: 100 meters
- Duration: 2h 15m
- Period: 2026-08-25T02:40:44+00:00 to 2026-08-25T04:56:35+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 96m, avg 100m) for 136 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 96m, avg 100m |
| Duration | 25/25 | Duration 136 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 96.400000000000005684341886080801486968994140625,
"avg_distance_m": 100.099999999999994315658113919198513031005859375,
"distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
"duration_minutes": 135.80000000000001136868377216160297393798828125,
"overlap_duration_s": 8151,
"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": "2026-08-25T02:40:44+00:00",
"end": "2026-08-25T04:56:35+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 96m, avg 100m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 136 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 96m, avg 100m) for 136 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88199670000000196523615159094333648681640625,
"lon": 30.225822699999998377506926772184669971466064453125
},
"time_window": {
"start_ts": "2026-08-25T02:40:44+00:00",
"end_ts": "2026-08-25T04:56:35+00:00"
},
"searched_at": "2026-08-25T09:15:10.075452+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260824T153122_20260824T153147_009139_01225D_F0AA_COG",
"scene_datetime": "2026-08-24T15:31:22.924579Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 29.00003099999999989222487783990800380706787109375,
"min_lat": 59.5085260000000033642209018580615520477294921875,
"max_lon": 34.328518000000002530214260332286357879638671875,
"max_lat": 61.43686699999999945021045277826488018035888671875
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1122283_thumbnail_20260825091516.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1122283_thumbnail_20260825091516.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 24m
- Data Points: 6 AIS positions
- Period: 2026-08-25T02:32:35+00:00 to 2026-08-25T04:56:35+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 144,
"points_in_zone": 6,
"first_point": {
"ts": "2026-08-25T02:32:35+00:00",
"lat": 59.88191669999999788842615089379251003265380859375,
"lon": 30.226696700000001527541826362721621990203857421875
},
"last_point": {
"ts": "2026-08-25T04:56:35+00:00",
"lat": 59.881896699999998645580490119755268096923828125,
"lon": 30.226683300000001253238224308006465435028076171875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 3h 37m
- Data Points: 12 AIS positions
- Period: 2026-08-25T01:18:54+00:00 to 2026-08-25T04:56:35+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 217.69999999999998863131622783839702606201171875,
"points_in_zone": 12,
"first_point": {
"ts": "2026-08-25T01:18:54+00:00",
"lat": 59.88191499999999933834260446019470691680908203125,
"lon": 30.2266766999999987319824867881834506988525390625
},
"last_point": {
"ts": "2026-08-25T04:56:35+00:00",
"lat": 59.881896699999998645580490119755268096923828125,
"lon": 30.226683300000001253238224308006465435028076171875
}
}- Duration: 3h 37m
- Radius: 3 meters
- Data Points: 12 AIS positions
- Centroid: 59.8819, 30.2267
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 3,
"duration_minutes": 217.69999999999998863131622783839702606201171875,
"points": 12,
"centroid": {
"lat": 59.88190999999999775127434986643493175506591796875,
"lon": 30.2267027749999925845258985646069049835205078125
},
"bbox": {
"min_lat": 59.8818882999999999583451426587998867034912109375,
"min_lon": 30.2266766999999987319824867881834506988525390625,
"max_lat": 59.8819333000000000311047188006341457366943359375,
"max_lon": 30.226728300000001325997800449840724468231201171875
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 96 meters
- Average Distance: 100 meters
- Duration: 3h 6m
- Period: 2026-08-25T01:49:54+00:00 to 2026-08-25T04:56:35+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 96m, avg 100m) for 187 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 96m, avg 100m |
| Duration | 25/25 | Duration 187 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 96.400000000000005684341886080801486968994140625,
"avg_distance_m": 100.099999999999994315658113919198513031005859375,
"distance_consistency_m": 2.100000000000000088817841970012523233890533447265625,
"duration_minutes": 186.69999999999998863131622783839702606201171875,
"overlap_duration_s": 11201,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
"speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
}
},
"time_window": {
"start": "2026-08-25T01:49:54+00:00",
"end": "2026-08-25T04:56:35+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 96m, avg 100m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 187 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 96m, avg 100m) for 187 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Minimum Distance: 219 meters
- Average Distance: 220 meters
- Duration: 1h 14m
- Period: 2026-08-25T01:26:14+00:00 to 2026-08-25T02:40:44+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (ABIGAIL and SOLSTRAUM) maintained close proximity (min 219m, avg 220m) for 74 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 15/25 | Min distance 219m, avg 220m |
| Duration | 15/25 | Duration 74 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273291710,
"imo": 9157014,
"name": "SOLSTRAUM",
"flag": "Russia"
},
"min_distance_m": 218.69999999999998863131622783839702606201171875,
"avg_distance_m": 220.400000000000005684341886080801486968994140625,
"distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
"duration_minutes": 74.5,
"overlap_duration_s": 4470,
"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": "2026-08-25T01:26:14+00:00",
"end": "2026-08-25T02:40:44+00:00"
},
"points_count": {
"vessel_a": 6,
"vessel_b": 6
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 15,
"max": 25,
"detail": "Min distance 219m, avg 220m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 74 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (ABIGAIL and SOLSTRAUM) maintained close proximity (min 219m, avg 220m) for 74 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Minimum Distance: 93 meters
- Average Distance: 95 meters
- Duration: 3h 6m
- Period: 2026-08-24T22:16:14+00:00 to 2026-08-25T01:23:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and ARCTICA) maintained close proximity (min 93m, avg 95m) for 187 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 93m, avg 95m |
| Duration | 25/25 | Duration 187 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273333320,
"imo": 6920147,
"name": "ARCTICA",
"flag": "Russia"
},
"min_distance_m": 92.900000000000005684341886080801486968994140625,
"avg_distance_m": 94.599999999999994315658113919198513031005859375,
"distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
"duration_minutes": 186.80000000000001136868377216160297393798828125,
"overlap_duration_s": 11211,
"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": "2026-08-24T22:16:14+00:00",
"end": "2026-08-25T01:23:05+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 93m, avg 95m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 187 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and ARCTICA) maintained close proximity (min 93m, avg 95m) for 187 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88165670000000062600520323030650615692138671875,
"lon": 30.2273828000000008842107490636408329010009765625
},
"time_window": {
"start_ts": "2026-08-24T22:16:14+00:00",
"end_ts": "2026-08-25T01:23:05+00:00"
},
"searched_at": "2026-08-25T01:30:12.794712+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260824T153122_20260824T153147_009139_01225D_F0AA_COG",
"scene_datetime": "2026-08-24T15:31:22.924579Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 29.00003099999999989222487783990800380706787109375,
"min_lat": 59.5085260000000033642209018580615520477294921875,
"max_lon": 34.328518000000002530214260332286357879638671875,
"max_lat": 61.43686699999999945021045277826488018035888671875
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1118672_thumbnail_20260825013016.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1118672_thumbnail_20260825013016.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 29m
- Data Points: 11 AIS positions
- Period: 2026-08-24T22:16:14+00:00 to 2026-08-25T04:45:55+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 389.69999999999998863131622783839702606201171875,
"points_in_zone": 11,
"first_point": {
"ts": "2026-08-24T22:16:14+00:00",
"lat": 59.88187669999999940273482934571802616119384765625,
"lon": 30.226678299999999666169969714246690273284912109375
},
"last_point": {
"ts": "2026-08-25T04:45:55+00:00",
"lat": 59.88192169999999947549440548755228519439697265625,
"lon": 30.2267216999999988047420629300177097320556640625
}
}- Duration: 6h 29m
- Radius: 4 meters
- Data Points: 11 AIS positions
- Centroid: 59.8819, 30.2267
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 4,
"duration_minutes": 389.69999999999998863131622783839702606201171875,
"points": 11,
"centroid": {
"lat": 59.8819101545454515189703670330345630645751953125,
"lon": 30.226702272727269615870682173408567905426025390625
},
"bbox": {
"min_lat": 59.88187669999999940273482934571802616119384765625,
"min_lon": 30.2266766999999987319824867881834506988525390625,
"max_lat": 59.8819333000000000311047188006341457366943359375,
"max_lon": 30.226728300000001325997800449840724468231201171875
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 217 meters
- Average Distance: 221 meters
- Duration: 1h 51m
- Period: 2026-08-24T20:24:54+00:00 to 2026-08-24T22:16:14+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and SOLSTRAUM) maintained close proximity (min 216m, avg 221m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 15/25 | Min distance 216m, avg 221m |
| Duration | 20/25 | Duration 111 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: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273291710,
"imo": 9157014,
"name": "SOLSTRAUM",
"flag": "Russia"
},
"min_distance_m": 216.5,
"avg_distance_m": 221.19999999999998863131622783839702606201171875,
"distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
"duration_minutes": 111.2999999999999971578290569595992565155029296875,
"overlap_duration_s": 6680,
"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": "2026-08-24T20:24:54+00:00",
"end": "2026-08-24T22:16:14+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 15,
"max": 25,
"detail": "Min distance 216m, avg 221m"
},
"duration": {
"score": 20,
"max": 25,
"detail": "Duration 111 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b14m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and SOLSTRAUM) maintained close proximity (min 216m, avg 221m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.8826959000000016430931282229721546173095703125,
"lon": 30.2255774999999999863575794734060764312744140625
},
"time_window": {
"start_ts": "2026-08-24T20:24:54+00:00",
"end_ts": "2026-08-24T22:16:14+00:00"
},
"searched_at": "2026-08-25T01:15:01.297640+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260824T153122_20260824T153147_009139_01225D_F0AA_COG",
"scene_datetime": "2026-08-24T15:31:22.924579Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 29.00003099999999989222487783990800380706787109375,
"min_lat": 59.5085260000000033642209018580615520477294921875,
"max_lon": 34.328518000000002530214260332286357879638671875,
"max_lat": 61.43686699999999945021045277826488018035888671875
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1118557_thumbnail_20260825011507.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1118557_thumbnail_20260825011507.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 15m
- Data Points: 11 AIS positions
- Period: 2026-08-24T20:24:54+00:00 to 2026-08-25T02:40:44+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 375.80000000000001136868377216160297393798828125,
"points_in_zone": 11,
"first_point": {
"ts": "2026-08-24T20:24:54+00:00",
"lat": 59.8819017000000002326487447135150432586669921875,
"lon": 30.226678299999999666169969714246690273284912109375
},
"last_point": {
"ts": "2026-08-25T02:40:44+00:00",
"lat": 59.88190329999999761412254883907735347747802734375,
"lon": 30.226686699999998353405317175202071666717529296875
}
}- Duration: 6h 15m
- Radius: 8 meters
- Data Points: 11 AIS positions
- Centroid: 59.8819, 30.2267
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 7.5999999999999996447286321199499070644378662109375,
"duration_minutes": 375.80000000000001136868377216160297393798828125,
"points": 11,
"centroid": {
"lat": 59.8818998454545408094418235123157501220703125,
"lon": 30.226695454545453145556166418828070163726806640625
},
"bbox": {
"min_lat": 59.8818332999999967114490573294460773468017578125,
"min_lon": 30.226666699999999110559656401164829730987548828125,
"max_lat": 59.8819333000000000311047188006341457366943359375,
"max_lon": 30.226728300000001325997800449840724468231201171875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 4h 10m
- Data Points: 5 AIS positions
- Period: 2026-08-24T18:05:53+00:00 to 2026-08-24T22:16:14+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 250.30000000000001136868377216160297393798828125,
"points_in_zone": 5,
"first_point": {
"ts": "2026-08-24T18:05:53+00:00",
"lat": 59.88192670000000106256266008131206035614013671875,
"lon": 30.226704999999999046167431515641510486602783203125
},
"last_point": {
"ts": "2026-08-24T22:16:14+00:00",
"lat": 59.88187669999999940273482934571802616119384765625,
"lon": 30.226678299999999666169969714246690273284912109375
}
}- Minimum Distance: 29 meters
- Average Distance: 34 meters
- Duration: 51 minutes
- Period: 2026-08-23T08:46:14+00:00 to 2026-08-23T09:37:35+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 29m, avg 34m) for 51 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 29m, avg 34m |
| Duration | 10/25 | Duration 51 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: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"min_distance_m": 28.60000000000000142108547152020037174224853515625,
"avg_distance_m": 34.10000000000000142108547152020037174224853515625,
"distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
"duration_minutes": 51.39999999999999857891452847979962825775146484375,
"overlap_duration_s": 3081,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
}
},
"time_window": {
"start": "2026-08-23T08:46:14+00:00",
"end": "2026-08-23T09:37:35+00:00"
},
"points_count": {
"vessel_a": 11,
"vessel_b": 11
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 29m, avg 34m"
},
"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": 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and DMITRIY RULEVSKIY) maintained close proximity (min 29m, avg 34m) for 51 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88196450000000226054908125661313533782958984375,
"lon": 30.224750499999998964995029382407665252685546875
},
"time_window": {
"start_ts": "2026-08-23T08:46:14+00:00",
"end_ts": "2026-08-23T09:37:35+00:00"
},
"searched_at": "2026-08-23T10:00:09.215461+00:00",
"scene_id": "S1D_IW_GRDH_1SDV_20260823T042457_20260823T042522_004248_007CEB_35C1_COG",
"scene_datetime": "2026-08-23T04:24:57.903420Z",
"platform": "sentinel-1d",
"bbox": {
"min_lon": 26.61877799999999893998392508365213871002197265625,
"min_lat": 59.33255799999999879901224630884826183319091796875,
"max_lon": 31.9297100000000000363797880709171295166015625,
"max_lat": 61.26119200000000120098775369115173816680908203125
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1101549_thumbnail_20260823100013.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1101549_thumbnail_20260823100013.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 34m
- Data Points: 18 AIS positions
- Period: 2026-08-23T08:13:38+00:00 to 2026-08-23T09:48:06+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 94.5,
"points_in_zone": 18,
"first_point": {
"ts": "2026-08-23T08:13:38+00:00",
"lat": 59.8818049999999999499777914024889469146728515625,
"lon": 30.2246200000000015961632016114890575408935546875
},
"last_point": {
"ts": "2026-08-23T09:48:06+00:00",
"lat": 59.8815383000000025504050427116453647613525390625,
"lon": 30.22538829999999876463334658183157444000244140625
}
}- Duration: 1h 34m
- Radius: 51 meters
- Data Points: 18 AIS positions
- Centroid: 59.8818, 30.2247
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 50.89999999999999857891452847979962825775146484375,
"duration_minutes": 94.5,
"points": 18,
"centroid": {
"lat": 59.88180722222222840400718268938362598419189453125,
"lon": 30.2246538888888807150578941218554973602294921875
},
"bbox": {
"min_lat": 59.8815383000000025504050427116453647613525390625,
"min_lon": 30.224585000000001144826455856673419475555419921875,
"max_lat": 59.8818399999999968486008583568036556243896484375,
"max_lon": 30.22538829999999876463334658183157444000244140625
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 76 meters
- Average Distance: 80 meters
- Duration: 45 minutes
- Period: 2026-08-23T08:46:14+00:00 to 2026-08-23T09:32:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 76m, avg 80m) for 46 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 80m |
| Duration | 10/25 | Duration 46 minutes |
| Speed Stability | 17/20 | both nearly stationary; stable speeds |
| Distance Consistency | 15/15 | Distance variance ±5m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"min_distance_m": 75.5,
"avg_distance_m": 79.599999999999994315658113919198513031005859375,
"distance_consistency_m": 5,
"duration_minutes": 45.89999999999999857891452847979962825775146484375,
"overlap_duration_s": 2751,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.2200000000000000011102230246251565404236316680908203125,
"speed_b_std": 0.440000000000000002220446049250313080847263336181640625,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.2200000000000000011102230246251565404236316680908203125,
"max_sog": 1
}
},
"time_window": {
"start": "2026-08-23T08:46:14+00:00",
"end": "2026-08-23T09:32:05+00:00"
},
"points_count": {
"vessel_a": 9,
"vessel_b": 9
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 77,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 80m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 46 minutes"
},
"speed_stability": {
"score": 17,
"max": 20,
"detail": "both nearly stationary; stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b15m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 76m, avg 80m) for 46 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Duration: 1h 50m
- Radius: 58 meters
- Data Points: 20 AIS positions
- Centroid: 59.8818, 30.2246
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 57.5,
"duration_minutes": 110.7999999999999971578290569595992565155029296875,
"points": 20,
"centroid": {
"lat": 59.88177208500002279834006913006305694580078125,
"lon": 30.224642079999995303296600468456745147705078125
},
"bbox": {
"min_lat": 59.88125670000000155823727254755795001983642578125,
"min_lon": 30.224483299999999275087247951887547969818115234375,
"max_lat": 59.8818399999999968486008583568036556243896484375,
"max_lon": 30.22538829999999876463334658183157444000244140625
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 67 meters
- Average Distance: 80 meters
- Duration: 1h 34m
- Period: 2026-08-23T07:51:17+00:00 to 2026-08-23T09:25:50+00:00
- Vessel A Avg Speed: 0.1 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (KAPITAN DZHUMANOV and ABIGAIL) maintained close proximity (min 67m, avg 80m) for 94 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 67m, avg 80m |
| Duration | 20/25 | Duration 94 minutes |
| Speed Stability | 17/20 | both nearly stationary; stable speeds |
| Distance Consistency | 15/15 | Distance variance ±8m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 66.7000000000000028421709430404007434844970703125,
"avg_distance_m": 79.7999999999999971578290569595992565155029296875,
"distance_consistency_m": 7.9000000000000003552713678800500929355621337890625,
"duration_minutes": 94.5,
"overlap_duration_s": 5673,
"speed_a_avg": 0.13000000000000000444089209850062616169452667236328125,
"speed_a_std": 0.320000000000000006661338147750939242541790008544921875,
"speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
"speed_b_std": 0.39000000000000001332267629550187848508358001708984375,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.13000000000000000444089209850062616169452667236328125,
"max_sog": 1
},
"vessel_b": {
"avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
"max_sog": 1.1999999999999999555910790149937383830547332763671875
}
},
"time_window": {
"start": "2026-08-23T07:51:17+00:00",
"end": "2026-08-23T09:25:50+00:00"
},
"points_count": {
"vessel_a": 21,
"vessel_b": 21
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 87,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 67m, avg 80m"
},
"duration": {
"score": 20,
"max": 25,
"detail": "Duration 94 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (KAPITAN DZHUMANOV and ABIGAIL) maintained close proximity (min 67m, avg 80m) for 94 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 4m
- Data Points: 21 AIS positions
- Period: 2026-08-23T07:44:04+00:00 to 2026-08-23T09:48:06+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 124,
"points_in_zone": 21,
"first_point": {
"ts": "2026-08-23T07:44:04+00:00",
"lat": 59.8858182999999968387783155776560306549072265625,
"lon": 30.204788300000000589307092013768851757049560546875
},
"last_point": {
"ts": "2026-08-23T09:48:06+00:00",
"lat": 59.8815383000000025504050427116453647613525390625,
"lon": 30.22538829999999876463334658183157444000244140625
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 4h 39m
- Data Points: 24 AIS positions
- Period: 2026-08-23T05:09:04+00:00 to 2026-08-23T09:48:06+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 279,
"points_in_zone": 24,
"first_point": {
"ts": "2026-08-23T05:09:04+00:00",
"lat": 59.88868169999999935271262074820697307586669921875,
"lon": 30.214103300000001439684638171456754207611083984375
},
"last_point": {
"ts": "2026-08-23T09:48:06+00:00",
"lat": 59.8815383000000025504050427116453647613525390625,
"lon": 30.22538829999999876463334658183157444000244140625
}
}- Minimum Distance: 72 meters
- Average Distance: 79 meters
- Duration: 4h 39m
- Period: 2026-08-23T04:52:45+00:00 to 2026-08-23T09:32:05+00:00
- Vessel A Avg Speed: 0.1 knots
- Vessel B Avg Speed: 0.1 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 72m, avg 79m) for 279 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 72m, avg 79m |
| Duration | 25/25 | Duration 279 minutes |
| Speed Stability | 17/20 | both nearly stationary; stable speeds |
| Distance Consistency | 15/15 | Distance variance ±6m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"min_distance_m": 72.400000000000005684341886080801486968994140625,
"avg_distance_m": 78.900000000000005684341886080801486968994140625,
"distance_consistency_m": 5.5999999999999996447286321199499070644378662109375,
"duration_minutes": 279.30000000000001136868377216160297393798828125,
"overlap_duration_s": 16760,
"speed_a_avg": 0.11000000000000000055511151231257827021181583404541015625,
"speed_a_std": 0.320000000000000006661338147750939242541790008544921875,
"speed_b_avg": 0.11000000000000000055511151231257827021181583404541015625,
"speed_b_std": 0.320000000000000006661338147750939242541790008544921875,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.11000000000000000055511151231257827021181583404541015625,
"max_sog": 1.1999999999999999555910790149937383830547332763671875
},
"vessel_b": {
"avg_sog": 0.11000000000000000055511151231257827021181583404541015625,
"max_sog": 1
}
},
"time_window": {
"start": "2026-08-23T04:52:45+00:00",
"end": "2026-08-23T09:32:05+00:00"
},
"points_count": {
"vessel_a": 19,
"vessel_b": 19
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 92,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 72m, avg 79m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 279 minutes"
},
"speed_stability": {
"score": 17,
"max": 20,
"detail": "both nearly stationary; 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 72m, avg 79m) for 279 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 39m
- Data Points: 29 AIS positions
- Period: 2026-08-23T04:08:14+00:00 to 2026-08-23T09:48:06+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 339.8999999999999772626324556767940521240234375,
"points_in_zone": 29,
"first_point": {
"ts": "2026-08-23T04:08:14+00:00",
"lat": 59.8818449999999984356691129505634307861328125,
"lon": 30.2245750000000015234036254696547985076904296875
},
"last_point": {
"ts": "2026-08-23T09:48:06+00:00",
"lat": 59.8815383000000025504050427116453647613525390625,
"lon": 30.22538829999999876463334658183157444000244140625
}
}- Minimum Distance: 133 meters
- Average Distance: 147 meters
- Duration: 4h 49m
- Period: 2026-08-23T03:46:15+00:00 to 2026-08-23T08:35:18+00:00
- Vessel A Avg Speed: 0.3 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (RYAZAN and ABIGAIL) maintained close proximity (min 133m, avg 147m) for 289 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 20/25 | Min distance 133m, avg 147m |
| Duration | 25/25 | Duration 289 minutes |
| Speed Stability | 17/20 | both nearly stationary; stable speeds |
| Distance Consistency | 15/15 | Distance variance ±15m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273357610,
"imo": 8915548,
"name": "RYAZAN",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 133.400000000000005684341886080801486968994140625,
"avg_distance_m": 147.30000000000001136868377216160297393798828125,
"distance_consistency_m": 15.199999999999999289457264239899814128875732421875,
"duration_minutes": 289.1000000000000227373675443232059478759765625,
"overlap_duration_s": 17343,
"speed_a_avg": 0.330000000000000015543122344752191565930843353271484375,
"speed_a_std": 0.419999999999999984456877655247808434069156646728515625,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.330000000000000015543122344752191565930843353271484375,
"max_sog": 0.8000000000000000444089209850062616169452667236328125
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-08-23T03:46:15+00:00",
"end": "2026-08-23T08:35:18+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 87,
"components": {
"distance_tightness": {
"score": 20,
"max": 25,
"detail": "Min distance 133m, avg 147m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 289 minutes"
},
"speed_stability": {
"score": 17,
"max": 20,
"detail": "both nearly stationary; stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b115m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (RYAZAN and ABIGAIL) maintained close proximity (min 133m, avg 147m) for 289 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.8824781000000001540684024803340435028076171875,
"lon": 30.224270000000000635509422863833606243133544921875
},
"time_window": {
"start_ts": "2026-08-23T03:46:15+00:00",
"end_ts": "2026-08-23T08:35:18+00:00"
},
"searched_at": "2026-08-23T09:15:04.502998+00:00",
"scene_id": "S1D_IW_GRDH_1SDV_20260823T042457_20260823T042522_004248_007CEB_35C1_COG",
"scene_datetime": "2026-08-23T04:24:57.903420Z",
"platform": "sentinel-1d",
"bbox": {
"min_lon": 26.61877799999999893998392508365213871002197265625,
"min_lat": 59.33255799999999879901224630884826183319091796875,
"max_lon": 31.9297100000000000363797880709171295166015625,
"max_lat": 61.26119200000000120098775369115173816680908203125
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1101150_thumbnail_20260823091513.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1101150_thumbnail_20260823091513.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 6m
- Data Points: 31 AIS positions
- Period: 2026-08-23T03:41:56+00:00 to 2026-08-23T09:48:06+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 366.19999999999998863131622783839702606201171875,
"points_in_zone": 31,
"first_point": {
"ts": "2026-08-23T03:41:56+00:00",
"lat": 59.88185829999999754136297269724309444427490234375,
"lon": 30.224638299999998736211637151427567005157470703125
},
"last_point": {
"ts": "2026-08-23T09:48:06+00:00",
"lat": 59.8815383000000025504050427116453647613525390625,
"lon": 30.22538829999999876463334658183157444000244140625
}
}- Minimum Distance: 71 meters
- Average Distance: 78 meters
- Duration: 5h 39m
- Period: 2026-08-23T03:52:55+00:00 to 2026-08-23T09:32:05+00:00
- Vessel A Avg Speed: 0.1 knots
- Vessel B Avg Speed: 0.1 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 70m, avg 78m) for 339 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 78m |
| Duration | 25/25 | Duration 339 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±6m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"min_distance_m": 70.5,
"avg_distance_m": 78.2000000000000028421709430404007434844970703125,
"distance_consistency_m": 5.5999999999999996447286321199499070644378662109375,
"duration_minutes": 339.19999999999998863131622783839702606201171875,
"overlap_duration_s": 20350,
"speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
"speed_a_std": 0.289999999999999980015985556747182272374629974365234375,
"speed_b_avg": 0.0899999999999999966693309261245303787291049957275390625,
"speed_b_std": 0.289999999999999980015985556747182272374629974365234375,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
"max_sog": 1.1999999999999999555910790149937383830547332763671875
},
"vessel_b": {
"avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
"max_sog": 1
}
},
"time_window": {
"start": "2026-08-23T03:52:55+00:00",
"end": "2026-08-23T09:32:05+00:00"
},
"points_count": {
"vessel_a": 23,
"vessel_b": 23
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 78m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 339 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 70m, avg 78m) for 339 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Minimum Distance: 31 meters
- Average Distance: 32 meters
- Duration: 2h 38m
- Period: 2026-08-23T02:27:32+00:00 to 2026-08-23T05:06:12+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (DMITRIY RULEVSKIY and ABIGAIL) maintained close proximity (min 31m, avg 32m) 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 31m, avg 32m |
| Duration | 25/25 | Duration 159 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 31.39999999999999857891452847979962825775146484375,
"avg_distance_m": 32.2000000000000028421709430404007434844970703125,
"distance_consistency_m": 1,
"duration_minutes": 158.69999999999998863131622783839702606201171875,
"overlap_duration_s": 9520,
"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": "2026-08-23T02:27:32+00:00",
"end": "2026-08-23T05:06:12+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 31m, avg 32m"
},
"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 \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (DMITRIY RULEVSKIY and ABIGAIL) maintained close proximity (min 31m, avg 32m) 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88193559999999848741936148144304752349853515625,
"lon": 30.224792199999999553483576164580881595611572265625
},
"time_window": {
"start_ts": "2026-08-23T02:27:32+00:00",
"end_ts": "2026-08-23T05:06:12+00:00"
},
"searched_at": "2026-08-23T05:30:02.060198+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260822T154739_20260822T154804_009110_012160_243F_COG",
"scene_datetime": "2026-08-22T15:47:39.445191Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 25.16883500000000140062184073030948638916015625,
"min_lat": 58.8682900000000017826096154749393463134765625,
"max_lon": 30.41223000000000098452801466919481754302978515625,
"max_lat": 60.79593299999999800320438225753605365753173828125
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1099307_thumbnail_20260823053007.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1099307_thumbnail_20260823053007.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 35m
- Data Points: 24 AIS positions
- Period: 2026-08-23T02:23:55+00:00 to 2026-08-23T08:59:35+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 395.69999999999998863131622783839702606201171875,
"points_in_zone": 24,
"first_point": {
"ts": "2026-08-23T02:23:55+00:00",
"lat": 59.88182669999999774290699861012399196624755859375,
"lon": 30.224618299999999493365976377390325069427490234375
},
"last_point": {
"ts": "2026-08-23T08:59:35+00:00",
"lat": 59.88183000000000077989170677028596401214599609375,
"lon": 30.2246099999999984220266924239695072174072265625
}
}- Duration: 3h 1m
- Radius: 1,038 meters
- Data Points: 11 AIS positions
- Centroid: 59.8831, 30.2221
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 1037.5,
"duration_minutes": 181.30000000000001136868377216160297393798828125,
"points": 11,
"centroid": {
"lat": 59.88305349090909857068254495970904827117919921875,
"lon": 30.222076809090903992682797252200543880462646484375
},
"bbox": {
"min_lat": 59.8818016999999969129930832423269748687744140625,
"min_lon": 30.2069800000000014961187844164669513702392578125,
"max_lat": 59.88868169999999935271262074820697307586669921875,
"max_lon": 30.224683299999998808971213293261826038360595703125
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 72 meters
- Average Distance: 77 meters
- Duration: 30 minutes
- Period: 2026-08-23T02:01:38+00:00 to 2026-08-23T02:32:07+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (KAPITAN DZHUMANOV and ABIGAIL) maintained close proximity (min 72m, avg 77m) for 30 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 72m, avg 77m |
| Duration | 5/25 | Duration 30 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: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 72.099999999999994315658113919198513031005859375,
"avg_distance_m": 76.7999999999999971578290569595992565155029296875,
"distance_consistency_m": 3.5,
"duration_minutes": 30.5,
"overlap_duration_s": 1829,
"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": "2026-08-23T02:01:38+00:00",
"end": "2026-08-23T02:32:07+00:00"
},
"points_count": {
"vessel_a": 10,
"vessel_b": 10
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 72m, avg 77m"
},
"duration": {
"score": 5,
"max": 25,
"detail": "Duration 30 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (KAPITAN DZHUMANOV and ABIGAIL) maintained close proximity (min 72m, avg 77m) for 30 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.8817987999999985504473443143069744110107421875,
"lon": 30.225314000000000902446117834188044071197509765625
},
"time_window": {
"start_ts": "2026-08-23T02:01:38+00:00",
"end_ts": "2026-08-23T02:32:07+00:00"
},
"searched_at": "2026-08-23T05:00:01.937061+00:00",
"scene_id": "S1C_IW_GRDH_1SDV_20260822T154739_20260822T154804_009110_012160_243F_COG",
"scene_datetime": "2026-08-22T15:47:39.445191Z",
"platform": "sentinel-1c",
"bbox": {
"min_lon": 25.16883500000000140062184073030948638916015625,
"min_lat": 58.8682900000000017826096154749393463134765625,
"max_lon": 30.41223000000000098452801466919481754302978515625,
"max_lat": 60.79593299999999800320438225753605365753173828125
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1099188_thumbnail_20260823050006.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1099188_thumbnail_20260823050006.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Minimum Distance: 71 meters
- Average Distance: 75 meters
- Duration: 3h 49m
- Period: 2026-08-23T01:08:06+00:00 to 2026-08-23T04:57:34+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 70m, avg 75m) for 230 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 75m |
| Duration | 25/25 | Duration 230 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: Ust-Luga/St. Petersburg Approach |
🛰️ Satellite Corroboration
Satellite imagery available but requires review
Preview available for manual review
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"min_distance_m": 70.5,
"avg_distance_m": 75,
"distance_consistency_m": 3.79999999999999982236431605997495353221893310546875,
"duration_minutes": 229.5,
"overlap_duration_s": 13768,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.299999999999999988897769753748434595763683319091796875
}
},
"time_window": {
"start": "2026-08-23T01:08:06+00:00",
"end": "2026-08-23T04:57:34+00:00"
},
"points_count": {
"vessel_a": 10,
"vessel_b": 10
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 75m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 230 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: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 70m, avg 75m) for 230 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
},
"sar": {
"status": "inconclusive",
"centroid": {
"lat": 59.88179079999999743222360848449170589447021484375,
"lon": 30.225306700000000859063220559619367122650146484375
},
"time_window": {
"start_ts": "2026-08-23T01:08:06+00:00",
"end_ts": "2026-08-23T04:57:34+00:00"
},
"searched_at": "2026-08-23T07:45:08.352601+00:00",
"scene_id": "S1D_IW_GRDH_1SDV_20260823T042457_20260823T042522_004248_007CEB_35C1_COG",
"scene_datetime": "2026-08-23T04:24:57.903420Z",
"platform": "sentinel-1d",
"bbox": {
"min_lon": 26.61877799999999893998392508365213871002197265625,
"min_lat": 59.33255799999999879901224630884826183319091796875,
"max_lon": 31.9297100000000000363797880709171295166015625,
"max_lat": 61.26119200000000120098775369115173816680908203125
},
"assets": {
"preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1100308_thumbnail_20260823074512.png",
"stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/08\/event_1100308_thumbnail_20260823074512.png",
"source": "copernicus_dataspace"
},
"notes": "Preview available for manual review"
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 4h 17m
- Data Points: 13 AIS positions
- Period: 2026-08-23T01:08:06+00:00 to 2026-08-23T05:25:09+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 257.1000000000000227373675443232059478759765625,
"points_in_zone": 13,
"first_point": {
"ts": "2026-08-23T01:08:06+00:00",
"lat": 59.88181670000000167419784702360630035400390625,
"lon": 30.2246549999999984947862685658037662506103515625
},
"last_point": {
"ts": "2026-08-23T05:25:09+00:00",
"lat": 59.8880750000000006139089236967265605926513671875,
"lon": 30.163143300000001545413397252559661865234375
}
}- Duration: 4h 3m
- Radius: 1,054 meters
- Data Points: 12 AIS positions
- Centroid: 59.8830, 30.2223
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 1054,
"duration_minutes": 243.19999999999998863131622783839702606201171875,
"points": 12,
"centroid": {
"lat": 59.88295042499999709662006353028118610382080078125,
"lon": 30.2222916583333329754168516956269741058349609375
},
"bbox": {
"min_lat": 59.8818016999999969129930832423269748687744140625,
"min_lon": 30.2069800000000014961187844164669513702392578125,
"max_lat": 59.88868169999999935271262074820697307586669921875,
"max_lon": 30.224683299999998808971213293261826038360595703125
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 15m
- Data Points: 25 AIS positions
- Period: 2026-08-23T00:09:53+00:00 to 2026-08-23T05:25:09+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 315.30000000000001136868377216160297393798828125,
"points_in_zone": 25,
"first_point": {
"ts": "2026-08-23T00:09:53+00:00",
"lat": 59.88183500000000236695996136404573917388916015625,
"lon": 30.224650000000000460431692772544920444488525390625
},
"last_point": {
"ts": "2026-08-23T05:25:09+00:00",
"lat": 59.8880750000000006139089236967265605926513671875,
"lon": 30.163143300000001545413397252559661865234375
}
}- Duration: 5h 1m
- Radius: 1,143 meters
- Data Points: 24 AIS positions
- Centroid: 59.8824, 30.2235
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 1143.09999999999990905052982270717620849609375,
"duration_minutes": 301.3999999999999772626324556767940521240234375,
"points": 24,
"centroid": {
"lat": 59.88239951666668048346764408051967620849609375,
"lon": 30.223462774999998003977452754043042659759521484375
},
"bbox": {
"min_lat": 59.8818016999999969129930832423269748687744140625,
"min_lon": 30.2069800000000014961187844164669513702392578125,
"max_lat": 59.88868169999999935271262074820697307586669921875,
"max_lon": 30.224683299999998808971213293261826038360595703125
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 72 meters
- Average Distance: 76 meters
- Duration: 1h 9m
- Period: 2026-08-23T00:04:19+00:00 to 2026-08-23T01:13:19+00:00
- Vessel A Avg Speed: 0.3 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (KAPITAN DZHUMANOV and ABIGAIL) maintained close proximity (min 72m, avg 76m) for 69 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 72m, avg 76m |
| Duration | 15/25 | Duration 69 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: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 71.7000000000000028421709430404007434844970703125,
"avg_distance_m": 75.7000000000000028421709430404007434844970703125,
"distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
"duration_minutes": 69,
"overlap_duration_s": 4140,
"speed_a_avg": 0.25,
"speed_a_std": 0.190000000000000002220446049250313080847263336181640625,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.25,
"max_sog": 0.8000000000000000444089209850062616169452667236328125
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-08-23T00:04:19+00:00",
"end": "2026-08-23T01:13:19+00:00"
},
"points_count": {
"vessel_a": 21,
"vessel_b": 21
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 85,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 72m, avg 76m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 69 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b13m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (KAPITAN DZHUMANOV and ABIGAIL) maintained close proximity (min 72m, avg 76m) for 69 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Minimum Distance: 24 meters
- Average Distance: 33 meters
- Duration: 1h 16m
- Period: 2026-08-23T00:00:00+00:00 to 2026-08-23T01:16:00+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (DMITRIY RULEVSKIY and ABIGAIL) maintained close proximity (min 24m, avg 32m) for 76 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 Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 24m, avg 32m |
| Duration | 15/25 | Duration 76 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±5m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273424720,
"imo": 8724767,
"name": "DMITRIY RULEVSKIY",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"min_distance_m": 24.199999999999999289457264239899814128875732421875,
"avg_distance_m": 32.5,
"distance_consistency_m": 4.79999999999999982236431605997495353221893310546875,
"duration_minutes": 76,
"overlap_duration_s": 4560,
"speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
"speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-08-23T00:00:00+00:00",
"end": "2026-08-23T01:16:00+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 85,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 24m, avg 32m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 76 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b15m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (DMITRIY RULEVSKIY and ABIGAIL) maintained close proximity (min 24m, avg 32m) for 76 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 Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Minimum Distance: 71 meters
- Average Distance: 81 meters
- Duration: 6h 20m
- Period: 2026-08-22T22:36:54+00:00 to 2026-08-23T04:57:34+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 70m, avg 81m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 81m |
| Duration | 25/25 | Duration 381 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±28m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"min_distance_m": 70.5,
"avg_distance_m": 81.2000000000000028421709430404007434844970703125,
"distance_consistency_m": 27.699999999999999289457264239899814128875732421875,
"duration_minutes": 380.69999999999998863131622783839702606201171875,
"overlap_duration_s": 22840,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.179999999999999993338661852249060757458209991455078125,
"speed_b_std": 0.25,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.179999999999999993338661852249060757458209991455078125,
"max_sog": 0.8000000000000000444089209850062616169452667236328125
}
},
"time_window": {
"start": "2026-08-22T22:36:54+00:00",
"end": "2026-08-23T04:57:34+00:00"
},
"points_count": {
"vessel_a": 23,
"vessel_b": 23
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 81m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 381 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b128m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 70m, avg 81m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 32m
- Data Points: 24 AIS positions
- Period: 2026-08-22T22:36:54+00:00 to 2026-08-23T05:09:04+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 392.19999999999998863131622783839702606201171875,
"points_in_zone": 24,
"first_point": {
"ts": "2026-08-22T22:36:54+00:00",
"lat": 59.88184170000000250411176239140331745147705078125,
"lon": 30.224638299999998736211637151427567005157470703125
},
"last_point": {
"ts": "2026-08-23T05:09:04+00:00",
"lat": 59.88868169999999935271262074820697307586669921875,
"lon": 30.214103300000001439684638171456754207611083984375
}
}- Duration: 6h 32m
- Radius: 924 meters
- Data Points: 24 AIS positions
- Centroid: 59.8821, 30.2242
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 923.700000000000045474735088646411895751953125,
"duration_minutes": 392.19999999999998863131622783839702606201171875,
"points": 24,
"centroid": {
"lat": 59.88212403333335487332078628242015838623046875,
"lon": 30.224198537499997740951585001312196254730224609375
},
"bbox": {
"min_lat": 59.8818016999999969129930832423269748687744140625,
"min_lon": 30.214103300000001439684638171456754207611083984375,
"max_lat": 59.88868169999999935271262074820697307586669921875,
"max_lon": 30.224683299999998808971213293261826038360595703125
},
"zone_id": "russia_ust_luga_approach"
}- Minimum Distance: 72 meters
- Average Distance: 109 meters
- Duration: 6h 19m
- Period: 2026-08-22T21:48:35+00:00 to 2026-08-23T04:08:14+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.2 knots
- Zone: Ust-Luga/St. Petersburg Approach
Confidence Analysis
High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 72m, avg 109m) for 380 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 72m, avg 109m |
| Duration | 25/25 | Duration 380 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 8/15 | Distance variance ±58m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Ust-Luga/St. Petersburg Approach |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 273318420,
"imo": 8411463,
"name": "ABIGAIL",
"flag": "RUSSIA"
},
"vessel_b": {
"mmsi": 273294560,
"imo": 8711760,
"name": "KAPITAN DZHUMANOV",
"flag": "Russia"
},
"min_distance_m": 71.7000000000000028421709430404007434844970703125,
"avg_distance_m": 109.2000000000000028421709430404007434844970703125,
"distance_consistency_m": 58,
"duration_minutes": 379.6000000000000227373675443232059478759765625,
"overlap_duration_s": 22779,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.179999999999999993338661852249060757458209991455078125,
"speed_b_std": 0.25,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.179999999999999993338661852249060757458209991455078125,
"max_sog": 0.8000000000000000444089209850062616169452667236328125
}
},
"time_window": {
"start": "2026-08-22T21:48:35+00:00",
"end": "2026-08-23T04:08:14+00:00"
},
"points_count": {
"vessel_a": 24,
"vessel_b": 24
},
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"score": {
"value": 88,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 72m, avg 109m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 380 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 8,
"max": 15,
"detail": "Distance variance \u00b158m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
}
},
"summary": "High-confidence STS candidate. Two tankers (ABIGAIL and KAPITAN DZHUMANOV) maintained close proximity (min 72m, avg 109m) for 380 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
}
}- Duration: 6h 38m
- Radius: 7 meters
- Data Points: 24 AIS positions
- Centroid: 59.8818, 30.2246
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 7.0999999999999996447286321199499070644378662109375,
"duration_minutes": 398.5,
"points": 24,
"centroid": {
"lat": 59.88184215416668365605801227502524852752685546875,
"lon": 30.224629649999997127451933920383453369140625
},
"bbox": {
"min_lat": 59.881793299999998225757735781371593475341796875,
"min_lon": 30.2245683000000013862518244422972202301025390625,
"max_lat": 59.8818983000000031324816518463194370269775390625,
"max_lon": 30.22466670000000021900632418692111968994140625
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 38m
- Data Points: 24 AIS positions
- Period: 2026-08-22T21:50:45+00:00 to 2026-08-23T04:29:15+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 398.5,
"points_in_zone": 24,
"first_point": {
"ts": "2026-08-22T21:50:45+00:00",
"lat": 59.88182330000000064273990574292838573455810546875,
"lon": 30.224623300000001080434230971150100231170654296875
},
"last_point": {
"ts": "2026-08-23T04:29:15+00:00",
"lat": 59.8818217000000032612661016173660755157470703125,
"lon": 30.2246166999999985591784934513270854949951171875
}
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 1h 49m
- Data Points: 13 AIS positions
- Period: 2026-08-19T04:02:08+00:00 to 2026-08-19T05:51:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 109.7000000000000028421709430404007434844970703125,
"points_in_zone": 13,
"first_point": {
"ts": "2026-08-19T04:02:08+00:00",
"lat": 59.8821149999999988722265698015689849853515625,
"lon": 30.2248282999999986486727721057832241058349609375
},
"last_point": {
"ts": "2026-08-19T05:51:48+00:00",
"lat": 59.88208829999999949222910800017416477203369140625,
"lon": 30.2247832999999985759131959639489650726318359375
}
}- Duration: 1h 49m
- Radius: 4 meters
- Data Points: 13 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 4.0999999999999996447286321199499070644378662109375,
"duration_minutes": 109.7000000000000028421709430404007434844970703125,
"points": 13,
"centroid": {
"lat": 59.88209193846153510776275652460753917694091796875,
"lon": 30.22480896153846430252087884582579135894775390625
},
"bbox": {
"min_lat": 59.88205500000000114368958747945725917816162109375,
"min_lon": 30.224778300000000541558620170690119266510009765625,
"max_lat": 59.8821149999999988722265698015689849853515625,
"max_lon": 30.224848300000001444232111680321395397186279296875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 2h 48m
- Data Points: 21 AIS positions
- Period: 2026-08-19T03:03:08+00:00 to 2026-08-19T05:51:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 168.69999999999998863131622783839702606201171875,
"points_in_zone": 21,
"first_point": {
"ts": "2026-08-19T03:03:08+00:00",
"lat": 59.88211830000000190921127796173095703125,
"lon": 30.224761699999998398880052263848483562469482421875
},
"last_point": {
"ts": "2026-08-19T05:51:48+00:00",
"lat": 59.88208829999999949222910800017416477203369140625,
"lon": 30.2247832999999985759131959639489650726318359375
}
}- Duration: 2h 48m
- Radius: 4 meters
- Data Points: 21 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 4.29999999999999982236431605997495353221893310546875,
"duration_minutes": 168.69999999999998863131622783839702606201171875,
"points": 21,
"centroid": {
"lat": 59.88209286190476632327772676944732666015625,
"lon": 30.224799752380949513508312520571053028106689453125
},
"bbox": {
"min_lat": 59.88205500000000114368958747945725917816162109375,
"min_lon": 30.224761699999998398880052263848483562469482421875,
"max_lat": 59.8821200000000004592948243953287601470947265625,
"max_lon": 30.224848300000001444232111680321395397186279296875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 3h 47m
- Data Points: 29 AIS positions
- Period: 2026-08-19T02:04:07+00:00 to 2026-08-19T05:51:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 227.69999999999998863131622783839702606201171875,
"points_in_zone": 29,
"first_point": {
"ts": "2026-08-19T02:04:07+00:00",
"lat": 59.8820266999999972767909639514982700347900390625,
"lon": 30.22476830000000092013578978367149829864501953125
},
"last_point": {
"ts": "2026-08-19T05:51:48+00:00",
"lat": 59.88208829999999949222910800017416477203369140625,
"lon": 30.2247832999999985759131959639489650726318359375
}
}- Duration: 3h 47m
- Radius: 7 meters
- Data Points: 29 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 7.29999999999999982236431605997495353221893310546875,
"duration_minutes": 227.69999999999998863131622783839702606201171875,
"points": 29,
"centroid": {
"lat": 59.882090927586204998078756034374237060546875,
"lon": 30.22479475862068198921406292356550693511962890625
},
"bbox": {
"min_lat": 59.8820266999999972767909639514982700347900390625,
"min_lon": 30.224753299999999711644704802893102169036865234375,
"max_lat": 59.8821200000000004592948243953287601470947265625,
"max_lon": 30.224848300000001444232111680321395397186279296875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 4h 49m
- Data Points: 38 AIS positions
- Period: 2026-08-19T01:02:47+00:00 to 2026-08-19T05:51:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 289,
"points_in_zone": 38,
"first_point": {
"ts": "2026-08-19T01:02:47+00:00",
"lat": 59.88209330000000107929736259393393993377685546875,
"lon": 30.224833300000000235741026699542999267578125
},
"last_point": {
"ts": "2026-08-19T05:51:48+00:00",
"lat": 59.88208829999999949222910800017416477203369140625,
"lon": 30.2247832999999985759131959639489650726318359375
}
}- Duration: 4h 49m
- Radius: 10 meters
- Data Points: 38 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 9.5999999999999996447286321199499070644378662109375,
"duration_minutes": 289,
"points": 38,
"centroid": {
"lat": 59.88209053421052630028498242609202861785888671875,
"lon": 30.224796478947357769584414199925959110260009765625
},
"bbox": {
"min_lat": 59.88201500000000265799826593138277530670166015625,
"min_lon": 30.224713300000001225953383254818618297576904296875,
"max_lat": 59.88212999999999652800397598184645175933837890625,
"max_lon": 30.224848300000001444232111680321395397186279296875
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 5h 48m
- Data Points: 49 AIS positions
- Period: 2026-08-19T00:03:38+00:00 to 2026-08-19T05:51:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 348.19999999999998863131622783839702606201171875,
"points_in_zone": 49,
"first_point": {
"ts": "2026-08-19T00:03:38+00:00",
"lat": 59.88212829999999797792042954824864864349365234375,
"lon": 30.224836700000000888621798367239534854888916015625
},
"last_point": {
"ts": "2026-08-19T05:51:48+00:00",
"lat": 59.88208829999999949222910800017416477203369140625,
"lon": 30.2247832999999985759131959639489650726318359375
}
}- Duration: 5h 48m
- Radius: 10 meters
- Data Points: 49 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 9.800000000000000710542735760100185871124267578125,
"duration_minutes": 348.19999999999998863131622783839702606201171875,
"points": 49,
"centroid": {
"lat": 59.8820904448979405287900590337812900543212890625,
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},
"bbox": {
"min_lat": 59.88201500000000265799826593138277530670166015625,
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"max_lon": 30.224901700000000204227035283111035823822021484375
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 31m
- Data Points: 58 AIS positions
- Period: 2026-08-18T23:20:47+00:00 to 2026-08-19T05:51:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 391,
"points_in_zone": 58,
"first_point": {
"ts": "2026-08-18T23:20:47+00:00",
"lat": 59.8821267000000005964466254226863384246826171875,
"lon": 30.224811700000000058707882999442517757415771484375
},
"last_point": {
"ts": "2026-08-19T05:51:48+00:00",
"lat": 59.88208829999999949222910800017416477203369140625,
"lon": 30.2247832999999985759131959639489650726318359375
}
}- Duration: 6h 31m
- Radius: 10 meters
- Data Points: 58 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 9.699999999999999289457264239899814128875732421875,
"duration_minutes": 391,
"points": 58,
"centroid": {
"lat": 59.88209029137930627939567784778773784637451171875,
"lon": 30.224801801724137106930356821976602077484130859375
},
"bbox": {
"min_lat": 59.88201500000000265799826593138277530670166015625,
"min_lon": 30.224713300000001225953383254818618297576904296875,
"max_lat": 59.88214330000000273912519332952797412872314453125,
"max_lon": 30.224901700000000204227035283111035823822021484375
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 31m
- Data Points: 59 AIS positions
- Period: 2026-08-18T22:57:47+00:00 to 2026-08-19T05:28:48+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 391,
"points_in_zone": 59,
"first_point": {
"ts": "2026-08-18T22:57:47+00:00",
"lat": 59.88209330000000107929736259393393993377685546875,
"lon": 30.224804999999999921556081972084939479827880859375
},
"last_point": {
"ts": "2026-08-19T05:28:48+00:00",
"lat": 59.88205500000000114368958747945725917816162109375,
"lon": 30.224818299999999027249941718764603137969970703125
}
}- Duration: 6h 31m
- Radius: 10 meters
- Data Points: 59 AIS positions
- Centroid: 59.8821, 30.2248
- Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
"radius_m": 9.800000000000000710542735760100185871124267578125,
"duration_minutes": 391,
"points": 59,
"centroid": {
"lat": 59.882090625423728624809882603585720062255859375,
"lon": 30.224801913559321775437638279981911182403564453125
},
"bbox": {
"min_lat": 59.88201500000000265799826593138277530670166015625,
"min_lon": 30.224713300000001225953383254818618297576904296875,
"max_lat": 59.88214330000000273912519332952797412872314453125,
"max_lon": 30.224901700000000204227035283111035823822021484375
},
"zone_id": "russia_ust_luga_approach"
}- Zone: Ust-Luga/St. Petersburg Approach
- Duration: 6h 30m
- Data Points: 35 AIS positions
- Period: 2026-08-18T19:37:07+00:00 to 2026-08-19T02:07:46+00:00
Show Raw Evidence JSON
{
"zone_id": "russia_ust_luga_approach",
"zone_name": "Ust-Luga\/St. Petersburg Approach",
"dwell_minutes": 390.6000000000000227373675443232059478759765625,
"points_in_zone": 35,
"first_point": {
"ts": "2026-08-18T19:37:07+00:00",
"lat": 59.8821583000000003949025995098054409027099609375,
"lon": 30.224728299999998881730789435096085071563720703125
},
"last_point": {
"ts": "2026-08-19T02:07:46+00:00",
"lat": 59.88208670000000211075530387461185455322265625,
"lon": 30.22476999999999947021933621726930141448974609375
}
}Recent Position Data
| Time (UTC) | Lat | Lon | Speed | Course | Zone |
|---|---|---|---|---|---|
| Sep 22 09:30 | 59.8815 | 30.2254 | 1.5 kn | 256.3° | Ust-Luga/St. Petersburg Approach |
| Sep 22 08:24 | 59.8817 | 30.2270 | 0.0 kn | 314.3° | Ust-Luga/St. Petersburg Approach |
| Sep 21 13:25 | 59.8821 | 30.2248 | 0.0 kn | 342.2° | Ust-Luga/St. Petersburg Approach |
| Sep 21 13:12 | 59.8821 | 30.2248 | 0.0 kn | 10.5° | Ust-Luga/St. Petersburg Approach |
| Sep 21 04:19 | 59.8821 | 30.2248 | 0.0 kn | 355.6° | Ust-Luga/St. Petersburg Approach |
| Sep 20 21:38 | 59.8820 | 30.2248 | 0.0 kn | 158.4° | Ust-Luga/St. Petersburg Approach |
| Sep 17 07:12 | 59.8821 | 30.2248 | 0.0 kn | 45.1° | Ust-Luga/St. Petersburg Approach |
| Sep 11 10:07 | 59.8821 | 30.2248 | 0.0 kn | 325.4° | Ust-Luga/St. Petersburg Approach |
| Sep 11 09:12 | 59.8819 | 30.2248 | 0.0 kn | 317.7° | Ust-Luga/St. Petersburg Approach |
| Sep 11 07:50 | 59.8819 | 30.2249 | 0.0 kn | 279.7° | Ust-Luga/St. Petersburg Approach |
| Sep 11 07:19 | 59.8820 | 30.2249 | 0.0 kn | 48.3° | Ust-Luga/St. Petersburg Approach |
| Sep 11 06:38 | 59.8819 | 30.2248 | 0.0 kn | 328.6° | Ust-Luga/St. Petersburg Approach |
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.
