PIERO A

IMO 9010955

Vessel information

Vessel Name PIERO A
IMO Number 9010955
MMSI 620800105
Vessel Type Tanker
Flag 🇰🇲 COMOROS
Call Sign D6A4105
Length 90 m
Beam 14 m

Detected Events (100)

Zone Dwell discovered_023
Aug 27, 2026 20:10 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 14m
  • Data Points: 11 AIS positions
  • Period: 2026-08-27T20:10:54+00:00 to 2026-08-27T22:25:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 134.19999999999998863131622783839702606201171875,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-27T20:10:54+00:00",
        "lat": 31.809871699999998639896148233674466609954833984375,
        "lon": 31.816693300000000732552507543005049228668212890625
    },
    "last_point": {
        "ts": "2026-08-27T22:25:05+00:00",
        "lat": 31.832480000000000330828697769902646541595458984375,
        "lon": 31.457685000000001451780917705036699771881103515625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 19:27 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 57m
  • Data Points: 12 AIS positions
  • Period: 2026-08-27T19:27:45+00:00 to 2026-08-27T22:25:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 177.30000000000001136868377216160297393798828125,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-08-27T19:27:45+00:00",
        "lat": 31.80221829999999982874214765615761280059814453125,
        "lon": 31.926010000000001554099071654491126537322998046875
    },
    "last_point": {
        "ts": "2026-08-27T22:25:05+00:00",
        "lat": 31.832480000000000330828697769902646541595458984375,
        "lon": 31.457685000000001451780917705036699771881103515625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 18:02 UTC 80.0%
  • Zone: discovered_023
  • Duration: 4h 22m
  • Data Points: 15 AIS positions
  • Period: 2026-08-27T18:02:55+00:00 to 2026-08-27T22:25:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 262.19999999999998863131622783839702606201171875,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-08-27T18:02:55+00:00",
        "lat": 31.731071700000001101216184906661510467529296875,
        "lon": 32.138384999999999536157702095806598663330078125
    },
    "last_point": {
        "ts": "2026-08-27T22:25:05+00:00",
        "lat": 31.832480000000000330828697769902646541595458984375,
        "lon": 31.457685000000001451780917705036699771881103515625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 17:01 UTC 80.0%
  • Zone: discovered_023
  • Duration: 5h 23m
  • Data Points: 25 AIS positions
  • Period: 2026-08-27T17:01:45+00:00 to 2026-08-27T22:25:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 323.30000000000001136868377216160297393798828125,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-08-27T17:01:45+00:00",
        "lat": 31.66320329999999927395037957467138767242431640625,
        "lon": 32.2609633000000002311935531906783580780029296875
    },
    "last_point": {
        "ts": "2026-08-27T22:25:05+00:00",
        "lat": 31.832480000000000330828697769902646541595458984375,
        "lon": 31.457685000000001451780917705036699771881103515625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 16:08 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 16m
  • Data Points: 32 AIS positions
  • Period: 2026-08-27T16:08:36+00:00 to 2026-08-27T22:25:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 376.5,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-08-27T16:08:36+00:00",
        "lat": 31.660418299999999902638592175208032131195068359375,
        "lon": 32.260791699999998627390596084296703338623046875
    },
    "last_point": {
        "ts": "2026-08-27T22:25:05+00:00",
        "lat": 31.832480000000000330828697769902646541595458984375,
        "lon": 31.457685000000001451780917705036699771881103515625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 15:15 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 31m
  • Data Points: 33 AIS positions
  • Period: 2026-08-27T15:53:25+00:00 to 2026-08-27T22:25:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 391.69999999999998863131622783839702606201171875,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-08-27T15:53:25+00:00",
        "lat": 31.66043499999999966121322358958423137664794921875,
        "lon": 32.26089999999999946567186270840466022491455078125
    },
    "last_point": {
        "ts": "2026-08-27T22:25:05+00:00",
        "lat": 31.832480000000000330828697769902646541595458984375,
        "lon": 31.457685000000001451780917705036699771881103515625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 27, 2026 15:15 UTC 75.0%
  • Duration: 1h 52m
  • Radius: 869 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.6615, 32.2606
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 869,
    "duration_minutes": 112.5,
    "points": 16,
    "centroid": {
        "lat": 31.661546343750000431782609666697680950164794921875,
        "lon": 32.26059521250000017289494280703365802764892578125
    },
    "bbox": {
        "min_lat": 31.659868299999999408100848086178302764892578125,
        "min_lon": 32.256941699999998718340066261589527130126953125,
        "max_lat": 31.6687332999999995308826328255236148834228515625,
        "max_lon": 32.2609633000000002311935531906783580780029296875
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 14:10 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 36m
  • Data Points: 42 AIS positions
  • Period: 2026-08-27T14:10:40+00:00 to 2026-08-27T20:47:35+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-08-27T14:10:40+00:00",
        "lat": 31.66053000000000139380063046701252460479736328125,
        "lon": 32.2607832999999999401552486233413219451904296875
    },
    "last_point": {
        "ts": "2026-08-27T20:47:35+00:00",
        "lat": 31.812214999999998354951458168216049671173095703125,
        "lon": 31.7180867000000006328264134936034679412841796875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 27, 2026 14:10 UTC 75.0%
  • Duration: 2h 57m
  • Radius: 896 meters
  • Data Points: 21 AIS positions
  • Centroid: 31.6613, 32.2606
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 895.5,
    "duration_minutes": 177.099999999999994315658113919198513031005859375,
    "points": 21,
    "centroid": {
        "lat": 31.66130340476190241361109656281769275665283203125,
        "lon": 32.26064373333333179516557720489799976348876953125
    },
    "bbox": {
        "min_lat": 31.659868299999999408100848086178302764892578125,
        "min_lon": 32.256941699999998718340066261589527130126953125,
        "max_lat": 31.6687332999999995308826328255236148834228515625,
        "max_lon": 32.2609633000000002311935531906783580780029296875
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 10:01 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 35m
  • Data Points: 23 AIS positions
  • Period: 2026-08-27T10:32:18+00:00 to 2026-08-27T17:07:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 395.3999999999999772626324556767940521240234375,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-08-27T10:32:18+00:00",
        "lat": 31.66105999999999909277903498150408267974853515625,
        "lon": 32.26110330000000203654053620994091033935546875
    },
    "last_point": {
        "ts": "2026-08-27T17:07:44+00:00",
        "lat": 31.6687332999999995308826328255236148834228515625,
        "lon": 32.256941699999998718340066261589527130126953125
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 27, 2026 10:01 UTC 75.0%
  • Duration: 6h 35m
  • Radius: 900 meters
  • Data Points: 23 AIS positions
  • Centroid: 31.6613, 32.2607
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 899.5,
    "duration_minutes": 395.3999999999999772626324556767940521240234375,
    "points": 23,
    "centroid": {
        "lat": 31.661279269565216765158766065724194049835205078125,
        "lon": 32.2606847826086919894805760122835636138916015625
    },
    "bbox": {
        "min_lat": 31.659868299999999408100848086178302764892578125,
        "min_lon": 32.256941699999998718340066261589527130126953125,
        "max_lat": 31.6687332999999995308826328255236148834228515625,
        "max_lon": 32.26112830000000286645445157773792743682861328125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 09:49 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 27m
  • Data Points: 20 AIS positions
  • Period: 2026-08-27T09:49:59+00:00 to 2026-08-27T16:17:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-08-27T09:49:59+00:00",
        "lat": 31.66111829999999827123247087001800537109375,
        "lon": 32.26112499999999982946974341757595539093017578125
    },
    "last_point": {
        "ts": "2026-08-27T16:17:04+00:00",
        "lat": 31.6604999999999989768184605054557323455810546875,
        "lon": 32.26089499999999787860360811464488506317138671875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 27, 2026 09:49 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 54 meters
  • Data Points: 20 AIS positions
  • Centroid: 31.6607, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 53.5,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 31.660671499999995859297996503300964832305908203125,
        "lon": 32.26091233500000754474967834539711475372314453125
    },
    "bbox": {
        "min_lat": 31.660418299999999902638592175208032131195068359375,
        "min_lon": 32.26071999999999917463355814106762409210205078125,
        "max_lat": 31.66111829999999827123247087001800537109375,
        "max_lon": 32.26112830000000286645445157773792743682861328125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 07:36 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 58m
  • Data Points: 7 AIS positions
  • Period: 2026-08-27T07:36:40+00:00 to 2026-08-27T10:35:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 178.30000000000001136868377216160297393798828125,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-08-27T07:36:40+00:00",
        "lat": 31.661113300000000236877895076759159564971923828125,
        "lon": 32.2610882999999972753357724286615848541259765625
    },
    "last_point": {
        "ts": "2026-08-27T10:35:00+00:00",
        "lat": 31.660991700000000292902768705971539020538330078125,
        "lon": 32.26112830000000286645445157773792743682861328125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 06:21 UTC 80.0%
  • Zone: discovered_023
  • Duration: 4h 13m
  • Data Points: 13 AIS positions
  • Period: 2026-08-27T06:21:59+00:00 to 2026-08-27T10:35:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 253,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-27T06:21:59+00:00",
        "lat": 31.661036700000000365662344847805798053741455078125,
        "lon": 32.2611466999999976223989506252110004425048828125
    },
    "last_point": {
        "ts": "2026-08-27T10:35:00+00:00",
        "lat": 31.660991700000000292902768705971539020538330078125,
        "lon": 32.26112830000000286645445157773792743682861328125
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 27, 2026 06:21 UTC 75.0%
  • Duration: 4h 13m
  • Radius: 15 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.6610, 32.2611
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 14.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 253,
    "points": 13,
    "centroid": {
        "lat": 31.66103615384616176697818445973098278045654296875,
        "lon": 32.2610878153846130089732469059526920318603515625
    },
    "bbox": {
        "min_lat": 31.660913300000000702993929735384881496429443359375,
        "min_lon": 32.2609982999999971298166201449930667877197265625,
        "max_lat": 31.66111829999999827123247087001800537109375,
        "max_lon": 32.2611466999999976223989506252110004425048828125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 02:15 UTC 80.0%
  • Zone: discovered_023
  • Duration: 5h 20m
  • Data Points: 8 AIS positions
  • Period: 2026-08-27T02:15:59+00:00 to 2026-08-27T07:36:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 320.69999999999998863131622783839702606201171875,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-08-27T02:15:59+00:00",
        "lat": 31.661121699999998924113242537714540958404541015625,
        "lon": 32.2611466999999976223989506252110004425048828125
    },
    "last_point": {
        "ts": "2026-08-27T07:36:40+00:00",
        "lat": 31.661113300000000236877895076759159564971923828125,
        "lon": 32.2610882999999972753357724286615848541259765625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 27, 2026 01:26 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 10m
  • Data Points: 13 AIS positions
  • Period: 2026-08-27T01:26:21+00:00 to 2026-08-27T07:36:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 370.30000000000001136868377216160297393798828125,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-27T01:26:21+00:00",
        "lat": 31.661075000000000301270119962282478809356689453125,
        "lon": 32.2609599999999971942088450305163860321044921875
    },
    "last_point": {
        "ts": "2026-08-27T07:36:40+00:00",
        "lat": 31.661113300000000236877895076759159564971923828125,
        "lon": 32.2610882999999972753357724286615848541259765625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 27, 2026 01:26 UTC 75.0%
  • Duration: 6h 10m
  • Radius: 14 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.6610, 32.2611
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 13.5,
    "duration_minutes": 370.30000000000001136868377216160297393798828125,
    "points": 13,
    "centroid": {
        "lat": 31.661027946153847523191871005110442638397216796875,
        "lon": 32.2610715384615360790121485479176044464111328125
    },
    "bbox": {
        "min_lat": 31.660913300000000702993929735384881496429443359375,
        "min_lon": 32.2609599999999971942088450305163860321044921875,
        "max_lat": 31.661121699999998924113242537714540958404541015625,
        "max_lon": 32.2611466999999976223989506252110004425048828125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 23:02 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 12m
  • Data Points: 6 AIS positions
  • Period: 2026-08-26T23:02:55+00:00 to 2026-08-27T01:15:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 132.099999999999994315658113919198513031005859375,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-08-26T23:02:55+00:00",
        "lat": 31.66091000000000121872290037572383880615234375,
        "lon": 32.26100000000000278532752417959272861480712890625
    },
    "last_point": {
        "ts": "2026-08-27T01:15:00+00:00",
        "lat": 31.66102670000000074423951446078717708587646484375,
        "lon": 32.26093999999999795136318425647914409637451171875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 22:22 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 52m
  • Data Points: 7 AIS positions
  • Period: 2026-08-26T22:22:15+00:00 to 2026-08-27T01:15:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 172.80000000000001136868377216160297393798828125,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-08-26T22:22:15+00:00",
        "lat": 31.660928299999998358771335915662348270416259765625,
        "lon": 32.260971699999998918428900651633739471435546875
    },
    "last_point": {
        "ts": "2026-08-27T01:15:00+00:00",
        "lat": 31.66102670000000074423951446078717708587646484375,
        "lon": 32.26093999999999795136318425647914409637451171875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 21:06 UTC 80.0%
  • Zone: discovered_023
  • Duration: 4h 8m
  • Data Points: 12 AIS positions
  • Period: 2026-08-26T21:06:33+00:00 to 2026-08-27T01:15:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 248.400000000000005684341886080801486968994140625,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-08-26T21:06:33+00:00",
        "lat": 31.660875000000000767386154620908200740814208984375,
        "lon": 32.26097829999999788697095937095582485198974609375
    },
    "last_point": {
        "ts": "2026-08-27T01:15:00+00:00",
        "lat": 31.66102670000000074423951446078717708587646484375,
        "lon": 32.26093999999999795136318425647914409637451171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 21:06 UTC 75.0%
  • Duration: 4h 8m
  • Radius: 24 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.6609, 32.2610
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 24,
    "duration_minutes": 248.400000000000005684341886080801486968994140625,
    "points": 12,
    "centroid": {
        "lat": 31.660924166666664092417704523541033267974853515625,
        "lon": 32.26095847499999536012182943522930145263671875
    },
    "bbox": {
        "min_lat": 31.660810000000001451780917705036699771881103515625,
        "min_lon": 32.26076499999999924739313428290188312530517578125,
        "max_lat": 31.661063299999998577050064341165125370025634765625,
        "max_lon": 32.2610432999999972025761962868273258209228515625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 20:08 UTC 80.0%
  • Zone: discovered_023
  • Duration: 5h 6m
  • Data Points: 18 AIS positions
  • Period: 2026-08-26T20:08:46+00:00 to 2026-08-27T01:15:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 306.19999999999998863131622783839702606201171875,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-08-26T20:08:46+00:00",
        "lat": 31.660881700000000904537955648265779018402099609375,
        "lon": 32.26092330000000174550223164260387420654296875
    },
    "last_point": {
        "ts": "2026-08-27T01:15:00+00:00",
        "lat": 31.66102670000000074423951446078717708587646484375,
        "lon": 32.26093999999999795136318425647914409637451171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 20:08 UTC 75.0%
  • Duration: 5h 6m
  • Radius: 26 meters
  • Data Points: 18 AIS positions
  • Centroid: 31.6609, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 26,
    "duration_minutes": 306.19999999999998863131622783839702606201171875,
    "points": 18,
    "centroid": {
        "lat": 31.660890188888895835361836361698806285858154296875,
        "lon": 32.2609496277777765271821408532559871673583984375
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26076499999999924739313428290188312530517578125,
        "max_lat": 31.661063299999998577050064341165125370025634765625,
        "max_lon": 32.2610432999999972025761962868273258209228515625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 19:03 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 11m
  • Data Points: 22 AIS positions
  • Period: 2026-08-26T19:03:15+00:00 to 2026-08-27T01:15:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 371.80000000000001136868377216160297393798828125,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-08-26T19:03:15+00:00",
        "lat": 31.6608149999999994861354934982955455780029296875,
        "lon": 32.26090669999999960282366373576223850250244140625
    },
    "last_point": {
        "ts": "2026-08-27T01:15:00+00:00",
        "lat": 31.66102670000000074423951446078717708587646484375,
        "lon": 32.26093999999999795136318425647914409637451171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 19:03 UTC 75.0%
  • Duration: 6h 11m
  • Radius: 27 meters
  • Data Points: 22 AIS positions
  • Centroid: 31.6609, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 27,
    "duration_minutes": 371.80000000000001136868377216160297393798828125,
    "points": 22,
    "centroid": {
        "lat": 31.660873790909089819933797116391360759735107421875,
        "lon": 32.26094439545453695927790249697864055633544921875
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26076499999999924739313428290188312530517578125,
        "max_lat": 31.661063299999998577050064341165125370025634765625,
        "max_lon": 32.2610432999999972025761962868273258209228515625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 18:01 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 26m
  • Data Points: 25 AIS positions
  • Period: 2026-08-26T18:48:43+00:00 to 2026-08-27T01:15:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 386.30000000000001136868377216160297393798828125,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-08-26T18:48:43+00:00",
        "lat": 31.66079500000000024328983272425830364227294921875,
        "lon": 32.26093329999999781421138322912156581878662109375
    },
    "last_point": {
        "ts": "2026-08-27T01:15:00+00:00",
        "lat": 31.66102670000000074423951446078717708587646484375,
        "lon": 32.26093999999999795136318425647914409637451171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 18:01 UTC 75.0%
  • Duration: 6h 26m
  • Radius: 28 meters
  • Data Points: 25 AIS positions
  • Centroid: 31.6609, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 27.699999999999999289457264239899814128875732421875,
    "duration_minutes": 386.30000000000001136868377216160297393798828125,
    "points": 25,
    "centroid": {
        "lat": 31.660866599999994974723449558950960636138916015625,
        "lon": 32.26094453199999634307459928095340728759765625
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26076499999999924739313428290188312530517578125,
        "max_lat": 31.661063299999998577050064341165125370025634765625,
        "max_lon": 32.2610432999999972025761962868273258209228515625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 17:03 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 27m
  • Data Points: 37 AIS positions
  • Period: 2026-08-26T17:03:45+00:00 to 2026-08-26T23:30:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-08-26T17:03:45+00:00",
        "lat": 31.660779999999999034798747743479907512664794921875,
        "lon": 32.26096499999999878127709962427616119384765625
    },
    "last_point": {
        "ts": "2026-08-26T23:30:54+00:00",
        "lat": 31.6609049999999996316546457819640636444091796875,
        "lon": 32.26095000000000112549969344399869441986083984375
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 17:03 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 17 meters
  • Data Points: 37 AIS positions
  • Centroid: 31.6608, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 16.5,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 37,
    "centroid": {
        "lat": 31.66082414054054794405601569451391696929931640625,
        "lon": 32.26094612432432739979049074463546276092529296875
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26080499999999773308445583097636699676513671875,
        "max_lat": 31.660928299999998358771335915662348270416259765625,
        "max_lon": 32.26103499999999968395059113390743732452392578125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 16:00 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 27m
  • Data Points: 39 AIS positions
  • Period: 2026-08-26T16:44:03+00:00 to 2026-08-26T23:11:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 387.19999999999998863131622783839702606201171875,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-08-26T16:44:03+00:00",
        "lat": 31.660804999999999864712663111276924610137939453125,
        "lon": 32.2609317000000004327375791035592555999755859375
    },
    "last_point": {
        "ts": "2026-08-26T23:11:14+00:00",
        "lat": 31.660868300000000630234353593550622463226318359375,
        "lon": 32.2609183000000001584339770488440990447998046875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 16:00 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 16 meters
  • Data Points: 39 AIS positions
  • Centroid: 31.6608, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 16.199999999999999289457264239899814128875732421875,
    "duration_minutes": 387.19999999999998863131622783839702606201171875,
    "points": 39,
    "centroid": {
        "lat": 31.660820851282057475373221677727997303009033203125,
        "lon": 32.26094452820512969992705620825290679931640625
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26080499999999773308445583097636699676513671875,
        "max_lat": 31.660928299999998358771335915662348270416259765625,
        "max_lon": 32.26103499999999968395059113390743732452392578125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 15:03 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 30m
  • Data Points: 44 AIS positions
  • Period: 2026-08-26T15:24:05+00:00 to 2026-08-26T21:54:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390.3999999999999772626324556767940521240234375,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-08-26T15:24:05+00:00",
        "lat": 31.660816700000001588932718732394278049468994140625,
        "lon": 32.2609317000000004327375791035592555999755859375
    },
    "last_point": {
        "ts": "2026-08-26T21:54:26+00:00",
        "lat": 31.660901700000000147383616422303020954132080078125,
        "lon": 32.26103169999999664696588297374546527862548828125
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 15:03 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 16 meters
  • Data Points: 44 AIS positions
  • Centroid: 31.6608, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 15.800000000000000710542735760100185871124267578125,
    "duration_minutes": 390.3999999999999772626324556767940521240234375,
    "points": 44,
    "centroid": {
        "lat": 31.66081609999999812998794368468225002288818359375,
        "lon": 32.26094337045454807366695604287087917327880859375
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26080499999999773308445583097636699676513671875,
        "max_lat": 31.660920000000000840145730762742459774017333984375,
        "max_lon": 32.26103499999999968395059113390743732452392578125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 14:04 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 24m
  • Data Points: 48 AIS positions
  • Period: 2026-08-26T14:48:44+00:00 to 2026-08-26T21:12:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-08-26T14:48:44+00:00",
        "lat": 31.6608082999999993489836924709379673004150390625,
        "lon": 32.26096499999999878127709962427616119384765625
    },
    "last_point": {
        "ts": "2026-08-26T21:12:53+00:00",
        "lat": 31.660851699999998487555785686708986759185791015625,
        "lon": 32.26091670000000277696017292328178882598876953125
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 14:04 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 16 meters
  • Data Points: 48 AIS positions
  • Centroid: 31.6608, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 15.699999999999999289457264239899814128875732421875,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "points": 48,
    "centroid": {
        "lat": 31.660814027083329591505389544181525707244873046875,
        "lon": 32.2609433333333299742662347853183746337890625
    },
    "bbox": {
        "min_lat": 31.660736700000001064836396835744380950927734375,
        "min_lon": 32.26080499999999773308445583097636699676513671875,
        "max_lat": 31.660920000000000840145730762742459774017333984375,
        "max_lon": 32.26103499999999968395059113390743732452392578125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 13:00 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 34m
  • Data Points: 52 AIS positions
  • Period: 2026-08-26T13:00:54+00:00 to 2026-08-26T19:35:35+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 394.69999999999998863131622783839702606201171875,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-08-26T13:00:54+00:00",
        "lat": 31.660920000000000840145730762742459774017333984375,
        "lon": 32.261071700000002238084562122821807861328125
    },
    "last_point": {
        "ts": "2026-08-26T19:35:35+00:00",
        "lat": 31.66078329999999851906977710314095020294189453125,
        "lon": 32.26089830000000091558831627480685710906982421875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 13:00 UTC 75.0%
  • Duration: 6h 34m
  • Radius: 26 meters
  • Data Points: 52 AIS positions
  • Centroid: 31.6608, 32.2610
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 25.5,
    "duration_minutes": 394.69999999999998863131622783839702606201171875,
    "points": 52,
    "centroid": {
        "lat": 31.6608304807692348958880756981670856475830078125,
        "lon": 32.2609675326923053262362373061478137969970703125
    },
    "bbox": {
        "min_lat": 31.66074830000000162044671014882624149322509765625,
        "min_lon": 32.2608699999999970486896927468478679656982421875,
        "max_lat": 31.66100000000000136424205265939235687255859375,
        "max_lon": 32.2611500000000006593836587853729724884033203125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 12:09 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 22m
  • Data Points: 46 AIS positions
  • Period: 2026-08-26T12:09:36+00:00 to 2026-08-26T18:32:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 382.80000000000001136868377216160297393798828125,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-08-26T12:09:36+00:00",
        "lat": 31.66099669999999832725734449923038482666015625,
        "lon": 32.26110330000000203654053620994091033935546875
    },
    "last_point": {
        "ts": "2026-08-26T18:32:24+00:00",
        "lat": 31.660806699999998414796209544874727725982666015625,
        "lon": 32.26093329999999781421138322912156581878662109375
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 12:09 UTC 75.0%
  • Duration: 6h 22m
  • Radius: 24 meters
  • Data Points: 46 AIS positions
  • Centroid: 31.6608, 32.2610
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 24.39999999999999857891452847979962825775146484375,
    "duration_minutes": 382.80000000000001136868377216160297393798828125,
    "points": 46,
    "centroid": {
        "lat": 31.66083782826087400508185965009033679962158203125,
        "lon": 32.26097597826086627037511789239943027496337890625
    },
    "bbox": {
        "min_lat": 31.66074830000000162044671014882624149322509765625,
        "min_lon": 32.2608699999999970486896927468478679656982421875,
        "max_lat": 31.66100000000000136424205265939235687255859375,
        "max_lon": 32.2611500000000006593836587853729724884033203125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 10:10 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 30m
  • Data Points: 36 AIS positions
  • Period: 2026-08-26T10:48:23+00:00 to 2026-08-26T17:18:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390.3999999999999772626324556767940521240234375,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-08-26T10:48:23+00:00",
        "lat": 31.66107170000000081699909060262143611907958984375,
        "lon": 32.261093299999998862404027022421360015869140625
    },
    "last_point": {
        "ts": "2026-08-26T17:18:45+00:00",
        "lat": 31.66074830000000162044671014882624149322509765625,
        "lon": 32.26093670000000201980583369731903076171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 10:10 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 26 meters
  • Data Points: 36 AIS positions
  • Centroid: 31.6609, 32.2610
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 25.89999999999999857891452847979962825775146484375,
    "duration_minutes": 390.3999999999999772626324556767940521240234375,
    "points": 36,
    "centroid": {
        "lat": 31.660855469444445731141968281008303165435791015625,
        "lon": 32.2609893055555545515744597651064395904541015625
    },
    "bbox": {
        "min_lat": 31.66074830000000162044671014882624149322509765625,
        "min_lon": 32.260891700000001947046257555484771728515625,
        "max_lat": 31.66107170000000081699909060262143611907958984375,
        "max_lon": 32.2611500000000006593836587853729724884033203125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 09:18 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 29m
  • Data Points: 36 AIS positions
  • Period: 2026-08-26T09:57:34+00:00 to 2026-08-26T16:26:35+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 389,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-08-26T09:57:34+00:00",
        "lat": 31.661153299999998722569216624833643436431884765625,
        "lon": 32.26115329999999659094100934453308582305908203125
    },
    "last_point": {
        "ts": "2026-08-26T16:26:35+00:00",
        "lat": 31.6608149999999994861354934982955455780029296875,
        "lon": 32.260975000000001955413608811795711517333984375
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 09:18 UTC 75.0%
  • Duration: 6h 29m
  • Radius: 36 meters
  • Data Points: 36 AIS positions
  • Centroid: 31.6609, 32.2610
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 36.2000000000000028421709430404007434844970703125,
    "duration_minutes": 389,
    "points": 36,
    "centroid": {
        "lat": 31.66093731666666144519695080816745758056640625,
        "lon": 32.26104384166665539623863878659904003143310546875
    },
    "bbox": {
        "min_lat": 31.66078830000000010613803169690072536468505859375,
        "min_lon": 32.2609149999999971214492688886821269989013671875,
        "max_lat": 31.66123329999999924666553852148354053497314453125,
        "max_lon": 32.26120499999999680085238651372492313385009765625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 26, 2026 08:17 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 25m
  • Data Points: 34 AIS positions
  • Period: 2026-08-26T08:45:46+00:00 to 2026-08-26T15:11:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 385.30000000000001136868377216160297393798828125,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-08-26T08:45:46+00:00",
        "lat": 31.661120000000000374029696104116737842559814453125,
        "lon": 32.26119330000000218205968849360942840576171875
    },
    "last_point": {
        "ts": "2026-08-26T15:11:03+00:00",
        "lat": 31.660804999999999864712663111276924610137939453125,
        "lon": 32.26095169999999967558323987759649753570556640625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 26, 2026 08:17 UTC 75.0%
  • Duration: 6h 25m
  • Radius: 31 meters
  • Data Points: 34 AIS positions
  • Centroid: 31.6610, 32.2611
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 30.5,
    "duration_minutes": 385.30000000000001136868377216160297393798828125,
    "points": 34,
    "centroid": {
        "lat": 31.66098259705882611569904838688671588897705078125,
        "lon": 32.26107235000000628133420832455158233642578125
    },
    "bbox": {
        "min_lat": 31.66078830000000010613803169690072536468505859375,
        "min_lon": 32.2609149999999971214492688886821269989013671875,
        "max_lat": 31.66123329999999924666553852148354053497314453125,
        "max_lon": 32.26120499999999680085238651372492313385009765625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 22:23 UTC 80.0%
  • Zone: discovered_023
  • Duration: 1h 31m
  • Data Points: 7 AIS positions
  • Period: 2026-08-25T22:23:12+00:00 to 2026-08-25T23:54:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 91.5,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-08-25T22:23:12+00:00",
        "lat": 31.661006700000001501393853686749935150146484375,
        "lon": 32.26102499999999650981408194638788700103759765625
    },
    "last_point": {
        "ts": "2026-08-25T23:54:44+00:00",
        "lat": 31.661003300000000848513082019053399562835693359375,
        "lon": 32.26100000000000278532752417959272861480712890625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 21:19 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 35m
  • Data Points: 10 AIS positions
  • Period: 2026-08-25T21:19:14+00:00 to 2026-08-25T23:54:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 155.5,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-08-25T21:19:14+00:00",
        "lat": 31.660851699999998487555785686708986759185791015625,
        "lon": 32.26072669999999931178535916842520236968994140625
    },
    "last_point": {
        "ts": "2026-08-25T23:54:44+00:00",
        "lat": 31.661003300000000848513082019053399562835693359375,
        "lon": 32.26100000000000278532752417959272861480712890625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 21:19 UTC 75.0%
  • Duration: 2h 35m
  • Radius: 23 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.6609, 32.2609
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 22.60000000000000142108547152020037174224853515625,
    "duration_minutes": 155.5,
    "points": 10,
    "centroid": {
        "lat": 31.660947669999995213174770469777286052703857421875,
        "lon": 32.26093651000000050999005907215178012847900390625
    },
    "bbox": {
        "min_lat": 31.66084169999999886613295529969036579132080078125,
        "min_lon": 32.26072669999999931178535916842520236968994140625,
        "max_lat": 31.661028300000001678426997386850416660308837890625,
        "max_lon": 32.26102499999999650981408194638788700103759765625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 20:46 UTC 75.0%
  • Duration: 3h 8m
  • Radius: 202 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.6612, 32.2606
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 201.5,
    "duration_minutes": 188.19999999999998863131622783839702606201171875,
    "points": 13,
    "centroid": {
        "lat": 31.661233076923078755271490081213414669036865234375,
        "lon": 32.26061346153846187689850921742618083953857421875
    },
    "bbox": {
        "min_lat": 31.66084169999999886613295529969036579132080078125,
        "min_lon": 32.2590833000000003494278644211590290069580078125,
        "max_lat": 31.66268000000000171212377608753740787506103515625,
        "max_lon": 32.26102499999999650981408194638788700103759765625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 20:46 UTC 80.0%
  • Zone: discovered_023
  • Duration: 3h 8m
  • Data Points: 13 AIS positions
  • Period: 2026-08-25T20:46:33+00:00 to 2026-08-25T23:54:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 188.19999999999998863131622783839702606201171875,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-25T20:46:33+00:00",
        "lat": 31.66138000000000118916432256810367107391357421875,
        "lon": 32.25950830000000024710971047170460224151611328125
    },
    "last_point": {
        "ts": "2026-08-25T23:54:44+00:00",
        "lat": 31.661003300000000848513082019053399562835693359375,
        "lon": 32.26100000000000278532752417959272861480712890625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 18:11 UTC 80.0%
  • Zone: discovered_023
  • Duration: 5h 43m
  • Data Points: 16 AIS positions
  • Period: 2026-08-25T18:11:03+00:00 to 2026-08-25T23:54:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 343.69999999999998863131622783839702606201171875,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-08-25T18:11:03+00:00",
        "lat": 31.654765000000001151647666119970381259918212890625,
        "lon": 32.244228300000003173408913426101207733154296875
    },
    "last_point": {
        "ts": "2026-08-25T23:54:44+00:00",
        "lat": 31.661003300000000848513082019053399562835693359375,
        "lon": 32.26100000000000278532752417959272861480712890625
    }
}
Methodology: 2026.01.18
Sts discovered_023
Aug 25, 2026 17:08 UTC 90/100
Vessel A: PROMETEY (PROMETEY) RUSSIA
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 61 meters
  • Average Distance: 64 meters
  • Duration: 1h 30m
  • Period: 2026-08-25T17:17:49+00:00 to 2026-08-25T18:47:55+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (PROMETEY and PIERO A) maintained close proximity (min 61m, avg 64m) for 90 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
FactorScoreDetail
Distance Tightness25/25Min distance 61m, avg 64m
Duration20/25Duration 90 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270850,
        "imo": 9832559,
        "name": "PROMETEY",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 61.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 64.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 90.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 5406,
    "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": "2026-08-25T17:17:49+00:00",
        "end": "2026-08-25T18:47:55+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 61m, avg 64m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 90 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PROMETEY and PIERO A) maintained close proximity (min 61m, avg 64m) for 90 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."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 17:01 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 30m
  • Data Points: 23 AIS positions
  • Period: 2026-08-25T17:24:46+00:00 to 2026-08-25T23:54:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-08-25T17:24:46+00:00",
        "lat": 31.654798299999999500187186640687286853790283203125,
        "lon": 32.244253299999996897895471192896366119384765625
    },
    "last_point": {
        "ts": "2026-08-25T23:54:44+00:00",
        "lat": 31.661003300000000848513082019053399562835693359375,
        "lon": 32.26100000000000278532752417959272861480712890625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 17:01 UTC 75.0%
  • Duration: 1h 39m
  • Radius: 9 meters
  • Data Points: 15 AIS positions
  • Centroid: 31.6548, 32.2442
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 9,
    "duration_minutes": 99.7000000000000028421709430404007434844970703125,
    "points": 15,
    "centroid": {
        "lat": 31.654812886666665150414701201952993869781494140625,
        "lon": 32.2442400000000048976289690472185611724853515625
    },
    "bbox": {
        "min_lat": 31.654765000000001151647666119970381259918212890625,
        "min_lon": 32.2441816999999986137481755577027797698974609375,
        "max_lat": 31.654869999999998952944224583916366100311279296875,
        "max_lon": 32.24430670000000276331775239668786525726318359375
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Sts discovered_023
Aug 25, 2026 16:12 UTC 95/100
Vessel A: PROMETEY (PROMETEY) RUSSIA
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 61 meters
  • Average Distance: 64 meters
  • Duration: 2h 21m
  • Period: 2026-08-25T16:26:51+00:00 to 2026-08-25T18:47:55+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PROMETEY and PIERO A) maintained close proximity (min 61m, avg 64m) for 141 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
FactorScoreDetail
Distance Tightness25/25Min distance 61m, avg 64m
Duration25/25Duration 141 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270850,
        "imo": 9832559,
        "name": "PROMETEY",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 60.60000000000000142108547152020037174224853515625,
    "avg_distance_m": 63.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 141.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 8464,
    "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": "2026-08-25T16:26:51+00:00",
        "end": "2026-08-25T18:47:55+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 61m, avg 64m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 141 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PROMETEY and PIERO A) maintained close proximity (min 61m, avg 64m) for 141 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."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 16:04 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 33m
  • Data Points: 33 AIS positions
  • Period: 2026-08-25T16:22:04+00:00 to 2026-08-25T22:55:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 393.19999999999998863131622783839702606201171875,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-08-25T16:22:04+00:00",
        "lat": 31.654843299999999572946762782521545886993408203125,
        "lon": 32.24432170000000041909515857696533203125
    },
    "last_point": {
        "ts": "2026-08-25T22:55:14+00:00",
        "lat": 31.660966699999999462988853338174521923065185546875,
        "lon": 32.260975000000001955413608811795711517333984375
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 16:04 UTC 75.0%
  • Duration: 2h 36m
  • Radius: 22 meters
  • Data Points: 28 AIS positions
  • Centroid: 31.6548, 32.2443
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 21.699999999999999289457264239899814128875732421875,
    "duration_minutes": 156.69999999999998863131622783839702606201171875,
    "points": 28,
    "centroid": {
        "lat": 31.654828271428566921485980856232345104217529296875,
        "lon": 32.2442889285714358038603677414357662200927734375
    },
    "bbox": {
        "min_lat": 31.654765000000001151647666119970381259918212890625,
        "min_lon": 32.2441816999999986137481755577027797698974609375,
        "max_lat": 31.65492830000000168411133927293121814727783203125,
        "max_lon": 32.24448499999999739884515292942523956298828125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_023
Aug 25, 2026 15:05 UTC 95/100
Vessel A: PROMETEY (PROMETEY) RUSSIA
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 57 meters
  • Average Distance: 68 meters
  • Duration: 3h 42m
  • Period: 2026-08-25T15:05:51+00:00 to 2026-08-25T18:47:55+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: discovered_023

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PROMETEY and PIERO A) maintained close proximity (min 57m, avg 68m) for 222 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 57m, avg 68m
Duration25/25Duration 222 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±21m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-25T21:45:01.564828+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270850,
        "imo": 9832559,
        "name": "PROMETEY",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 57.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 67.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 21.300000000000000710542735760100185871124267578125,
    "duration_minutes": 222.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 13324,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_std": 0.270000000000000017763568394002504646778106689453125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        }
    },
    "time_window": {
        "start": "2026-08-25T15:05:51+00:00",
        "end": "2026-08-25T18:47:55+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 57m, avg 68m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 222 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b121m"
            },
            "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 (PROMETEY and PIERO A) maintained close proximity (min 57m, avg 68m) for 222 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.654535599999999107012627064250409603118896484375,
            "lon": 32.244360000000000354702933691442012786865234375
        },
        "time_window": {
            "start_ts": "2026-08-25T15:05:51+00:00",
            "end_ts": "2026-08-25T18:47:55+00:00"
        },
        "searched_at": "2026-08-25T21:45:01.564828+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 15:01 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 29m
  • Data Points: 37 AIS positions
  • Period: 2026-08-25T15:53:24+00:00 to 2026-08-25T22:23:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 389.80000000000001136868377216160297393798828125,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-08-25T15:53:24+00:00",
        "lat": 31.654939999999999855617716093547642230987548828125,
        "lon": 32.244450000000000500222085975110530853271484375
    },
    "last_point": {
        "ts": "2026-08-25T22:23:12+00:00",
        "lat": 31.661006700000001501393853686749935150146484375,
        "lon": 32.26102499999999650981408194638788700103759765625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 15:01 UTC 75.0%
  • Duration: 3h 39m
  • Radius: 293 meters
  • Data Points: 41 AIS positions
  • Centroid: 31.6548, 32.2444
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 292.69999999999998863131622783839702606201171875,
    "duration_minutes": 219.5,
    "points": 41,
    "centroid": {
        "lat": 31.654772114634152302414804580621421337127685546875,
        "lon": 32.2444431707317136215351638384163379669189453125
    },
    "bbox": {
        "min_lat": 31.653266699999999644887793692760169506072998046875,
        "min_lon": 32.2441816999999986137481755577027797698974609375,
        "max_lat": 31.6549499999999994770405464805662631988525390625,
        "max_lon": 32.24697830000000209338395507074892520904541015625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Sts discovered_023
Aug 25, 2026 14:50 UTC 85/100
Vessel A: PROMETEY (PROMETEY) RUSSIA
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 57 meters
  • Average Distance: 80 meters
  • Duration: 3h 57m
  • Period: 2026-08-25T14:50:45+00:00 to 2026-08-25T18:47:55+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: discovered_023

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (PROMETEY and PIERO A) maintained close proximity (min 57m, avg 80m) for 237 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). Moderate distance variation observed during the encounter. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 57m, avg 80m
Duration25/25Duration 237 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency8/15Distance variance ±63m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270850,
        "imo": 9832559,
        "name": "PROMETEY",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 57.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 80.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 62.60000000000000142108547152020037174224853515625,
    "duration_minutes": 237.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 14230,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_std": 0.34999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 1.1999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-08-25T14:50:45+00:00",
        "end": "2026-08-25T18:47:55+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 57m, avg 80m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 237 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b163m"
            },
            "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 (PROMETEY and PIERO A) maintained close proximity (min 57m, avg 80m) for 237 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). Moderate distance variation observed during the encounter. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 14:42 UTC 75.0%
  • Duration: 3h 58m
  • Radius: 1,330 meters
  • Data Points: 45 AIS positions
  • Centroid: 31.6543, 32.2451
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 1330.299999999999954525264911353588104248046875,
    "duration_minutes": 238.5,
    "points": 45,
    "centroid": {
        "lat": 31.654258148888903434681196813471615314483642578125,
        "lon": 32.24512500000000869704308570362627506256103515625
    },
    "bbox": {
        "min_lat": 31.645881700000000336103767040185630321502685546875,
        "min_lon": 32.2441816999999986137481755577027797698974609375,
        "max_lat": 31.6549499999999994770405464805662631988525390625,
        "max_lon": 32.25516669999999663787093595601618289947509765625
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 14:03 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 25m
  • Data Points: 48 AIS positions
  • Period: 2026-08-25T14:59:35+00:00 to 2026-08-25T21:24:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 385.30000000000001136868377216160297393798828125,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-08-25T14:59:35+00:00",
        "lat": 31.65273330000000129302861751057207584381103515625,
        "lon": 32.24769330000000167046891874633729457855224609375
    },
    "last_point": {
        "ts": "2026-08-25T21:24:54+00:00",
        "lat": 31.660893300000001460148268961347639560699462890625,
        "lon": 32.26091670000000277696017292328178882598876953125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 13:57 UTC 80.0%
  • Zone: discovered_023
  • Duration: 4h 43m
  • Data Points: 57 AIS positions
  • Period: 2026-08-25T13:57:53+00:00 to 2026-08-25T18:41:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 283.3999999999999772626324556767940521240234375,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-08-25T13:57:53+00:00",
        "lat": 31.600331700000001688977135927416384220123291015625,
        "lon": 32.27545500000000089357854449190199375152587890625
    },
    "last_point": {
        "ts": "2026-08-25T18:41:14+00:00",
        "lat": 31.65484670000000022582753445021808147430419921875,
        "lon": 32.2442350000000033105607144534587860107421875
    }
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 25, 2026 12:09 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 2h 6m
  • Data Points: 12 AIS positions
  • Period: 2026-08-25T12:09:33+00:00 to 2026-08-25T14:16:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 126.7000000000000028421709430404007434844970703125,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-08-25T12:09:33+00:00",
        "lat": 31.590238299999999327383193303830921649932861328125,
        "lon": 32.279550000000000409272615797817707061767578125
    },
    "last_point": {
        "ts": "2026-08-25T14:16:14+00:00",
        "lat": 31.6194516999999990503056324087083339691162109375,
        "lon": 32.26892670000000151731001096777617931365966796875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 12:09 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 26m
  • Data Points: 62 AIS positions
  • Period: 2026-08-25T12:15:13+00:00 to 2026-08-25T18:41:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 386,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-08-25T12:15:13+00:00",
        "lat": 31.5902482999999989488060236908495426177978515625,
        "lon": 32.27951329999999785513864480890333652496337890625
    },
    "last_point": {
        "ts": "2026-08-25T18:41:14+00:00",
        "lat": 31.65484670000000022582753445021808147430419921875,
        "lon": 32.2442350000000033105607144534587860107421875
    }
}
Methodology: 2026.01.18
Sts discovered_023
Aug 25, 2026 11:09 UTC 90/100
Vessel A: IMO 9297369 (URSUS ARCTOS) Liberia
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 71 meters
  • Average Distance: 78 meters
  • Duration: 1h 36m
  • Period: 2026-08-25T11:09:58+00:00 to 2026-08-25T12:46:01+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 71m, avg 78m) for 96 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
FactorScoreDetail
Distance Tightness25/25Min distance 71m, avg 78m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636022405,
        "imo": 9297369,
        "name": "URSUS ARCTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 70.900000000000005684341886080801486968994140625,
    "avg_distance_m": 78,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 96,
    "overlap_duration_s": 5763,
    "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": "2026-08-25T11:09:58+00:00",
        "end": "2026-08-25T12:46:01+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 71m, avg 78m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 71m, avg 78m) for 96 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."
    }
}
Methodology: 2026.01.18
Sts Malacca Strait Surveillance Zone
Aug 25, 2026 11:09 UTC 90/100
Vessel A: IMO 9297369 (URSUS ARCTOS) Liberia
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 71 meters
  • Average Distance: 78 meters
  • Duration: 1h 36m
  • Period: 2026-08-25T11:09:58+00:00 to 2026-08-25T12:46:01+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 71m, avg 78m) for 96 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 71m, avg 78m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636022405,
        "imo": 9297369,
        "name": "URSUS ARCTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 70.900000000000005684341886080801486968994140625,
    "avg_distance_m": 78,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 96,
    "overlap_duration_s": 5763,
    "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": "2026-08-25T11:09:58+00:00",
        "end": "2026-08-25T12:46:01+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 71m, avg 78m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 71m, avg 78m) for 96 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 Malacca Strait Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 25, 2026 11:03 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 3h 13m
  • Data Points: 22 AIS positions
  • Period: 2026-08-25T11:03:14+00:00 to 2026-08-25T14:16:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 193,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-08-25T11:03:14+00:00",
        "lat": 31.590546700000000868158167577348649501800537109375,
        "lon": 32.2797316999999992503944667987525463104248046875
    },
    "last_point": {
        "ts": "2026-08-25T14:16:14+00:00",
        "lat": 31.6194516999999990503056324087083339691162109375,
        "lon": 32.26892670000000151731001096777617931365966796875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 11:03 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 24m
  • Data Points: 64 AIS positions
  • Period: 2026-08-25T11:46:14+00:00 to 2026-08-25T18:11:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 384.80000000000001136868377216160297393798828125,
    "points_in_zone": 64,
    "first_point": {
        "ts": "2026-08-25T11:46:14+00:00",
        "lat": 31.59046000000000020691004465334117412567138671875,
        "lon": 32.27966169999999834772097528912127017974853515625
    },
    "last_point": {
        "ts": "2026-08-25T18:11:03+00:00",
        "lat": 31.654765000000001151647666119970381259918212890625,
        "lon": 32.244228300000003173408913426101207733154296875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 11:03 UTC 75.0%
  • Duration: 2h 54m
  • Radius: 1,106 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5909, 32.2794
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 1105.59999999999990905052982270717620849609375,
    "duration_minutes": 174.69999999999998863131622783839702606201171875,
    "points": 17,
    "centroid": {
        "lat": 31.59093843529411316239929874427616596221923828125,
        "lon": 32.27936225882353227234489168040454387664794921875
    },
    "bbox": {
        "min_lat": 31.590174999999998561861502821557223796844482421875,
        "min_lon": 32.27545500000000089357854449190199375152587890625,
        "max_lat": 31.600331700000001688977135927416384220123291015625,
        "max_lon": 32.2797316999999992503944667987525463104248046875
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 25, 2026 11:03 UTC 75.0%
  • Duration: 2h 54m
  • Radius: 1,106 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5909, 32.2794
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1105.59999999999990905052982270717620849609375,
    "duration_minutes": 174.69999999999998863131622783839702606201171875,
    "points": 17,
    "centroid": {
        "lat": 31.59093843529411316239929874427616596221923828125,
        "lon": 32.27936225882353227234489168040454387664794921875
    },
    "bbox": {
        "min_lat": 31.590174999999998561861502821557223796844482421875,
        "min_lon": 32.27545500000000089357854449190199375152587890625,
        "max_lat": 31.600331700000001688977135927416384220123291015625,
        "max_lon": 32.2797316999999992503944667987525463104248046875
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 25, 2026 10:00 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 4h 16m
  • Data Points: 26 AIS positions
  • Period: 2026-08-25T10:00:15+00:00 to 2026-08-25T14:16:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 256,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-08-25T10:00:15+00:00",
        "lat": 31.590810000000001167563823400996625423431396484375,
        "lon": 32.2797800000000023601387511007487773895263671875
    },
    "last_point": {
        "ts": "2026-08-25T14:16:14+00:00",
        "lat": 31.6194516999999990503056324087083339691162109375,
        "lon": 32.26892670000000151731001096777617931365966796875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 10:00 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 30m
  • Data Points: 65 AIS positions
  • Period: 2026-08-25T10:53:54+00:00 to 2026-08-25T17:24:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-08-25T10:53:54+00:00",
        "lat": 31.590689999999998605062501155771315097808837890625,
        "lon": 32.2797733000000022229869500733911991119384765625
    },
    "last_point": {
        "ts": "2026-08-25T17:24:46+00:00",
        "lat": 31.654798299999999500187186640687286853790283203125,
        "lon": 32.244253299999996897895471192896366119384765625
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 10:00 UTC 75.0%
  • Duration: 3h 57m
  • Radius: 1,111 meters
  • Data Points: 21 AIS positions
  • Centroid: 31.5909, 32.2794
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 1111.40000000000009094947017729282379150390625,
    "duration_minutes": 237.599999999999994315658113919198513031005859375,
    "points": 21,
    "centroid": {
        "lat": 31.590907704761900021139808814041316509246826171875,
        "lon": 32.27944261904762157655568444170057773590087890625
    },
    "bbox": {
        "min_lat": 31.590174999999998561861502821557223796844482421875,
        "min_lon": 32.27545500000000089357854449190199375152587890625,
        "max_lat": 31.600331700000001688977135927416384220123291015625,
        "max_lon": 32.27980500000000319005266646854579448699951171875
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 25, 2026 10:00 UTC 75.0%
  • Duration: 3h 57m
  • Radius: 1,111 meters
  • Data Points: 21 AIS positions
  • Centroid: 31.5909, 32.2794
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1111.40000000000009094947017729282379150390625,
    "duration_minutes": 237.599999999999994315658113919198513031005859375,
    "points": 21,
    "centroid": {
        "lat": 31.590907704761900021139808814041316509246826171875,
        "lon": 32.27944261904762157655568444170057773590087890625
    },
    "bbox": {
        "min_lat": 31.590174999999998561861502821557223796844482421875,
        "min_lon": 32.27545500000000089357854449190199375152587890625,
        "max_lat": 31.600331700000001688977135927416384220123291015625,
        "max_lon": 32.27980500000000319005266646854579448699951171875
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_023
Aug 25, 2026 09:21 UTC 85/100
Vessel A: IMO 9297369 (URSUS ARCTOS) Liberia
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 73 meters
  • Average Distance: 74 meters
  • Duration: 1 hours
  • Period: 2026-08-25T09:21:57+00:00 to 2026-08-25T10:21:59+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 73m, avg 74m) for 60 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
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 74m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-25T10:30:20.085890+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636022405,
        "imo": 9297369,
        "name": "URSUS ARCTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 72.599999999999994315658113919198513031005859375,
    "avg_distance_m": 74.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 60,
    "overlap_duration_s": 3602,
    "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": "2026-08-25T09:21:57+00:00",
        "end": "2026-08-25T10:21:59+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 74m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 73m, avg 74m) for 60 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."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.59066169999999829087755642831325531005859375,
            "lon": 32.2800447999999988724084687419235706329345703125
        },
        "time_window": {
            "start_ts": "2026-08-25T09:21:57+00:00",
            "end_ts": "2026-08-25T10:21:59+00:00"
        },
        "searched_at": "2026-08-25T10:30:20.085890+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Malacca Strait Surveillance Zone
Aug 25, 2026 09:21 UTC 85/100
Vessel A: IMO 9297369 (URSUS ARCTOS) Liberia
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 73 meters
  • Average Distance: 74 meters
  • Duration: 1 hours
  • Period: 2026-08-25T09:21:57+00:00 to 2026-08-25T10:21:59+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 73m, avg 74m) for 60 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 74m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-25T10:45:02.074702+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636022405,
        "imo": 9297369,
        "name": "URSUS ARCTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 72.599999999999994315658113919198513031005859375,
    "avg_distance_m": 74.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 60,
    "overlap_duration_s": 3602,
    "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": "2026-08-25T09:21:57+00:00",
        "end": "2026-08-25T10:21:59+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 74m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (URSUS ARCTOS and PIERO A) maintained close proximity (min 73m, avg 74m) for 60 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.59066169999999829087755642831325531005859375,
            "lon": 32.2800447999999988724084687419235706329345703125
        },
        "time_window": {
            "start_ts": "2026-08-25T09:21:57+00:00",
            "end_ts": "2026-08-25T10:21:59+00:00"
        },
        "searched_at": "2026-08-25T10:45:02.074702+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 09:10 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 37m
  • Data Points: 59 AIS positions
  • Period: 2026-08-25T09:52:42+00:00 to 2026-08-25T16:29:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 397.19999999999998863131622783839702606201171875,
    "points_in_zone": 59,
    "first_point": {
        "ts": "2026-08-25T09:52:42+00:00",
        "lat": 31.590945000000001385842551826499402523040771484375,
        "lon": 32.27988330000000161135176313109695911407470703125
    },
    "last_point": {
        "ts": "2026-08-25T16:29:53+00:00",
        "lat": 31.654856699999999847250364837236702442169189453125,
        "lon": 32.2443549999999987676346790976822376251220703125
    }
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 25, 2026 09:10 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 5m
  • Data Points: 32 AIS positions
  • Period: 2026-08-25T09:10:53+00:00 to 2026-08-25T14:16:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 305.3999999999999772626324556767940521240234375,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-08-25T09:10:53+00:00",
        "lat": 31.5913867000000010420990292914211750030517578125,
        "lon": 32.27983499999999850160747882910072803497314453125
    },
    "last_point": {
        "ts": "2026-08-25T14:16:14+00:00",
        "lat": 31.6194516999999990503056324087083339691162109375,
        "lon": 32.26892670000000151731001096777617931365966796875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 09:10 UTC 75.0%
  • Duration: 4h 47m
  • Radius: 1,110 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5909, 32.2795
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 1110,
    "duration_minutes": 287,
    "points": 27,
    "centroid": {
        "lat": 31.59094914074074011978154885582625865936279296875,
        "lon": 32.27953203703703621840759296901524066925048828125
    },
    "bbox": {
        "min_lat": 31.590174999999998561861502821557223796844482421875,
        "min_lon": 32.27545500000000089357854449190199375152587890625,
        "max_lat": 31.600331700000001688977135927416384220123291015625,
        "max_lon": 32.27988330000000161135176313109695911407470703125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 25, 2026 09:10 UTC 75.0%
  • Duration: 4h 47m
  • Radius: 1,110 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5909, 32.2795
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1110,
    "duration_minutes": 287,
    "points": 27,
    "centroid": {
        "lat": 31.59094914074074011978154885582625865936279296875,
        "lon": 32.27953203703703621840759296901524066925048828125
    },
    "bbox": {
        "min_lat": 31.590174999999998561861502821557223796844482421875,
        "min_lon": 32.27545500000000089357854449190199375152587890625,
        "max_lat": 31.600331700000001688977135927416384220123291015625,
        "max_lon": 32.27988330000000161135176313109695911407470703125
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 03:00 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 27m
  • Data Points: 7 AIS positions
  • Period: 2026-08-25T03:25:42+00:00 to 2026-08-25T09:52:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 387,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-08-25T03:25:42+00:00",
        "lat": 31.66149169999999912761268205940723419189453125,
        "lon": 32.22536170000000055324562708847224712371826171875
    },
    "last_point": {
        "ts": "2026-08-25T09:52:42+00:00",
        "lat": 31.590945000000001385842551826499402523040771484375,
        "lon": 32.27988330000000161135176313109695911407470703125
    }
}
Methodology: 2026.01.18
Sts discovered_023
Aug 25, 2026 02:39 UTC 80/100
Vessel A: IMO 9010955 (PIERO A) COMOROS
Vessel B: CHARIOT TIDE (CHARIOT TIDE) MYANMAR
  • Minimum Distance: 46 meters
  • Average Distance: 51 meters
  • Duration: 46 minutes
  • Period: 2026-08-25T02:39:21+00:00 to 2026-08-25T03:25:42+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (PIERO A and CHARIOT TIDE) maintained close proximity (min 46m, avg 51m) for 46 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
FactorScoreDetail
Distance Tightness25/25Min distance 46m, avg 51m
Duration10/25Duration 46 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "vessel_b": {
        "mmsi": 506022300,
        "imo": 9323376,
        "name": "CHARIOT TIDE",
        "flag": "MYANMAR"
    },
    "min_distance_m": 46.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 50.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 46.39999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2781,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-25T02:39:21+00:00",
        "end": "2026-08-25T03:25:42+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 46m, avg 51m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 46 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 (PIERO A and CHARIOT TIDE) maintained close proximity (min 46m, avg 51m) for 46 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."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 02:04 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 33m
  • Data Points: 7 AIS positions
  • Period: 2026-08-25T02:52:33+00:00 to 2026-08-25T09:25:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 393,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-08-25T02:52:33+00:00",
        "lat": 31.661456699999998676275936304591596126556396484375,
        "lon": 32.22531670000000048048605094663798809051513671875
    },
    "last_point": {
        "ts": "2026-08-25T09:25:33+00:00",
        "lat": 31.591041700000001668513505137525498867034912109375,
        "lon": 32.279861699999997881604940630495548248291015625
    }
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_023
Aug 25, 2026 01:42 UTC 90/100
Vessel A: CHARIOT TIDE (CHARIOT TIDE) MYANMAR
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 46 meters
  • Average Distance: 50 meters
  • Duration: 1h 41m
  • Period: 2026-08-25T01:42:10+00:00 to 2026-08-25T03:23:27+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CHARIOT TIDE and PIERO A) maintained close proximity (min 46m, avg 50m) 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 46m, avg 50m
Duration20/25Duration 101 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-25T07:45:01.875970+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 506022300,
        "imo": 9323376,
        "name": "CHARIOT TIDE",
        "flag": "MYANMAR"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 46.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 49.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 3,
    "duration_minutes": 101.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 6077,
    "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": "2026-08-25T01:42:10+00:00",
        "end": "2026-08-25T03:23:27+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 46m, avg 50m"
            },
            "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 \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 (CHARIOT TIDE and PIERO A) maintained close proximity (min 46m, avg 50m) 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.661317900000000236104824580252170562744140625,
            "lon": 32.22554629999999775691321701742708683013916015625
        },
        "time_window": {
            "start_ts": "2026-08-25T01:42:10+00:00",
            "end_ts": "2026-08-25T03:23:27+00:00"
        },
        "searched_at": "2026-08-25T07:45:01.875970+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 01:41 UTC 80.0%
  • Zone: discovered_023
  • Duration: 1h 44m
  • Data Points: 19 AIS positions
  • Period: 2026-08-25T01:41:22+00:00 to 2026-08-25T03:25:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 104.2999999999999971578290569595992565155029296875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-08-25T01:41:22+00:00",
        "lat": 31.661339999999999150759322219528257846832275390625,
        "lon": 32.22530330000000020618244889192283153533935546875
    },
    "last_point": {
        "ts": "2026-08-25T03:25:42+00:00",
        "lat": 31.66149169999999912761268205940723419189453125,
        "lon": 32.22536170000000055324562708847224712371826171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 01:41 UTC 75.0%
  • Duration: 1h 44m
  • Radius: 19 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.6615, 32.2254
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 19.199999999999999289457264239899814128875732421875,
    "duration_minutes": 104.2999999999999971578290569595992565155029296875,
    "points": 19,
    "centroid": {
        "lat": 31.66146534736841289259245968423783779144287109375,
        "lon": 32.225354210526319320706534199416637420654296875
    },
    "bbox": {
        "min_lat": 31.66132999999999952933649183250963687896728515625,
        "min_lon": 32.2252849999999995134203345514833927154541015625,
        "max_lat": 31.661636699999998967314240871928632259368896484375,
        "max_lon": 32.2254300000000029058355721645057201385498046875
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Sts discovered_023
Aug 25, 2026 00:15 UTC 95/100
Vessel A: CHARIOT TIDE (CHARIOT TIDE) MYANMAR
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 46 meters
  • Average Distance: 50 meters
  • Duration: 2h 34m
  • Period: 2026-08-25T00:48:31+00:00 to 2026-08-25T03:23:27+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (CHARIOT TIDE and PIERO A) maintained close proximity (min 46m, avg 50m) for 155 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
FactorScoreDetail
Distance Tightness25/25Min distance 46m, avg 50m
Duration25/25Duration 155 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 506022300,
        "imo": 9323376,
        "name": "CHARIOT TIDE",
        "flag": "MYANMAR"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 46.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 49.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 154.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 9296,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-08-25T00:48:31+00:00",
        "end": "2026-08-25T03:23:27+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 46m, avg 50m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 155 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 (CHARIOT TIDE and PIERO A) maintained close proximity (min 46m, avg 50m) for 155 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."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 25, 2026 00:03 UTC 80.0%
  • Zone: discovered_023
  • Duration: 3h 22m
  • Data Points: 34 AIS positions
  • Period: 2026-08-25T00:03:22+00:00 to 2026-08-25T03:25:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 202.30000000000001136868377216160297393798828125,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-08-25T00:03:22+00:00",
        "lat": 31.660823300000000557474777451716363430023193359375,
        "lon": 32.22514170000000177651600097306072711944580078125
    },
    "last_point": {
        "ts": "2026-08-25T03:25:42+00:00",
        "lat": 31.66149169999999912761268205940723419189453125,
        "lon": 32.22536170000000055324562708847224712371826171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 25, 2026 00:03 UTC 75.0%
  • Duration: 3h 22m
  • Radius: 83 meters
  • Data Points: 34 AIS positions
  • Centroid: 31.6613, 32.2253
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 83.099999999999994315658113919198513031005859375,
    "duration_minutes": 202.30000000000001136868377216160297393798828125,
    "points": 34,
    "centroid": {
        "lat": 31.661309508823524794252080027945339679718017578125,
        "lon": 32.22527843529411484269076026976108551025390625
    },
    "bbox": {
        "min_lat": 31.660624999999999573674358543939888477325439453125,
        "min_lon": 32.2248833000000018955688574351370334625244140625,
        "max_lat": 31.661636699999998967314240871928632259368896484375,
        "max_lon": 32.2254300000000029058355721645057201385498046875
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Sts discovered_023
Aug 24, 2026 23:29 UTC 95/100
Vessel A: CHARIOT TIDE (CHARIOT TIDE) MYANMAR
Vessel B: IMO 9010955 (PIERO A) COMOROS
  • Minimum Distance: 22 meters
  • Average Distance: 47 meters
  • Duration: 3h 25m
  • Period: 2026-08-24T23:36:59+00:00 to 2026-08-25T03:02:35+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_023

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (CHARIOT TIDE and PIERO A) maintained close proximity (min 22m, avg 47m) for 206 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
FactorScoreDetail
Distance Tightness25/25Min distance 22m, avg 47m
Duration25/25Duration 206 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±11m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 506022300,
        "imo": 9323376,
        "name": "CHARIOT TIDE",
        "flag": "MYANMAR"
    },
    "vessel_b": {
        "mmsi": 620800105,
        "imo": 9010955,
        "name": "PIERO A",
        "flag": "COMOROS"
    },
    "min_distance_m": 21.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 47.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 10.699999999999999289457264239899814128875732421875,
    "duration_minutes": 205.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 12336,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-08-24T23:36:59+00:00",
        "end": "2026-08-25T03:02:35+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 22m, avg 47m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 206 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b111m"
            },
            "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 (CHARIOT TIDE and PIERO A) maintained close proximity (min 22m, avg 47m) for 206 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."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 24, 2026 23:02 UTC 80.0%
  • Zone: discovered_023
  • Duration: 4h 23m
  • Data Points: 43 AIS positions
  • Period: 2026-08-24T23:02:22+00:00 to 2026-08-25T03:25:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 263.30000000000001136868377216160297393798828125,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-08-24T23:02:22+00:00",
        "lat": 31.654279999999999972715158946812152862548828125,
        "lon": 32.22602169999999688343450543470680713653564453125
    },
    "last_point": {
        "ts": "2026-08-25T03:25:42+00:00",
        "lat": 31.66149169999999912761268205940723419189453125,
        "lon": 32.22536170000000055324562708847224712371826171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 24, 2026 23:02 UTC 75.0%
  • Duration: 4h 23m
  • Radius: 772 meters
  • Data Points: 43 AIS positions
  • Centroid: 31.6608, 32.2257
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 772.3999999999999772626324556767940521240234375,
    "duration_minutes": 263.30000000000001136868377216160297393798828125,
    "points": 43,
    "centroid": {
        "lat": 31.660794262790684427955056889913976192474365234375,
        "lon": 32.22573039069767020237122778780758380889892578125
    },
    "bbox": {
        "min_lat": 31.654279999999999972715158946812152862548828125,
        "min_lon": 32.2248833000000018955688574351370334625244140625,
        "max_lat": 31.661636699999998967314240871928632259368896484375,
        "max_lon": 32.2321017000000011876181815750896930694580078125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 24, 2026 22:59 UTC 75.0%
  • Duration: 4h 26m
  • Radius: 885 meters
  • Data Points: 44 AIS positions
  • Centroid: 31.6606, 32.2257
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 884.700000000000045474735088646411895751953125,
    "duration_minutes": 266.30000000000001136868377216160297393798828125,
    "points": 44,
    "centroid": {
        "lat": 31.660619393181807623705026344396173954010009765625,
        "lon": 32.2256578068181767093847156502306461334228515625
    },
    "bbox": {
        "min_lat": 31.653099999999998459543348872102797031402587890625,
        "min_lon": 32.22253669999999914352883934043347835540771484375,
        "max_lat": 31.661636699999998967314240871928632259368896484375,
        "max_lon": 32.2321017000000011876181815750896930694580078125
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 24, 2026 22:07 UTC 80.0%
  • Zone: discovered_023
  • Duration: 5h 18m
  • Data Points: 53 AIS positions
  • Period: 2026-08-24T22:07:21+00:00 to 2026-08-25T03:25:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 318.3999999999999772626324556767940521240234375,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-08-24T22:07:21+00:00",
        "lat": 31.643931699999999551664586761035025119781494140625,
        "lon": 32.20960500000000337195160682313144207000732421875
    },
    "last_point": {
        "ts": "2026-08-25T03:25:42+00:00",
        "lat": 31.66149169999999912761268205940723419189453125,
        "lon": 32.22536170000000055324562708847224712371826171875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_023
Aug 24, 2026 21:04 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 20m
  • Data Points: 57 AIS positions
  • Period: 2026-08-24T21:04:53+00:00 to 2026-08-25T03:25:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 380.80000000000001136868377216160297393798828125,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-08-24T21:04:53+00:00",
        "lat": 31.64392670000000151731001096777617931365966796875,
        "lon": 32.2096149999999994406607584096491336822509765625
    },
    "last_point": {
        "ts": "2026-08-25T03:25:42+00:00",
        "lat": 31.66149169999999912761268205940723419189453125,
        "lon": 32.22536170000000055324562708847224712371826171875
    }
}
Methodology: 2026.01.18
Loiter discovered_023
Aug 24, 2026 21:04 UTC 75.0%
  • Duration: 1h 49m
  • Radius: 865 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.6450, 32.2105
  • Zone: discovered_023
Show Raw Evidence JSON
{
    "radius_m": 865.1000000000000227373675443232059478759765625,
    "duration_minutes": 109.5,
    "points": 13,
    "centroid": {
        "lat": 31.645044492307700778610524139367043972015380859375,
        "lon": 32.2105414076923040056499303318560123443603515625
    },
    "bbox": {
        "min_lat": 31.64365000000000094360075308941304683685302734375,
        "min_lon": 32.20869499999999874262357479892671108245849609375,
        "max_lat": 31.65041000000000082081896835006773471832275390625,
        "max_lon": 32.21716330000000283462213701568543910980224609375
    },
    "zone_id": "discovered_023"
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Aug 27 22:25 31.8325 31.4577 8.0 kn 279.8° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:47 31.8122 31.7181 8.2 kn 274.8° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:34 31.8108 31.7533 8.2 kn 272.3° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:32 31.8105 31.7596 8.2 kn 270.8° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:28 31.8100 31.7704 8.2 kn 271.5° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:24 31.8096 31.7798 8.2 kn 270.9° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:23 31.8096 31.7829 8.2 kn 269.4° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:21 31.8094 31.7883 8.2 kn 276.1° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:20 31.8091 31.7910 8.1 kn 274.9° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:18 31.8089 31.7963 8.1 kn 270.9° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 20:10 31.8099 31.8167 8.1 kn 264.5° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 19:27 31.8022 31.9260 8.4 kn 326.2° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 18:12 31.7436 32.1154 8.5 kn 299.9° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 18:04 31.7331 32.1349 8.5 kn 302.8° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 18:02 31.7311 32.1384 8.4 kn 303.6° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 17:44 31.7070 32.1815 8.3 kn 302.6° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 17:41 31.7036 32.1876 8.4 kn 304.6° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 17:33 31.6939 32.2057 8.2 kn 301.2° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 17:31 31.6910 32.2109 8.1 kn 301.4° Black Sea Sanctioned Vessel Monitoring Zone
Aug 27 17:30 31.6898 32.2132 8.0 kn 302.6° 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.