IMO 9460825
Vessel information
Detected Events (100)
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 4h 56m
- Data Points: 10 AIS positions
- Period: 2026-07-19T19:04:30+00:00 to 2026-07-20T00:00:57+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 296.3999999999999772626324556767940521240234375,
"points_in_zone": 10,
"first_point": {
"ts": "2026-07-19T19:04:30+00:00",
"lat": 31.38713500000000067302607931196689605712890625,
"lon": 32.28368329999999986057446221821010112762451171875
},
"last_point": {
"ts": "2026-07-20T00:00:57+00:00",
"lat": 31.384523300000001455600795452482998371124267578125,
"lon": 32.273736700000000610089045949280261993408203125
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 38m
- Data Points: 15 AIS positions
- Period: 2026-07-19T18:22:48+00:00 to 2026-07-20T00:00:57+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 338.1000000000000227373675443232059478759765625,
"points_in_zone": 15,
"first_point": {
"ts": "2026-07-19T18:22:48+00:00",
"lat": 31.405409999999999826059138285927474498748779296875,
"lon": 32.2608733000000000856744009070098400115966796875
},
"last_point": {
"ts": "2026-07-20T00:00:57+00:00",
"lat": 31.384523300000001455600795452482998371124267578125,
"lon": 32.273736700000000610089045949280261993408203125
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 26m
- Data Points: 20 AIS positions
- Period: 2026-07-19T17:34:51+00:00 to 2026-07-20T00:00:57+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 386.1000000000000227373675443232059478759765625,
"points_in_zone": 20,
"first_point": {
"ts": "2026-07-19T17:34:51+00:00",
"lat": 31.405428300000000518821252626366913318634033203125,
"lon": 32.2609183000000001584339770488440990447998046875
},
"last_point": {
"ts": "2026-07-20T00:00:57+00:00",
"lat": 31.384523300000001455600795452482998371124267578125,
"lon": 32.273736700000000610089045949280261993408203125
}
}- Duration: 1h 39m
- Radius: 82 meters
- Data Points: 12 AIS positions
- Centroid: 31.4055, 32.2609
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 82,
"duration_minutes": 99.7999999999999971578290569595992565155029296875,
"points": 12,
"centroid": {
"lat": 31.405492925000004333924152888357639312744140625,
"lon": 32.26088485833333407981626805849373340606689453125
},
"bbox": {
"min_lat": 31.4054067000000003417881089262664318084716796875,
"min_lon": 32.26055999999999812644091434776782989501953125,
"max_lat": 31.40617830000000054724296205677092075347900390625,
"max_lon": 32.260975000000001955413608811795711517333984375
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 3h 8m
- Data Points: 26 AIS positions
- Period: 2026-07-19T16:37:48+00:00 to 2026-07-19T19:46:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 188.19999999999998863131622783839702606201171875,
"points_in_zone": 26,
"first_point": {
"ts": "2026-07-19T16:37:48+00:00",
"lat": 31.40546499999999952024154481478035449981689453125,
"lon": 32.261020000000002028173184953629970550537109375
},
"last_point": {
"ts": "2026-07-19T19:46:02+00:00",
"lat": 31.377663299999998258726918720640242099761962890625,
"lon": 32.31212670000000031222953111864626407623291015625
}
}- Duration: 2h 3m
- Radius: 84 meters
- Data Points: 15 AIS positions
- Centroid: 31.4055, 32.2609
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 83.7999999999999971578290569595992565155029296875,
"duration_minutes": 123.7999999999999971578290569595992565155029296875,
"points": 15,
"centroid": {
"lat": 31.40548511333333436823522788472473621368408203125,
"lon": 32.26091100000000011505107977427542209625244140625
},
"bbox": {
"min_lat": 31.4054067000000003417881089262664318084716796875,
"min_lon": 32.26055999999999812644091434776782989501953125,
"max_lat": 31.40617830000000054724296205677092075347900390625,
"max_lon": 32.2610217000000005782567313872277736663818359375
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 4h 20m
- Data Points: 31 AIS positions
- Period: 2026-07-19T15:25:47+00:00 to 2026-07-19T19:46:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 260.19999999999998863131622783839702606201171875,
"points_in_zone": 31,
"first_point": {
"ts": "2026-07-19T15:25:47+00:00",
"lat": 31.405446699999998827479430474340915679931640625,
"lon": 32.26102329999999795973053551279008388519287109375
},
"last_point": {
"ts": "2026-07-19T19:46:02+00:00",
"lat": 31.377663299999998258726918720640242099761962890625,
"lon": 32.31212670000000031222953111864626407623291015625
}
}- Duration: 3h 15m
- Radius: 86 meters
- Data Points: 20 AIS positions
- Centroid: 31.4055, 32.2609
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 85.7000000000000028421709430404007434844970703125,
"duration_minutes": 195.900000000000005684341886080801486968994140625,
"points": 20,
"centroid": {
"lat": 31.405476004999997030608938075602054595947265625,
"lon": 32.26093691500000204541720449924468994140625
},
"bbox": {
"min_lat": 31.4054067000000003417881089262664318084716796875,
"min_lon": 32.26055999999999812644091434776782989501953125,
"max_lat": 31.40617830000000054724296205677092075347900390625,
"max_lon": 32.26105830000000196378096006810665130615234375
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 20m
- Data Points: 34 AIS positions
- Period: 2026-07-19T14:25:48+00:00 to 2026-07-19T19:46:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 320.19999999999998863131622783839702606201171875,
"points_in_zone": 34,
"first_point": {
"ts": "2026-07-19T14:25:48+00:00",
"lat": 31.40546499999999952024154481478035449981689453125,
"lon": 32.2610633000000035508492146618664264678955078125
},
"last_point": {
"ts": "2026-07-19T19:46:02+00:00",
"lat": 31.377663299999998258726918720640242099761962890625,
"lon": 32.31212670000000031222953111864626407623291015625
}
}- Duration: 4h 15m
- Radius: 86 meters
- Data Points: 23 AIS positions
- Centroid: 31.4055, 32.2610
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 86.400000000000005684341886080801486968994140625,
"duration_minutes": 255.80000000000001136868377216160297393798828125,
"points": 23,
"centroid": {
"lat": 31.40547587391304062975905253551900386810302734375,
"lon": 32.2609529652173847580343135632574558258056640625
},
"bbox": {
"min_lat": 31.4054067000000003417881089262664318084716796875,
"min_lon": 32.26055999999999812644091434776782989501953125,
"max_lat": 31.40617830000000054724296205677092075347900390625,
"max_lon": 32.261093299999998862404027022421360015869140625
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 29m
- Data Points: 27 AIS positions
- Period: 2026-07-19T12:34:47+00:00 to 2026-07-19T19:04:30+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 389.69999999999998863131622783839702606201171875,
"points_in_zone": 27,
"first_point": {
"ts": "2026-07-19T12:34:47+00:00",
"lat": 31.405956700000000836325853015296161174774169921875,
"lon": 32.2609216999999972586010699160397052764892578125
},
"last_point": {
"ts": "2026-07-19T19:04:30+00:00",
"lat": 31.38713500000000067302607931196689605712890625,
"lon": 32.28368329999999986057446221821010112762451171875
}
}- Duration: 6h 24m
- Radius: 79 meters
- Data Points: 27 AIS positions
- Centroid: 31.4055, 32.2610
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 79.2000000000000028421709430404007434844970703125,
"duration_minutes": 384.80000000000001136868377216160297393798828125,
"points": 27,
"centroid": {
"lat": 31.40554877407407019518359447829425334930419921875,
"lon": 32.26095271481481319142403663136065006256103515625
},
"bbox": {
"min_lat": 31.4054067000000003417881089262664318084716796875,
"min_lon": 32.26055999999999812644091434776782989501953125,
"max_lat": 31.40617830000000054724296205677092075347900390625,
"max_lon": 32.261093299999998862404027022421360015869140625
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 33m
- Data Points: 19 AIS positions
- Period: 2026-07-19T10:40:48+00:00 to 2026-07-19T17:13:52+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 393.1000000000000227373675443232059478759765625,
"points_in_zone": 19,
"first_point": {
"ts": "2026-07-19T10:40:48+00:00",
"lat": 31.4061717000000015787009033374488353729248046875,
"lon": 32.26120329999999825076884008012712001800537109375
},
"last_point": {
"ts": "2026-07-19T17:13:52+00:00",
"lat": 31.405446699999998827479430474340915679931640625,
"lon": 32.26095000000000112549969344399869441986083984375
}
}- Duration: 6h 33m
- Radius: 66 meters
- Data Points: 19 AIS positions
- Centroid: 31.4056, 32.2610
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 66.099999999999994315658113919198513031005859375,
"duration_minutes": 393.1000000000000227373675443232059478759765625,
"points": 19,
"centroid": {
"lat": 31.4055994842105263842313433997333049774169921875,
"lon": 32.26100964736841802960043423809111118316650390625
},
"bbox": {
"min_lat": 31.405423299999998931752998032607138156890869140625,
"min_lon": 32.2609216999999972586010699160397052764892578125,
"max_lat": 31.4061717000000015787009033374488353729248046875,
"max_lon": 32.26120329999999825076884008012712001800537109375
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 9m
- Data Points: 14 AIS positions
- Period: 2026-07-19T09:49:47+00:00 to 2026-07-19T15:58:47+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 369,
"points_in_zone": 14,
"first_point": {
"ts": "2026-07-19T09:49:47+00:00",
"lat": 31.4062617000000017242200556211173534393310546875,
"lon": 32.2612850000000008776623872108757495880126953125
},
"last_point": {
"ts": "2026-07-19T15:58:47+00:00",
"lat": 31.405441700000000793124854681082069873809814453125,
"lon": 32.26100999999999885403667576611042022705078125
}
}- Duration: 6h 9m
- Radius: 65 meters
- Data Points: 14 AIS positions
- Centroid: 31.4057, 32.2610
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 65.2000000000000028421709430404007434844970703125,
"duration_minutes": 369,
"points": 14,
"centroid": {
"lat": 31.405712399999995199095792486332356929779052734375,
"lon": 32.26103904285714207844648626632988452911376953125
},
"bbox": {
"min_lat": 31.405423299999998931752998032607138156890869140625,
"min_lon": 32.2609216999999972586010699160397052764892578125,
"max_lat": 31.4062617000000017242200556211173534393310546875,
"max_lon": 32.2612850000000008776623872108757495880126953125
},
"zone_id": "discovered_025"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 36m
- Data Points: 9 AIS positions
- Period: 2026-07-19T08:01:49+00:00 to 2026-07-19T14:37:49+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 396,
"points_in_zone": 9,
"first_point": {
"ts": "2026-07-19T08:01:49+00:00",
"lat": 31.406355000000001354010237264446914196014404296875,
"lon": 32.26130830000000315749275614507496356964111328125
},
"last_point": {
"ts": "2026-07-19T14:37:49+00:00",
"lat": 31.405499999999999971578290569595992565155029296875,
"lon": 32.261093299999998862404027022421360015869140625
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 39m
- Data Points: 6 AIS positions
- Period: 2026-07-19T05:40:43+00:00 to 2026-07-19T12:19:49+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 399.1000000000000227373675443232059478759765625,
"points_in_zone": 6,
"first_point": {
"ts": "2026-07-19T05:40:43+00:00",
"lat": 31.40640499999999946112438919954001903533935546875,
"lon": 32.26135330000000323025233228690922260284423828125
},
"last_point": {
"ts": "2026-07-19T12:19:49+00:00",
"lat": 31.40596670000000045774868340231478214263916015625,
"lon": 32.26095000000000112549969344399869441986083984375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 48m
- Data Points: 9 AIS positions
- Period: 2026-07-19T04:52:15+00:00 to 2026-07-19T10:40:48+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 348.6000000000000227373675443232059478759765625,
"points_in_zone": 9,
"first_point": {
"ts": "2026-07-19T04:52:15+00:00",
"lat": 31.365648300000000148202161653898656368255615234375,
"lon": 32.31311000000000177578840521164238452911376953125
},
"last_point": {
"ts": "2026-07-19T10:40:48+00:00",
"lat": 31.4061717000000015787009033374488353729248046875,
"lon": 32.26120329999999825076884008012712001800537109375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 19m
- Data Points: 7 AIS positions
- Period: 2026-07-19T00:21:31+00:00 to 2026-07-19T05:40:43+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 319.19999999999998863131622783839702606201171875,
"points_in_zone": 7,
"first_point": {
"ts": "2026-07-19T00:21:31+00:00",
"lat": 31.3653316999999987046976457349956035614013671875,
"lon": 32.313074999999997771737980656325817108154296875
},
"last_point": {
"ts": "2026-07-19T05:40:43+00:00",
"lat": 31.40640499999999946112438919954001903533935546875,
"lon": 32.26135330000000323025233228690922260284423828125
}
}- Minimum Distance: 45 meters
- Average Distance: 52 meters
- Duration: 5h 13m
- Period: 2026-07-18T23:38:55+00:00 to 2026-07-19T04:52:15+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (DILOS and ADAM) maintained close proximity (min 45m, avg 52m) for 313 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 Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 45m, avg 52m |
| Duration | 25/25 | Duration 313 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: Black Sea Sanctioned Vessel Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636018688,
"imo": 9826732,
"name": "ADAM",
"flag": "LIBERIA"
},
"min_distance_m": 45.10000000000000142108547152020037174224853515625,
"avg_distance_m": 51.5,
"distance_consistency_m": 5.5,
"duration_minutes": 313.30000000000001136868377216160297393798828125,
"overlap_duration_s": 18800,
"speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-07-18T23:38:55+00:00",
"end": "2026-07-19T04:52:15+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 45m, avg 52m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 313 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: Black Sea Sanctioned Vessel Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (DILOS and ADAM) maintained close proximity (min 45m, avg 52m) for 313 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 Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 24m
- Data Points: 11 AIS positions
- Period: 2026-07-18T23:16:36+00:00 to 2026-07-19T05:40:43+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 384.1000000000000227373675443232059478759765625,
"points_in_zone": 11,
"first_point": {
"ts": "2026-07-18T23:16:36+00:00",
"lat": 31.3632716999999985318936523981392383575439453125,
"lon": 32.3245433000000019774233805947005748748779296875
},
"last_point": {
"ts": "2026-07-19T05:40:43+00:00",
"lat": 31.40640499999999946112438919954001903533935546875,
"lon": 32.26135330000000323025233228690922260284423828125
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 1h 55m
- Data Points: 6 AIS positions
- Period: 2026-07-18T17:06:52+00:00 to 2026-07-18T19:02:37+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 115.7999999999999971578290569595992565155029296875,
"points_in_zone": 6,
"first_point": {
"ts": "2026-07-18T17:06:52+00:00",
"lat": 31.45758670000000023492248146794736385345458984375,
"lon": 32.30783170000000126265149447135627269744873046875
},
"last_point": {
"ts": "2026-07-18T19:02:37+00:00",
"lat": 31.45819829999999939218469080515205860137939453125,
"lon": 32.30766330000000152722350321710109710693359375
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 2h 45m
- Data Points: 17 AIS positions
- Period: 2026-07-18T17:06:52+00:00 to 2026-07-18T19:52:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
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}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 2h 52m
- Data Points: 10 AIS positions
- Period: 2026-07-18T16:09:53+00:00 to 2026-07-18T19:02:37+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
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"dwell_minutes": 172.69999999999998863131622783839702606201171875,
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}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 3h 42m
- Data Points: 21 AIS positions
- Period: 2026-07-18T16:09:53+00:00 to 2026-07-18T19:52:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
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}
}- Duration: 2h 52m
- Radius: 85 meters
- Data Points: 10 AIS positions
- Centroid: 31.4577, 32.3079
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 84.5,
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}- Duration: 2h 52m
- Radius: 85 meters
- Data Points: 10 AIS positions
- Centroid: 31.4577, 32.3079
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 84.5,
"duration_minutes": 172.69999999999998863131622783839702606201171875,
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"zone_id": "discovered_156"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 3h 43m
- Data Points: 12 AIS positions
- Period: 2026-07-18T15:18:56+00:00 to 2026-07-18T19:02:37+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 223.69999999999998863131622783839702606201171875,
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}- Zone: Western Black Sea Surveillance Zone
- Duration: 4h 33m
- Data Points: 23 AIS positions
- Period: 2026-07-18T15:18:56+00:00 to 2026-07-18T19:52:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 273.69999999999998863131622783839702606201171875,
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}
}- Duration: 3h 43m
- Radius: 85 meters
- Data Points: 12 AIS positions
- Centroid: 31.4577, 32.3079
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 85.2999999999999971578290569595992565155029296875,
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},
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}- Duration: 3h 43m
- Radius: 85 meters
- Data Points: 12 AIS positions
- Centroid: 31.4577, 32.3079
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 85.2999999999999971578290569595992565155029296875,
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},
"zone_id": "discovered_156"
}- Duration: 5h 24m
- Radius: 252 meters
- Data Points: 12 AIS positions
- Centroid: 31.4576, 32.3082
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
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}- Duration: 5h 24m
- Radius: 252 meters
- Data Points: 12 AIS positions
- Centroid: 31.4576, 32.3082
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 252.400000000000005684341886080801486968994140625,
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"zone_id": "discovered_156"
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 48m
- Data Points: 14 AIS positions
- Period: 2026-07-18T12:03:34+00:00 to 2026-07-18T17:51:38+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 348.1000000000000227373675443232059478759765625,
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}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 5h 48m
- Data Points: 14 AIS positions
- Period: 2026-07-18T12:03:34+00:00 to 2026-07-18T17:51:38+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 348.1000000000000227373675443232059478759765625,
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}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 2h 4m
- Data Points: 8 AIS positions
- Period: 2026-07-17T23:00:06+00:00 to 2026-07-18T01:04:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 124.7999999999999971578290569595992565155029296875,
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}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 2h 13m
- Data Points: 9 AIS positions
- Period: 2026-07-17T22:51:01+00:00 to 2026-07-18T01:04:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 133.900000000000005684341886080801486968994140625,
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"first_point": {
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}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 3h 55m
- Data Points: 12 AIS positions
- Period: 2026-07-17T21:09:04+00:00 to 2026-07-18T01:04:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 235.900000000000005684341886080801486968994140625,
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"first_point": {
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}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 4h 58m
- Data Points: 15 AIS positions
- Period: 2026-07-17T20:06:03+00:00 to 2026-07-18T01:04:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 298.8999999999999772626324556767940521240234375,
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}
}- Duration: 4h 12m
- Radius: 81 meters
- Data Points: 12 AIS positions
- Centroid: 31.4071, 32.2611
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 81.2000000000000028421709430404007434844970703125,
"duration_minutes": 252.099999999999994315658113919198513031005859375,
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}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 28m
- Data Points: 17 AIS positions
- Period: 2026-07-17T19:36:02+00:00 to 2026-07-18T01:04:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 328.8999999999999772626324556767940521240234375,
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}
}- Duration: 4h 42m
- Radius: 83 meters
- Data Points: 14 AIS positions
- Centroid: 31.4071, 32.2611
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 83.2000000000000028421709430404007434844970703125,
"duration_minutes": 282.1000000000000227373675443232059478759765625,
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},
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}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 6m
- Data Points: 15 AIS positions
- Period: 2026-07-17T18:12:06+00:00 to 2026-07-18T00:18:06+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 366,
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"first_point": {
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}
}- Duration: 6h 6m
- Radius: 84 meters
- Data Points: 15 AIS positions
- Centroid: 31.4071, 32.2611
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 84.099999999999994315658113919198513031005859375,
"duration_minutes": 366,
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},
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}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 27m
- Data Points: 17 AIS positions
- Period: 2026-07-17T17:50:57+00:00 to 2026-07-18T00:18:06+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 387.1000000000000227373675443232059478759765625,
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}
}- Duration: 6h 27m
- Radius: 86 meters
- Data Points: 17 AIS positions
- Centroid: 31.4070, 32.2611
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 85.5,
"duration_minutes": 387.1000000000000227373675443232059478759765625,
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},
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}- Duration: 6h 29m
- Radius: 93 meters
- Data Points: 18 AIS positions
- Centroid: 31.4070, 32.2611
- Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 93.2999999999999971578290569595992565155029296875,
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}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 29m
- Data Points: 18 AIS positions
- Period: 2026-07-17T16:30:27+00:00 to 2026-07-17T23:00:06+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
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"dwell_minutes": 389.6000000000000227373675443232059478759765625,
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"ts": "2026-07-17T23:00:06+00:00",
"lat": 31.407011700000001752641765051521360874176025390625,
"lon": 32.26121499999999997498889570124447345733642578125
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 1h 23m
- Data Points: 14 AIS positions
- Period: 2026-07-17T15:00:20+00:00 to 2026-07-17T16:23:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 83.2999999999999971578290569595992565155029296875,
"points_in_zone": 14,
"first_point": {
"ts": "2026-07-17T15:00:20+00:00",
"lat": 31.448995000000000032969182939268648624420166015625,
"lon": 32.4355283000000014226316125132143497467041015625
},
"last_point": {
"ts": "2026-07-17T16:23:39+00:00",
"lat": 31.404984999999999928377292235381901264190673828125,
"lon": 32.27168999999999954297891235910356044769287109375
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 1h 59m
- Data Points: 24 AIS positions
- Period: 2026-07-17T14:23:49+00:00 to 2026-07-17T16:23:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 119.7999999999999971578290569595992565155029296875,
"points_in_zone": 24,
"first_point": {
"ts": "2026-07-17T14:23:49+00:00",
"lat": 31.441191700000000963655111263506114482879638671875,
"lon": 32.4797999999999973397279973141849040985107421875
},
"last_point": {
"ts": "2026-07-17T16:23:39+00:00",
"lat": 31.404984999999999928377292235381901264190673828125,
"lon": 32.27168999999999954297891235910356044769287109375
}
}- Minimum Distance: 76 meters
- Average Distance: 80 meters
- Duration: 40 minutes
- Period: 2026-07-17T11:07:43+00:00 to 2026-07-17T11:47:54+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Western Black Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (DILOS and CRONUS) maintained close proximity (min 76m, avg 80m) for 40 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 Western Black Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 80m |
| Duration | 5/25 | Duration 40 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: Western Black Sea Surveillance Zone |
🛰️ 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": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636023785,
"imo": 9337016,
"name": "CRONUS",
"flag": "LIBERIA"
},
"min_distance_m": 76.400000000000005684341886080801486968994140625,
"avg_distance_m": 80.2999999999999971578290569595992565155029296875,
"distance_consistency_m": 2.29999999999999982236431605997495353221893310546875,
"duration_minutes": 40.2000000000000028421709430404007434844970703125,
"overlap_duration_s": 2411,
"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": "2026-07-17T11:07:43+00:00",
"end": "2026-07-17T11:47:54+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 80m"
},
"duration": {
"score": 5,
"max": 25,
"detail": "Duration 40 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: Western Black Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (DILOS and CRONUS) maintained close proximity (min 76m, avg 80m) for 40 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 Western Black Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 31.44143890000000141071723191998898983001708984375,
"lon": 32.480469999999996844053384847939014434814453125
},
"time_window": {
"start_ts": "2026-07-17T11:07:43+00:00",
"end_ts": "2026-07-17T11:47:54+00:00"
},
"searched_at": "2026-07-17T17:30:05.236883+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 5h 22m
- Data Points: 30 AIS positions
- Period: 2026-07-17T11:01:04+00:00 to 2026-07-17T16:23:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 322.6000000000000227373675443232059478759765625,
"points_in_zone": 30,
"first_point": {
"ts": "2026-07-17T11:01:04+00:00",
"lat": 31.44191169999999857509465073235332965850830078125,
"lon": 32.48025830000000269137672148644924163818359375
},
"last_point": {
"ts": "2026-07-17T16:23:39+00:00",
"lat": 31.404984999999999928377292235381901264190673828125,
"lon": 32.27168999999999954297891235910356044769287109375
}
}- Duration: 3h 42m
- Radius: 923 meters
- Data Points: 11 AIS positions
- Centroid: 31.4418, 32.4791
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 923.299999999999954525264911353588104248046875,
"duration_minutes": 222.80000000000001136868377216160297393798828125,
"points": 11,
"centroid": {
"lat": 31.44176803636363359828465036116540431976318359375,
"lon": 32.4791191000000054600604926235973834991455078125
},
"bbox": {
"min_lat": 31.441071699999998401153789018280804157257080078125,
"min_lon": 32.469909999999998717612470500171184539794921875,
"max_lat": 31.44441499999999933834260446019470691680908203125,
"max_lon": 32.480265000000002828528522513806819915771484375
},
"zone_id": "discovered_156"
}- Minimum Distance: 76 meters
- Average Distance: 81 meters
- Duration: 51 minutes
- Period: 2026-07-17T10:56:44+00:00 to 2026-07-17T11:47:54+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Western Black Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (DILOS and CRONUS) maintained close proximity (min 76m, avg 81m) 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 Western Black Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 81m |
| Duration | 10/25 | Duration 51 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: Western Black Sea Surveillance Zone |
🛰️ 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": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636023785,
"imo": 9337016,
"name": "CRONUS",
"flag": "LIBERIA"
},
"min_distance_m": 76.400000000000005684341886080801486968994140625,
"avg_distance_m": 80.7000000000000028421709430404007434844970703125,
"distance_consistency_m": 2,
"duration_minutes": 51.2000000000000028421709430404007434844970703125,
"overlap_duration_s": 3070,
"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": "2026-07-17T10:56:44+00:00",
"end": "2026-07-17T11:47:54+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 81m"
},
"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 \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Western Black Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (DILOS and CRONUS) maintained close proximity (min 76m, avg 81m) 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 Western Black Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 31.44184080000000136578819365240633487701416015625,
"lon": 32.4806616999999988593117450363934040069580078125
},
"time_window": {
"start_ts": "2026-07-17T10:01:25+00:00",
"end_ts": "2026-07-17T11:47:54+00:00"
},
"searched_at": "2026-07-17T12:15:07.436032+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 6h 22m
- Data Points: 40 AIS positions
- Period: 2026-07-17T10:01:25+00:00 to 2026-07-17T16:23:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 382.19999999999998863131622783839702606201171875,
"points_in_zone": 40,
"first_point": {
"ts": "2026-07-17T10:01:25+00:00",
"lat": 31.442121700000001283115125261247158050537109375,
"lon": 32.4803567000000015241312212310731410980224609375
},
"last_point": {
"ts": "2026-07-17T16:23:39+00:00",
"lat": 31.404984999999999928377292235381901264190673828125,
"lon": 32.27168999999999954297891235910356044769287109375
}
}- Duration: 4h 42m
- Radius: 971 meters
- Data Points: 21 AIS positions
- Centroid: 31.4419, 32.4797
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 971.200000000000045474735088646411895751953125,
"duration_minutes": 282.3999999999999772626324556767940521240234375,
"points": 21,
"centroid": {
"lat": 31.44189325714285843105244566686451435089111328125,
"lon": 32.4796936619047613703514798544347286224365234375
},
"bbox": {
"min_lat": 31.441071699999998401153789018280804157257080078125,
"min_lon": 32.469909999999998717612470500171184539794921875,
"max_lat": 31.44441499999999933834260446019470691680908203125,
"max_lon": 32.48036669999999759284037281759083271026611328125
},
"zone_id": "discovered_156"
}- Zone: Western Black Sea Surveillance Zone
- Duration: 6h 35m
- Data Points: 41 AIS positions
- Period: 2026-07-17T09:41:33+00:00 to 2026-07-17T16:17:09+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 395.6000000000000227373675443232059478759765625,
"points_in_zone": 41,
"first_point": {
"ts": "2026-07-17T09:41:33+00:00",
"lat": 31.442118300000000630234353593550622463226318359375,
"lon": 32.4803433000000012498276191763579845428466796875
},
"last_point": {
"ts": "2026-07-17T16:17:09+00:00",
"lat": 31.4023667000000017424099496565759181976318359375,
"lon": 32.2842016999999970039425534196197986602783203125
}
}- Duration: 5h 41m
- Radius: 989 meters
- Data Points: 32 AIS positions
- Centroid: 31.4420, 32.4799
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 988.5,
"duration_minutes": 341.8999999999999772626324556767940521240234375,
"points": 32,
"centroid": {
"lat": 31.441998543750006689379006274975836277008056640625,
"lon": 32.4799199062500036916389944963157176971435546875
},
"bbox": {
"min_lat": 31.441071699999998401153789018280804157257080078125,
"min_lon": 32.469909999999998717612470500171184539794921875,
"max_lat": 31.44441499999999933834260446019470691680908203125,
"max_lon": 32.48036830000000207974153454415500164031982421875
},
"zone_id": "discovered_156"
}- Minimum Distance: 76 meters
- Average Distance: 80 meters
- Duration: 3h 43m
- Period: 2026-07-17T08:02:32+00:00 to 2026-07-17T11:46:09+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Western Black Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 76m, avg 80m) for 224 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 Western Black Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 80m |
| Duration | 25/25 | Duration 224 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: Western Black Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 636023785,
"imo": 9337016,
"name": "CRONUS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"min_distance_m": 75.5,
"avg_distance_m": 80.400000000000005684341886080801486968994140625,
"distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
"duration_minutes": 223.599999999999994315658113919198513031005859375,
"overlap_duration_s": 13417,
"speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
"speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-07-17T08:02:32+00:00",
"end": "2026-07-17T11:46:09+00:00"
},
"points_count": {
"vessel_a": 15,
"vessel_b": 15
},
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 80m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 224 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: Western Black Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 76m, avg 80m) for 224 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 Western Black Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 6h 36m
- Data Points: 49 AIS positions
- Period: 2026-07-17T08:51:12+00:00 to 2026-07-17T15:27:50+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 396.6000000000000227373675443232059478759765625,
"points_in_zone": 49,
"first_point": {
"ts": "2026-07-17T08:51:12+00:00",
"lat": 31.442313299999998577050064341165125370025634765625,
"lon": 32.48037500000000221689333557151257991790771484375
},
"last_point": {
"ts": "2026-07-17T15:27:50+00:00",
"lat": 31.439886699999998853627403150312602519989013671875,
"lon": 32.37982670000000240406734519638121128082275390625
}
}- Duration: 6h 31m
- Radius: 995 meters
- Data Points: 40 AIS positions
- Centroid: 31.4421, 32.4800
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 995.1000000000000227373675443232059478759765625,
"duration_minutes": 391.1000000000000227373675443232059478759765625,
"points": 40,
"centroid": {
"lat": 31.44205046000001146921931649558246135711669921875,
"lon": 32.4800086350000043466934585012495517730712890625
},
"bbox": {
"min_lat": 31.441071699999998401153789018280804157257080078125,
"min_lon": 32.469909999999998717612470500171184539794921875,
"max_lat": 31.44441499999999933834260446019470691680908203125,
"max_lon": 32.480379999999996698534232564270496368408203125
},
"zone_id": "discovered_156"
}- Minimum Distance: 76 meters
- Average Distance: 80 meters
- Duration: 4h 32m
- Period: 2026-07-17T07:14:09+00:00 to 2026-07-17T11:46:09+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Western Black Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 76m, avg 80m) for 272 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 Western Black Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 80m |
| Duration | 25/25 | Duration 272 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: Western Black Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 636023785,
"imo": 9337016,
"name": "CRONUS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"min_distance_m": 75.5,
"avg_distance_m": 80.2999999999999971578290569595992565155029296875,
"distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
"duration_minutes": 272,
"overlap_duration_s": 16320,
"speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
"speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
"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": "2026-07-17T07:14:09+00:00",
"end": "2026-07-17T11:46:09+00:00"
},
"points_count": {
"vessel_a": 18,
"vessel_b": 18
},
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 80m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 272 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: Western Black Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 76m, avg 80m) for 272 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 Western Black Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 6h 36m
- Data Points: 42 AIS positions
- Period: 2026-07-17T07:51:44+00:00 to 2026-07-17T14:28:00+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 396.30000000000001136868377216160297393798828125,
"points_in_zone": 42,
"first_point": {
"ts": "2026-07-17T07:51:44+00:00",
"lat": 31.442203299999999188685251283459365367889404296875,
"lon": 32.48035999999999745568857179023325443267822265625
},
"last_point": {
"ts": "2026-07-17T14:28:00+00:00",
"lat": 31.441113300000001373746272292919456958770751953125,
"lon": 32.47979169999999982110239216126501560211181640625
}
}- Duration: 6h 36m
- Radius: 112 meters
- Data Points: 42 AIS positions
- Centroid: 31.4420, 32.4803
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 112.2000000000000028421709430404007434844970703125,
"duration_minutes": 396.30000000000001136868377216160297393798828125,
"points": 42,
"centroid": {
"lat": 31.442031588095250782544098910875618457794189453125,
"lon": 32.48028834285714339102923986501991748809814453125
},
"bbox": {
"min_lat": 31.441113300000001373746272292919456958770751953125,
"min_lon": 32.47979169999999982110239216126501560211181640625,
"max_lat": 31.44231669999999922993083600886166095733642578125,
"max_lon": 32.480379999999996698534232564270496368408203125
},
"zone_id": "discovered_156"
}- Zone: Western Black Sea Surveillance Zone
- Duration: 5h 46m
- Data Points: 47 AIS positions
- Period: 2026-07-17T06:01:12+00:00 to 2026-07-17T11:47:54+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 346.69999999999998863131622783839702606201171875,
"points_in_zone": 47,
"first_point": {
"ts": "2026-07-17T06:01:12+00:00",
"lat": 31.442229999999998568682713084854185581207275390625,
"lon": 32.4804366999999984955138643272221088409423828125
},
"last_point": {
"ts": "2026-07-17T11:47:54+00:00",
"lat": 31.4416666999999989684511092491447925567626953125,
"lon": 32.4801700000000010959411156363785266876220703125
}
}- Duration: 5h 46m
- Radius: 52 meters
- Data Points: 47 AIS positions
- Centroid: 31.4421, 32.4803
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 51.7999999999999971578290569595992565155029296875,
"duration_minutes": 346.69999999999998863131622783839702606201171875,
"points": 47,
"centroid": {
"lat": 31.442112446808511805329544586129486560821533203125,
"lon": 32.4803337659574395956951775588095188140869140625
},
"bbox": {
"min_lat": 31.4416666999999989684511092491447925567626953125,
"min_lon": 32.4801700000000010959411156363785266876220703125,
"max_lat": 31.44231669999999922993083600886166095733642578125,
"max_lon": 32.4804366999999984955138643272221088409423828125
},
"zone_id": "discovered_156"
}- Minimum Distance: 76 meters
- Average Distance: 80 meters
- Duration: 5h 59m
- Period: 2026-07-17T05:46:34+00:00 to 2026-07-17T11:46:09+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Western Black Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 76m, avg 80m) for 360 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 Western Black Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 80m |
| Duration | 25/25 | Duration 360 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: Western Black Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 636023785,
"imo": 9337016,
"name": "CRONUS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"min_distance_m": 75.5,
"avg_distance_m": 80.2999999999999971578290569595992565155029296875,
"distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
"duration_minutes": 359.6000000000000227373675443232059478759765625,
"overlap_duration_s": 21575,
"speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
"speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
"speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
"speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
"max_sog": 0.200000000000000011102230246251565404236316680908203125
}
},
"time_window": {
"start": "2026-07-17T05:46:34+00:00",
"end": "2026-07-17T11:46:09+00:00"
},
"points_count": {
"vessel_a": 19,
"vessel_b": 19
},
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 80m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 360 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: Western Black Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 76m, avg 80m) for 360 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 Western Black Sea Surveillance Zone, a known STS activity area."
}
}- Duration: 6h 20m
- Radius: 1,203 meters
- Data Points: 53 AIS positions
- Centroid: 31.4420, 32.4809
- Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 1202.59999999999990905052982270717620849609375,
"duration_minutes": 380.3999999999999772626324556767940521240234375,
"points": 53,
"centroid": {
"lat": 31.4419546849056672499500564299523830413818359375,
"lon": 32.48089066603773034103141981177031993865966796875
},
"bbox": {
"min_lat": 31.437258299999999877627487876452505588531494140625,
"min_lon": 32.4801700000000010959411156363785266876220703125,
"max_lat": 31.443020000000000635509422863833606243133544921875,
"max_lon": 32.492293300000000044747139327228069305419921875
},
"zone_id": "discovered_156"
}- Zone: Western Black Sea Surveillance Zone
- Duration: 6h 20m
- Data Points: 53 AIS positions
- Period: 2026-07-17T05:27:27+00:00 to 2026-07-17T11:47:54+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 380.3999999999999772626324556767940521240234375,
"points_in_zone": 53,
"first_point": {
"ts": "2026-07-17T05:27:27+00:00",
"lat": 31.437258299999999877627487876452505588531494140625,
"lon": 32.492293300000000044747139327228069305419921875
},
"last_point": {
"ts": "2026-07-17T11:47:54+00:00",
"lat": 31.4416666999999989684511092491447925567626953125,
"lon": 32.4801700000000010959411156363785266876220703125
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 1h 14m
- Data Points: 8 AIS positions
- Period: 2026-07-16T18:20:54+00:00 to 2026-07-16T19:35:24+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 74.5,
"points_in_zone": 8,
"first_point": {
"ts": "2026-07-16T18:20:54+00:00",
"lat": 31.731326700000000329282556776888668537139892578125,
"lon": 30.930531699999999517558535444550216197967529296875
},
"last_point": {
"ts": "2026-07-16T19:35:24+00:00",
"lat": 31.746649999999998925659383530728518962860107421875,
"lon": 31.1314382999999992307493812404572963714599609375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 3h 14m
- Data Points: 12 AIS positions
- Period: 2026-07-11T14:02:55+00:00 to 2026-07-11T17:17:35+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 194.69999999999998863131622783839702606201171875,
"points_in_zone": 12,
"first_point": {
"ts": "2026-07-11T14:02:55+00:00",
"lat": 31.75346329999999994697645888663828372955322265625,
"lon": 31.37404670000000095342329586856067180633544921875
},
"last_point": {
"ts": "2026-07-11T17:17:35+00:00",
"lat": 31.735125000000000028421709430404007434844970703125,
"lon": 30.92906169999999832498360774479806423187255859375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 4m
- Data Points: 18 AIS positions
- Period: 2026-07-11T12:12:45+00:00 to 2026-07-11T17:17:35+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 304.80000000000001136868377216160297393798828125,
"points_in_zone": 18,
"first_point": {
"ts": "2026-07-11T12:12:45+00:00",
"lat": 31.759151700000000317913873004727065563201904296875,
"lon": 31.616466700000000145109879667870700359344482421875
},
"last_point": {
"ts": "2026-07-11T17:17:35+00:00",
"lat": 31.735125000000000028421709430404007434844970703125,
"lon": 30.92906169999999832498360774479806423187255859375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 5h 56m
- Data Points: 24 AIS positions
- Period: 2026-07-11T11:21:33+00:00 to 2026-07-11T17:17:35+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 356,
"points_in_zone": 24,
"first_point": {
"ts": "2026-07-11T11:21:33+00:00",
"lat": 31.68864669999999961191861075349152088165283203125,
"lon": 31.6874600000000015143086784519255161285400390625
},
"last_point": {
"ts": "2026-07-11T17:17:35+00:00",
"lat": 31.735125000000000028421709430404007434844970703125,
"lon": 30.92906169999999832498360774479806423187255859375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 6h 24m
- Data Points: 26 AIS positions
- Period: 2026-07-11T10:53:34+00:00 to 2026-07-11T17:17:35+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 384,
"points_in_zone": 26,
"first_point": {
"ts": "2026-07-11T10:53:34+00:00",
"lat": 31.63669829999999905112417764030396938323974609375,
"lon": 31.7106050000000010413714335300028324127197265625
},
"last_point": {
"ts": "2026-07-11T17:17:35+00:00",
"lat": 31.735125000000000028421709430404007434844970703125,
"lon": 30.92906169999999832498360774479806423187255859375
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 1 hours
- Data Points: 5 AIS positions
- Period: 2026-07-09T23:20:26+00:00 to 2026-07-10T00:20:26+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 60,
"points_in_zone": 5,
"first_point": {
"ts": "2026-07-09T23:20:26+00:00",
"lat": 31.3803367000000008602000889368355274200439453125,
"lon": 32.27544329999999916935848887078464031219482421875
},
"last_point": {
"ts": "2026-07-10T00:20:26+00:00",
"lat": 31.38031670000000161735442816279828548431396484375,
"lon": 32.2755183000000016591002349741756916046142578125
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 1h 51m
- Data Points: 6 AIS positions
- Period: 2026-07-09T22:29:26+00:00 to 2026-07-10T00:20:26+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 111,
"points_in_zone": 6,
"first_point": {
"ts": "2026-07-09T22:29:26+00:00",
"lat": 31.38037669999999934589141048491001129150390625,
"lon": 32.275568300000003318928065709769725799560546875
},
"last_point": {
"ts": "2026-07-10T00:20:26+00:00",
"lat": 31.38031670000000161735442816279828548431396484375,
"lon": 32.2755183000000016591002349741756916046142578125
}
}- Zone: Western Black Sea Surveillance Zone
- Duration: 2h 56m
- Data Points: 2 AIS positions
- Period: 2026-07-09T15:40:59+00:00 to 2026-07-09T18:37:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_156",
"zone_name": "Western Black Sea Surveillance Zone",
"dwell_minutes": 176.099999999999994315658113919198513031005859375,
"points_in_zone": 2,
"first_point": {
"ts": "2026-07-09T15:40:59+00:00",
"lat": 31.439685000000000769659891375340521335601806640625,
"lon": 32.4793700000000029604052542708814144134521484375
},
"last_point": {
"ts": "2026-07-09T18:37:02+00:00",
"lat": 31.441803300000000120917320600710809230804443359375,
"lon": 32.47553330000000215704858419485390186309814453125
}
}- Zone: Black Sea Sanctioned Vessel Monitoring Zone
- Duration: 1h 27m
- Data Points: 7 AIS positions
- Period: 2026-07-04T10:30:08+00:00 to 2026-07-04T11:57:37+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_025",
"zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
"dwell_minutes": 87.5,
"points_in_zone": 7,
"first_point": {
"ts": "2026-07-04T10:30:08+00:00",
"lat": 31.396119999999999805595507496036589145660400390625,
"lon": 32.26373499999999694409780204296112060546875
},
"last_point": {
"ts": "2026-07-04T11:57:37+00:00",
"lat": 31.396041700000001384296410833485424518585205078125,
"lon": 32.26366170000000010986695997416973114013671875
}
}- Zone: discovered_020
- Duration: 1h 41m
- Data Points: 4 AIS positions
- Period: 2026-06-17T20:14:16+00:00 to 2026-06-17T21:55:23+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 101.099999999999994315658113919198513031005859375,
"points_in_zone": 4,
"first_point": {
"ts": "2026-06-17T20:14:16+00:00",
"lat": 31.5555650000000014188117347657680511474609375,
"lon": 32.36840670000000130812622956000268459320068359375
},
"last_point": {
"ts": "2026-06-17T21:55:23+00:00",
"lat": 31.5877933000000012953023542650043964385986328125,
"lon": 32.174606699999998227212927304208278656005859375
}
}- Zone: discovered_020
- Duration: 6h 20m
- Data Points: 9 AIS positions
- Period: 2026-06-17T14:03:56+00:00 to 2026-06-17T20:24:05+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 380.1000000000000227373675443232059478759765625,
"points_in_zone": 9,
"first_point": {
"ts": "2026-06-17T14:03:56+00:00",
"lat": 31.541418300000000130012267618440091609954833984375,
"lon": 32.3767883000000011861629900522530078887939453125
},
"last_point": {
"ts": "2026-06-17T20:24:05+00:00",
"lat": 31.557301700000000010959411156363785266876220703125,
"lon": 32.36723330000000231621015700511634349822998046875
}
}- Zone: discovered_020
- Duration: 6h 32m
- Data Points: 12 AIS positions
- Period: 2026-06-17T13:51:46+00:00 to 2026-06-17T20:24:05+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 392.30000000000001136868377216160297393798828125,
"points_in_zone": 12,
"first_point": {
"ts": "2026-06-17T13:51:46+00:00",
"lat": 31.540964999999999918145476840436458587646484375,
"lon": 32.37709670000000272693796432577073574066162109375
},
"last_point": {
"ts": "2026-06-17T20:24:05+00:00",
"lat": 31.557301700000000010959411156363785266876220703125,
"lon": 32.36723330000000231621015700511634349822998046875
}
}- Zone: discovered_020
- Duration: 1h 52m
- Data Points: 19 AIS positions
- Period: 2026-06-17T12:39:06+00:00 to 2026-06-17T14:31:54+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 112.7999999999999971578290569595992565155029296875,
"points_in_zone": 19,
"first_point": {
"ts": "2026-06-17T12:39:06+00:00",
"lat": 31.471174999999998789235178264789283275604248046875,
"lon": 32.3267783000000008541974239051342010498046875
},
"last_point": {
"ts": "2026-06-17T14:31:54+00:00",
"lat": 31.547536699999998432986103580333292484283447265625,
"lon": 32.37337500000000289901436190120875835418701171875
}
}- Zone: discovered_020
- Duration: 2h 1m
- Data Points: 4 AIS positions
- Period: 2026-06-12T16:04:11+00:00 to 2026-06-12T18:05:51+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 121.7000000000000028421709430404007434844970703125,
"points_in_zone": 4,
"first_point": {
"ts": "2026-06-12T16:04:11+00:00",
"lat": 31.533958299999998331486494862474501132965087890625,
"lon": 31.73892000000000024328983272425830364227294921875
},
"last_point": {
"ts": "2026-06-12T18:05:51+00:00",
"lat": 31.4516966999999993959136190824210643768310546875,
"lon": 31.76924999999999954525264911353588104248046875
}
}- Zone: discovered_020
- Duration: 2 hours
- Data Points: 18 AIS positions
- Period: 2026-06-12T00:02:59+00:00 to 2026-06-12T02:03:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 120,
"points_in_zone": 18,
"first_point": {
"ts": "2026-06-12T00:02:59+00:00",
"lat": 31.534258300000001185026121675036847591400146484375,
"lon": 31.739405000000001422222339897416532039642333984375
},
"last_point": {
"ts": "2026-06-12T02:03:02+00:00",
"lat": 31.53410170000000078971424954943358898162841796875,
"lon": 31.73922999999999916553861112333834171295166015625
}
}- Duration: 2 hours
- Radius: 15 meters
- Data Points: 18 AIS positions
- Centroid: 31.5342, 31.7393
- Zone: discovered_020
Show Raw Evidence JSON
{
"radius_m": 15.4000000000000003552713678800500929355621337890625,
"duration_minutes": 120,
"points": 18,
"centroid": {
"lat": 31.5341954722222226337180472910404205322265625,
"lon": 31.739315000000001276703187613748013973236083984375
},
"bbox": {
"min_lat": 31.53410170000000078971424954943358898162841796875,
"min_lon": 31.73922999999999916553861112333834171295166015625,
"max_lat": 31.534306699999998357952790684066712856292724609375,
"max_lon": 31.739411700000001559374140924774110317230224609375
},
"zone_id": "discovered_020"
}- Zone: discovered_020
- Duration: 4h 54m
- Data Points: 19 AIS positions
- Period: 2026-06-11T21:08:59+00:00 to 2026-06-12T02:03:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 294.1000000000000227373675443232059478759765625,
"points_in_zone": 19,
"first_point": {
"ts": "2026-06-11T21:08:59+00:00",
"lat": 31.534318299999998913563103997148573398590087890625,
"lon": 31.739411700000001559374140924774110317230224609375
},
"last_point": {
"ts": "2026-06-12T02:03:02+00:00",
"lat": 31.53410170000000078971424954943358898162841796875,
"lon": 31.73922999999999916553861112333834171295166015625
}
}- Duration: 4h 54m
- Radius: 16 meters
- Data Points: 19 AIS positions
- Centroid: 31.5342, 31.7393
- Zone: discovered_020
Show Raw Evidence JSON
{
"radius_m": 15.5999999999999996447286321199499070644378662109375,
"duration_minutes": 294.1000000000000227373675443232059478759765625,
"points": 19,
"centroid": {
"lat": 31.534201936842098490387797937728464603424072265625,
"lon": 31.739320089473693542458931915462017059326171875
},
"bbox": {
"min_lat": 31.53410170000000078971424954943358898162841796875,
"min_lon": 31.73922999999999916553861112333834171295166015625,
"max_lat": 31.534318299999998913563103997148573398590087890625,
"max_lon": 31.739411700000001559374140924774110317230224609375
},
"zone_id": "discovered_020"
}- Zone: discovered_020
- Duration: 5h 3m
- Data Points: 20 AIS positions
- Period: 2026-06-11T20:59:58+00:00 to 2026-06-12T02:03:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 303.1000000000000227373675443232059478759765625,
"points_in_zone": 20,
"first_point": {
"ts": "2026-06-11T20:59:58+00:00",
"lat": 31.534220000000001249418346560560166835784912109375,
"lon": 31.73932669999999944820956443436443805694580078125
},
"last_point": {
"ts": "2026-06-12T02:03:02+00:00",
"lat": 31.53410170000000078971424954943358898162841796875,
"lon": 31.73922999999999916553861112333834171295166015625
}
}- Duration: 5h 3m
- Radius: 16 meters
- Data Points: 20 AIS positions
- Centroid: 31.5342, 31.7393
- Zone: discovered_020
Show Raw Evidence JSON
{
"radius_m": 15.5,
"duration_minutes": 303.1000000000000227373675443232059478759765625,
"points": 20,
"centroid": {
"lat": 31.534202839999995404696164769120514392852783203125,
"lon": 31.739320419999994982163116219453513622283935546875
},
"bbox": {
"min_lat": 31.53410170000000078971424954943358898162841796875,
"min_lon": 31.73922999999999916553861112333834171295166015625,
"max_lat": 31.534318299999998913563103997148573398590087890625,
"max_lon": 31.739411700000001559374140924774110317230224609375
},
"zone_id": "discovered_020"
}- Zone: discovered_020
- Duration: 6h 27m
- Data Points: 25 AIS positions
- Period: 2026-06-11T19:35:59+00:00 to 2026-06-12T02:03:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 387.1000000000000227373675443232059478759765625,
"points_in_zone": 25,
"first_point": {
"ts": "2026-06-11T19:35:59+00:00",
"lat": 31.5341667000000001053194864653050899505615234375,
"lon": 31.73926829999999910114638623781502246856689453125
},
"last_point": {
"ts": "2026-06-12T02:03:02+00:00",
"lat": 31.53410170000000078971424954943358898162841796875,
"lon": 31.73922999999999916553861112333834171295166015625
}
}- Duration: 6h 27m
- Radius: 16 meters
- Data Points: 25 AIS positions
- Centroid: 31.5342, 31.7393
- Zone: discovered_020
Show Raw Evidence JSON
{
"radius_m": 16.300000000000000710542735760100185871124267578125,
"duration_minutes": 387.1000000000000227373675443232059478759765625,
"points": 25,
"centroid": {
"lat": 31.5341986039999966351388138718903064727783203125,
"lon": 31.739311468000000360234480467624962329864501953125
},
"bbox": {
"min_lat": 31.53410170000000078971424954943358898162841796875,
"min_lon": 31.73922999999999916553861112333834171295166015625,
"max_lat": 31.534318299999998913563103997148573398590087890625,
"max_lon": 31.739411700000001559374140924774110317230224609375
},
"zone_id": "discovered_020"
}- Zone: discovered_020
- Duration: 6h 33m
- Data Points: 23 AIS positions
- Period: 2026-06-11T18:56:57+00:00 to 2026-06-12T01:30:04+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 393.1000000000000227373675443232059478759765625,
"points_in_zone": 23,
"first_point": {
"ts": "2026-06-11T18:56:57+00:00",
"lat": 31.534103300000001723901732475496828556060791015625,
"lon": 31.739208300000001372609403915703296661376953125
},
"last_point": {
"ts": "2026-06-12T01:30:04+00:00",
"lat": 31.5341599999999999681676854379475116729736328125,
"lon": 31.73927499999999923829818726517260074615478515625
}
}- Duration: 6h 33m
- Radius: 18 meters
- Data Points: 23 AIS positions
- Centroid: 31.5342, 31.7393
- Zone: discovered_020
Show Raw Evidence JSON
{
"radius_m": 18.199999999999999289457264239899814128875732421875,
"duration_minutes": 393.1000000000000227373675443232059478759765625,
"points": 23,
"centroid": {
"lat": 31.53418579999999593610482406802475452423095703125,
"lon": 31.73929927826086583309006527997553348541259765625
},
"bbox": {
"min_lat": 31.534054999999998614157448173500597476959228515625,
"min_lon": 31.739200000000000301270119962282478809356689453125,
"max_lat": 31.534318299999998913563103997148573398590087890625,
"max_lon": 31.739411700000001559374140924774110317230224609375
},
"zone_id": "discovered_020"
}- Zone: discovered_020
- Duration: 2h 33m
- Data Points: 2 AIS positions
- Period: 2026-06-09T21:17:39+00:00 to 2026-06-09T23:50:41+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 153,
"points_in_zone": 2,
"first_point": {
"ts": "2026-06-09T21:17:39+00:00",
"lat": 31.37797499999999928377292235381901264190673828125,
"lon": 32.27443170000000094432834885083138942718505859375
},
"last_point": {
"ts": "2026-06-09T23:50:41+00:00",
"lat": 31.378086700000000774934960645623505115509033203125,
"lon": 32.27490329999999829624357516877353191375732421875
}
}- Zone: discovered_020
- Duration: 4h 47m
- Data Points: 3 AIS positions
- Period: 2026-06-09T19:02:46+00:00 to 2026-06-09T23:50:41+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 287.8999999999999772626324556767940521240234375,
"points_in_zone": 3,
"first_point": {
"ts": "2026-06-09T19:02:46+00:00",
"lat": 31.457571699999999026431396487168967723846435546875,
"lon": 32.41621330000000256177372648380696773529052734375
},
"last_point": {
"ts": "2026-06-09T23:50:41+00:00",
"lat": 31.378086700000000774934960645623505115509033203125,
"lon": 32.27490329999999829624357516877353191375732421875
}
}- Zone: discovered_020
- Duration: 5h 21m
- Data Points: 11 AIS positions
- Period: 2026-06-09T18:29:37+00:00 to 2026-06-09T23:50:41+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 321.1000000000000227373675443232059478759765625,
"points_in_zone": 11,
"first_point": {
"ts": "2026-06-09T18:29:37+00:00",
"lat": 31.44355829999999940582711133174598217010498046875,
"lon": 32.48122330000000346217348123900592327117919921875
},
"last_point": {
"ts": "2026-06-09T23:50:41+00:00",
"lat": 31.378086700000000774934960645623505115509033203125,
"lon": 32.27490329999999829624357516877353191375732421875
}
}- Zone: discovered_020
- Duration: 5h 54m
- Data Points: 14 AIS positions
- Period: 2026-06-09T13:08:44+00:00 to 2026-06-09T19:02:46+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 354,
"points_in_zone": 14,
"first_point": {
"ts": "2026-06-09T13:08:44+00:00",
"lat": 31.44231669999999922993083600886166095733642578125,
"lon": 32.48180169999999833407855476252734661102294921875
},
"last_point": {
"ts": "2026-06-09T19:02:46+00:00",
"lat": 31.457571699999999026431396487168967723846435546875,
"lon": 32.41621330000000256177372648380696773529052734375
}
}- Minimum Distance: 75 meters
- Average Distance: 80 meters
- Duration: 54 minutes
- Period: 2026-06-09T13:01:24+00:00 to 2026-06-09T13:55:49+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: discovered_020
Confidence Analysis
High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 75m, avg 80m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 75m, avg 80m |
| Duration | 10/25 | Duration 54 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: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 636023785,
"imo": 9337016,
"name": "CRONUS",
"flag": "LIBERIA"
},
"vessel_b": {
"mmsi": 636014361,
"imo": 9460825,
"name": "DILOS",
"flag": "LIBERIA"
},
"min_distance_m": 75.2000000000000028421709430404007434844970703125,
"avg_distance_m": 80,
"distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
"duration_minutes": 54.39999999999999857891452847979962825775146484375,
"overlap_duration_s": 3265,
"speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-06-09T13:01:24+00:00",
"end": "2026-06-09T13:55:49+00:00"
},
"points_count": {
"vessel_a": 6,
"vessel_b": 6
},
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 75m, avg 80m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 54 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b13m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (CRONUS and DILOS) maintained close proximity (min 75m, avg 80m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Zone: discovered_020
- Duration: 6h 27m
- Data Points: 15 AIS positions
- Period: 2026-06-09T12:35:40+00:00 to 2026-06-09T19:02:46+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_020",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 387.1000000000000227373675443232059478759765625,
"points_in_zone": 15,
"first_point": {
"ts": "2026-06-09T12:35:40+00:00",
"lat": 31.442433300000001139551386586390435695648193359375,
"lon": 32.482044999999999390638549812138080596923828125
},
"last_point": {
"ts": "2026-06-09T19:02:46+00:00",
"lat": 31.457571699999999026431396487168967723846435546875,
"lon": 32.41621330000000256177372648380696773529052734375
}
}Recent Position Data
| Time (UTC) | Lat | Lon | Speed | Course | Zone |
|---|---|---|---|---|---|
| Jul 22 07:57 | 31.4393 | 32.4780 | 0.0 kn | 0.0° | Western Black Sea Surveillance Zone |
| Jul 22 07:45 | 31.4393 | 32.4780 | 0.1 kn | 352.2° | Western Black Sea Surveillance Zone |
| Jul 20 00:00 | 31.3845 | 32.2737 | 6.6 kn | 275.9° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:46 | 31.3777 | 32.3121 | 0.0 kn | 37.8° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:43 | 31.3776 | 32.3121 | 0.0 kn | 18.5° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:41 | 31.3776 | 32.3121 | 0.0 kn | 180.7° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:38 | 31.3776 | 32.3121 | 0.0 kn | 180.7° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:33 | 31.3777 | 32.3121 | 0.1 kn | 247.3° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:30 | 31.3777 | 32.3122 | 0.1 kn | 286.1° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:27 | 31.3775 | 32.3126 | 1.4 kn | 317.4° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:24 | 31.3769 | 32.3134 | 0.8 kn | 308.4° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 19:04 | 31.3871 | 32.2837 | 6.5 kn | 111.8° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 18:58 | 31.3909 | 32.2720 | 6.0 kn | 107.2° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 18:56 | 31.3923 | 32.2686 | 6.1 kn | 137.7° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 18:41 | 31.4062 | 32.2606 | 0.7 kn | 344.4° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 18:37 | 31.4055 | 32.2608 | 0.5 kn | 338.2° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 18:22 | 31.4054 | 32.2609 | 0.0 kn | 90.3° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 17:58 | 31.4054 | 32.2609 | 0.1 kn | 277.0° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 17:52 | 31.4054 | 32.2609 | 0.0 kn | 125.8° | Black Sea Sanctioned Vessel Monitoring Zone |
| Jul 19 17:40 | 31.4054 | 32.2609 | 0.0 kn | 298.5° | Black Sea Sanctioned Vessel Monitoring Zone |
Showing 20 of 100 recent positions.
Data Source
Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.
Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.
