DAISY

IMO 9516545

Vessel information

Vessel Name DAISY
IMO Number 9516545
MMSI 325847000
Vessel Type Tanker
Flag 🇩🇲 Dominica
Call Sign J7DQ3
Length 101 m
Beam 19 m

Detected Events (100)

Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 17:09 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 2h 58m
  • Data Points: 8 AIS positions
  • Period: 2026-02-09T17:09:45+00:00 to 2026-02-09T20:08:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 178.400000000000005684341886080801486968994140625,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-02-09T17:09:45+00:00",
        "lat": 25.2974482999999992216544342227280139923095703125,
        "lon": 55.25025670000000133086359710432589054107666015625
    },
    "last_point": {
        "ts": "2026-02-09T20:08:08+00:00",
        "lat": 25.297038300000000532463673152960836887359619140625,
        "lon": 55.21140170000000324534994433633983135223388671875
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 16:57 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 3h 10m
  • Data Points: 9 AIS positions
  • Period: 2026-02-09T16:57:48+00:00 to 2026-02-09T20:08:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 190.30000000000001136868377216160297393798828125,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-02-09T16:57:48+00:00",
        "lat": 25.297574999999998368593878694809973239898681640625,
        "lon": 55.2502266999999989138814271427690982818603515625
    },
    "last_point": {
        "ts": "2026-02-09T20:08:08+00:00",
        "lat": 25.297038300000000532463673152960836887359619140625,
        "lon": 55.21140170000000324534994433633983135223388671875
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 14:21 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 46m
  • Data Points: 10 AIS positions
  • Period: 2026-02-09T14:21:52+00:00 to 2026-02-09T20:08:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 346.30000000000001136868377216160297393798828125,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-02-09T14:21:52+00:00",
        "lat": 25.2979883000000000947693479247391223907470703125,
        "lon": 55.25023329999999788242348586209118366241455078125
    },
    "last_point": {
        "ts": "2026-02-09T20:08:08+00:00",
        "lat": 25.297038300000000532463673152960836887359619140625,
        "lon": 55.21140170000000324534994433633983135223388671875
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 11:27 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 41m
  • Data Points: 4 AIS positions
  • Period: 2026-02-09T11:27:50+00:00 to 2026-02-09T17:09:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 341.8999999999999772626324556767940521240234375,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-02-09T11:27:50+00:00",
        "lat": 25.29796999999999940200723358429968357086181640625,
        "lon": 55.25027829999999795518306200392544269561767578125
    },
    "last_point": {
        "ts": "2026-02-09T17:09:45+00:00",
        "lat": 25.2974482999999992216544342227280139923095703125,
        "lon": 55.25025670000000133086359710432589054107666015625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 09:29 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 4h 52m
  • Data Points: 3 AIS positions
  • Period: 2026-02-09T09:29:53+00:00 to 2026-02-09T14:21:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 292,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-02-09T09:29:53+00:00",
        "lat": 25.293936699999999717647369834594428539276123046875,
        "lon": 55.237785000000002355591277591884136199951171875
    },
    "last_point": {
        "ts": "2026-02-09T14:21:52+00:00",
        "lat": 25.2979883000000000947693479247391223907470703125,
        "lon": 55.25023329999999788242348586209118366241455078125
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 08:44 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 37m
  • Data Points: 8 AIS positions
  • Period: 2026-02-09T08:44:54+00:00 to 2026-02-09T14:21:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 337,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-02-09T08:44:54+00:00",
        "lat": 25.27859169999999977562765707261860370635986328125,
        "lon": 55.25822169999999999845385900698602199554443359375
    },
    "last_point": {
        "ts": "2026-02-09T14:21:52+00:00",
        "lat": 25.2979883000000000947693479247391223907470703125,
        "lon": 55.25023329999999788242348586209118366241455078125
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 9, 2026 03:26 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 3m
  • Data Points: 7 AIS positions
  • Period: 2026-02-09T03:26:28+00:00 to 2026-02-09T09:29:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 363.3999999999999772626324556767940521240234375,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-02-09T03:26:28+00:00",
        "lat": 25.270179999999999864712663111276924610137939453125,
        "lon": 55.26129829999999998335624695755541324615478515625
    },
    "last_point": {
        "ts": "2026-02-09T09:29:53+00:00",
        "lat": 25.293936699999999717647369834594428539276123046875,
        "lon": 55.237785000000002355591277591884136199951171875
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 22:27 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 4h 58m
  • Data Points: 3 AIS positions
  • Period: 2026-02-08T22:27:37+00:00 to 2026-02-09T03:26:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 298.8999999999999772626324556767940521240234375,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-02-08T22:27:37+00:00",
        "lat": 25.27020830000000017889760783873498439788818359375,
        "lon": 55.26130830000000315749275614507496356964111328125
    },
    "last_point": {
        "ts": "2026-02-09T03:26:28+00:00",
        "lat": 25.270179999999999864712663111276924610137939453125,
        "lon": 55.26129829999999998335624695755541324615478515625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 21:14 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 11m
  • Data Points: 4 AIS positions
  • Period: 2026-02-08T21:14:41+00:00 to 2026-02-09T03:26:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 371.80000000000001136868377216160297393798828125,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-02-08T21:14:41+00:00",
        "lat": 25.270178300000001314629116677679121494293212890625,
        "lon": 55.2613132999999976391336531378328800201416015625
    },
    "last_point": {
        "ts": "2026-02-09T03:26:28+00:00",
        "lat": 25.270179999999999864712663111276924610137939453125,
        "lon": 55.26129829999999998335624695755541324615478515625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 20:20 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 2h 28m
  • Data Points: 4 AIS positions
  • Period: 2026-02-08T20:20:43+00:00 to 2026-02-08T22:49:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 148.900000000000005684341886080801486968994140625,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-02-08T20:20:43+00:00",
        "lat": 25.270193299999998970406522857956588268280029296875,
        "lon": 55.261318299999999226201907731592655181884765625
    },
    "last_point": {
        "ts": "2026-02-08T22:49:38+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 19:08 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 3h 40m
  • Data Points: 7 AIS positions
  • Period: 2026-02-08T19:08:48+00:00 to 2026-02-08T22:49:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 220.80000000000001136868377216160297393798828125,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-02-08T19:08:48+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.26130830000000315749275614507496356964111328125
    },
    "last_point": {
        "ts": "2026-02-08T22:49:38+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 18:14 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 4h 34m
  • Data Points: 10 AIS positions
  • Period: 2026-02-08T18:14:52+00:00 to 2026-02-08T22:49:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 274.80000000000001136868377216160297393798828125,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-02-08T18:14:52+00:00",
        "lat": 25.270191700000001588932718732394278049468994140625,
        "lon": 55.26128330000000232757884077727794647216796875
    },
    "last_point": {
        "ts": "2026-02-08T22:49:38+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 18:14 UTC 75.0%
  • Duration: 4h 34m
  • Radius: 4 meters
  • Data Points: 10 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4,
    "duration_minutes": 274.80000000000001136868377216160297393798828125,
    "points": 10,
    "centroid": {
        "lat": 25.270194659999997810473360004834830760955810546875,
        "lon": 55.26131313999999150610165088437497615814208984375
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26128330000000232757884077727794647216796875,
        "max_lat": 25.27021330000000176596586243249475955963134765625,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 17:13 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 35m
  • Data Points: 13 AIS positions
  • Period: 2026-02-08T17:13:58+00:00 to 2026-02-08T22:49:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 335.69999999999998863131622783839702606201171875,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-02-08T17:13:58+00:00",
        "lat": 25.270246700000001283115125261247158050537109375,
        "lon": 55.26122670000000169920895132236182689666748046875
    },
    "last_point": {
        "ts": "2026-02-08T22:49:38+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 17:13 UTC 75.0%
  • Duration: 5h 35m
  • Radius: 9 meters
  • Data Points: 13 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 335.69999999999998863131622783839702606201171875,
    "points": 13,
    "centroid": {
        "lat": 25.270200253846152094183707959018647670745849609375,
        "lon": 55.26130139230769344749205629341304302215576171875
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 16:44 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 5m
  • Data Points: 14 AIS positions
  • Period: 2026-02-08T16:44:00+00:00 to 2026-02-08T22:49:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 365.6000000000000227373675443232059478759765625,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-02-08T16:44:00+00:00",
        "lat": 25.27020329999999859182935324497520923614501953125,
        "lon": 55.261290000000002464730641804635524749755859375
    },
    "last_point": {
        "ts": "2026-02-08T22:49:38+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 16:44 UTC 75.0%
  • Duration: 6h 5m
  • Radius: 9 meters
  • Data Points: 14 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9,
    "duration_minutes": 365.6000000000000227373675443232059478759765625,
    "points": 14,
    "centroid": {
        "lat": 25.270200471428569954923659679479897022247314453125,
        "lon": 55.2613005785714221929083578288555145263671875
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 15:57 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 30m
  • Data Points: 14 AIS positions
  • Period: 2026-02-08T15:57:02+00:00 to 2026-02-08T22:27:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 390.6000000000000227373675443232059478759765625,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-02-08T15:57:02+00:00",
        "lat": 25.270205000000000694626578479073941707611083984375,
        "lon": 55.26130830000000315749275614507496356964111328125
    },
    "last_point": {
        "ts": "2026-02-08T22:27:37+00:00",
        "lat": 25.27020830000000017889760783873498439788818359375,
        "lon": 55.26130830000000315749275614507496356964111328125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 15:57 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 9 meters
  • Data Points: 14 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9,
    "duration_minutes": 390.6000000000000227373675443232059478759765625,
    "points": 14,
    "centroid": {
        "lat": 25.270200828571429241264922893606126308441162109375,
        "lon": 55.26130022142857711742180981673300266265869140625
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 14:03 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 31m
  • Data Points: 14 AIS positions
  • Period: 2026-02-08T14:42:59+00:00 to 2026-02-08T21:14:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 391.69999999999998863131622783839702606201171875,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-02-08T14:42:59+00:00",
        "lat": 25.27021500000000031604940886609256267547607421875,
        "lon": 55.26131170000000025765984901227056980133056640625
    },
    "last_point": {
        "ts": "2026-02-08T21:14:41+00:00",
        "lat": 25.270178300000001314629116677679121494293212890625,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 14:03 UTC 75.0%
  • Duration: 6h 31m
  • Radius: 9 meters
  • Data Points: 14 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 9,
    "duration_minutes": 391.69999999999998863131622783839702606201171875,
    "points": 14,
    "centroid": {
        "lat": 25.270201307142858837551102624274790287017822265625,
        "lon": 55.26130046428570352645692764781415462493896484375
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 13:29 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 25m
  • Data Points: 16 AIS positions
  • Period: 2026-02-08T13:29:56+00:00 to 2026-02-08T19:55:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 385.80000000000001136868377216160297393798828125,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-02-08T13:29:56+00:00",
        "lat": 25.270193299999998970406522857956588268280029296875,
        "lon": 55.26129670000000260188244283199310302734375
    },
    "last_point": {
        "ts": "2026-02-08T19:55:43+00:00",
        "lat": 25.270178300000001314629116677679121494293212890625,
        "lon": 55.26132830000000240033841691911220550537109375
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 13:29 UTC 75.0%
  • Duration: 6h 25m
  • Radius: 9 meters
  • Data Points: 16 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.800000000000000710542735760100185871124267578125,
    "duration_minutes": 385.80000000000001136868377216160297393798828125,
    "points": 16,
    "centroid": {
        "lat": 25.2702029187500016860212781466543674468994140625,
        "lon": 55.2612996874999993224264471791684627532958984375
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 12:05 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 32m
  • Data Points: 16 AIS positions
  • Period: 2026-02-08T12:41:54+00:00 to 2026-02-08T19:14:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-02-08T12:41:54+00:00",
        "lat": 25.2701966999999996232872945256531238555908203125,
        "lon": 55.26128330000000232757884077727794647216796875
    },
    "last_point": {
        "ts": "2026-02-08T19:14:49+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 12:05 UTC 75.0%
  • Duration: 6h 32m
  • Radius: 9 meters
  • Data Points: 16 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.5,
    "duration_minutes": 392.8999999999999772626324556767940521240234375,
    "points": 16,
    "centroid": {
        "lat": 25.270204068750000914178599487058818340301513671875,
        "lon": 55.26129687499999221245161606930196285247802734375
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 11:47 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 27m
  • Data Points: 15 AIS positions
  • Period: 2026-02-08T11:47:54+00:00 to 2026-02-08T18:14:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 387,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-02-08T11:47:54+00:00",
        "lat": 25.270188300000000936051947064697742462158203125,
        "lon": 55.26129829999999998335624695755541324615478515625
    },
    "last_point": {
        "ts": "2026-02-08T18:14:52+00:00",
        "lat": 25.270191700000001588932718732394278049468994140625,
        "lon": 55.26128330000000232757884077727794647216796875
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 11:47 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 8 meters
  • Data Points: 15 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.199999999999999289457264239899814128875732421875,
    "duration_minutes": 387,
    "points": 15,
    "centroid": {
        "lat": 25.27020178000000072415787144564092159271240234375,
        "lon": 55.261291666666664923468488268554210662841796875
    },
    "bbox": {
        "min_lat": 25.27017000000000024328983272425830364227294921875,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26132499999999936335370875895023345947265625
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 10:02 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 35m
  • Data Points: 15 AIS positions
  • Period: 2026-02-08T10:44:03+00:00 to 2026-02-08T17:19:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-02-08T10:44:03+00:00",
        "lat": 25.270206699999999244710124912671744823455810546875,
        "lon": 55.26130330000000157042450155131518840789794921875
    },
    "last_point": {
        "ts": "2026-02-08T17:19:57+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.26129329999999839628799236379563808441162109375
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 10:02 UTC 75.0%
  • Duration: 6h 35m
  • Radius: 8 meters
  • Data Points: 15 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 8.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 15,
    "centroid": {
        "lat": 25.27020200666665772359920083545148372650146484375,
        "lon": 55.26129399999999947112883091904222965240478515625
    },
    "bbox": {
        "min_lat": 25.27017000000000024328983272425830364227294921875,
        "min_lon": 55.26122670000000169920895132236182689666748046875,
        "max_lat": 25.270246700000001283115125261247158050537109375,
        "max_lon": 55.26132499999999936335370875895023345947265625
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 09:14 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 34m
  • Data Points: 20 AIS positions
  • Period: 2026-02-08T09:23:02+00:00 to 2026-02-08T15:57:02+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 394,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-02-08T09:23:02+00:00",
        "lat": 25.270233300000001008811523206532001495361328125,
        "lon": 55.26127670000000335903678205795586109161376953125
    },
    "last_point": {
        "ts": "2026-02-08T15:57:02+00:00",
        "lat": 25.270205000000000694626578479073941707611083984375,
        "lon": 55.26130830000000315749275614507496356964111328125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 09:14 UTC 75.0%
  • Duration: 6h 34m
  • Radius: 7 meters
  • Data Points: 20 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 394,
    "points": 20,
    "centroid": {
        "lat": 25.27019983999999652724000043235719203948974609375,
        "lon": 55.26128200000001555736162117682397365570068359375
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26121669999999852507244213484227657318115234375,
        "max_lat": 25.270233300000001008811523206532001495361328125,
        "max_lon": 55.26132499999999936335370875895023345947265625
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 07:06 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 25m
  • Data Points: 19 AIS positions
  • Period: 2026-02-08T07:55:59+00:00 to 2026-02-08T14:21:01+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 385,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-02-08T07:55:59+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.26130500000000012050804798491299152374267578125
    },
    "last_point": {
        "ts": "2026-02-08T14:21:01+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.26130169999999708352333982475101947784423828125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 07:06 UTC 75.0%
  • Duration: 6h 25m
  • Radius: 7 meters
  • Data Points: 19 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 6.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 385,
    "points": 19,
    "centroid": {
        "lat": 25.270199652631578857153726858086884021759033203125,
        "lon": 55.26127903684211872814557864330708980560302734375
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26121669999999852507244213484227657318115234375,
        "max_lat": 25.270233300000001008811523206532001495361328125,
        "max_lon": 55.26130500000000012050804798491299152374267578125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 06:00 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 22 AIS positions
  • Period: 2026-02-08T06:53:52+00:00 to 2026-02-08T13:29:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-02-08T06:53:52+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.26130669999999867059159441851079463958740234375
    },
    "last_point": {
        "ts": "2026-02-08T13:29:56+00:00",
        "lat": 25.270193299999998970406522857956588268280029296875,
        "lon": 55.26129670000000260188244283199310302734375
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 06:00 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 7 meters
  • Data Points: 22 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 25.270202427272725032025846303440630435943603515625,
        "lon": 55.261283031818180688787833787500858306884765625
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26121669999999852507244213484227657318115234375,
        "max_lat": 25.270233300000001008811523206532001495361328125,
        "max_lon": 55.26131670000000184472810360603034496307373046875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 05:11 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 18m
  • Data Points: 27 AIS positions
  • Period: 2026-02-08T05:53:47+00:00 to 2026-02-08T12:11:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 378.1000000000000227373675443232059478759765625,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-02-08T05:53:47+00:00",
        "lat": 25.27020830000000017889760783873498439788818359375,
        "lon": 55.26126169999999859783201827667653560638427734375
    },
    "last_point": {
        "ts": "2026-02-08T12:11:54+00:00",
        "lat": 25.27017000000000024328983272425830364227294921875,
        "lon": 55.26129499999999694637153879739344120025634765625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 05:11 UTC 75.0%
  • Duration: 6h 18m
  • Radius: 8 meters
  • Data Points: 27 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "points": 27,
    "centroid": {
        "lat": 25.27020302592593026247413945384323596954345703125,
        "lon": 55.261287474074066494722501374781131744384765625
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26121669999999852507244213484227657318115234375,
        "max_lat": 25.270233300000001008811523206532001495361328125,
        "max_lon": 55.26136170000000191748767974786460399627685546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 04:41 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 8m
  • Data Points: 29 AIS positions
  • Period: 2026-02-08T04:41:46+00:00 to 2026-02-08T10:50:01+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 368.19999999999998863131622783839702606201171875,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-02-08T04:41:46+00:00",
        "lat": 25.2701899999999994861354934982955455780029296875,
        "lon": 55.2612783000000007405105861835181713104248046875
    },
    "last_point": {
        "ts": "2026-02-08T10:50:01+00:00",
        "lat": 25.270186700000000001864464138634502887725830078125,
        "lon": 55.2612816999999978406776790507137775421142578125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 04:41 UTC 75.0%
  • Duration: 6h 8m
  • Radius: 8 meters
  • Data Points: 29 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 7.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 368.19999999999998863131622783839702606201171875,
    "points": 29,
    "centroid": {
        "lat": 25.2702039655172399079674505628645420074462890625,
        "lon": 55.26128466206896661105929524637758731842041015625
    },
    "bbox": {
        "min_lat": 25.270166700000000759018803364597260951995849609375,
        "min_lon": 55.26121669999999852507244213484227657318115234375,
        "max_lat": 25.270233300000001008811523206532001495361328125,
        "max_lon": 55.26136170000000191748767974786460399627685546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 02:17 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 26m
  • Data Points: 22 AIS positions
  • Period: 2026-02-08T02:59:48+00:00 to 2026-02-08T09:26:01+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 386.19999999999998863131622783839702606201171875,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-02-08T02:59:48+00:00",
        "lat": 25.270230000000001524540493846870958805084228515625,
        "lon": 55.26131500000000329464455717243254184722900390625
    },
    "last_point": {
        "ts": "2026-02-08T09:26:01+00:00",
        "lat": 25.270219999999998350403984659351408481597900390625,
        "lon": 55.261286699999999427745933644473552703857421875
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 02:17 UTC 75.0%
  • Duration: 6h 26m
  • Radius: 7 meters
  • Data Points: 22 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 6.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 386.19999999999998863131622783839702606201171875,
    "points": 22,
    "centroid": {
        "lat": 25.270208022727278063257472240366041660308837890625,
        "lon": 55.261295845454554864772944711148738861083984375
    },
    "bbox": {
        "min_lat": 25.27017670000000038044163375161588191986083984375,
        "min_lon": 55.2612366999999977679181029088795185089111328125,
        "max_lat": 25.270233300000001008811523206532001495361328125,
        "max_lon": 55.26136170000000191748767974786460399627685546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️? Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 02:10 UTC 55/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 471 meters
  • Average Distance: 481 meters
  • Duration: 38 minutes
  • Period: 2026-02-08T02:10:28+00:00 to 2026-02-08T02:49:24+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 471m, avg 481m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 471m, avg 481m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±13m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG • Acquired: 2026-02-07T14:23:46.444368Z • Platform: sentinel-1c

Searched: 2026-02-08T03:30:18.687062+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 471,
    "avg_distance_m": 480.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 13.300000000000000710542735760100185871124267578125,
    "duration_minutes": 38.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2336,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-02-08T02:10:28+00:00",
        "end": "2026-02-08T02:49:24+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 471m, avg 481m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b113m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 471m, avg 481m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 25.269461899999999587862475891597568988800048828125,
            "lon": 55.25905689999999736983227194286882877349853515625
        },
        "time_window": {
            "start_ts": "2026-02-08T02:10:28+00:00",
            "end_ts": "2026-02-08T02:49:24+00:00"
        },
        "searched_at": "2026-02-08T03:30:18.687062+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG",
        "scene_datetime": "2026-02-07T14:23:46.444368Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 53.7493630000000024438122636638581752777099609375,
            "min_lat": 23.825903000000000275804268312640488147735595703125,
            "max_lon": 56.564334999999999809006112627685070037841796875,
            "max_lat": 26.004971000000001168928065453656017780303955078125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_78646_thumbnail_20260208033023.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_78646_thumbnail_20260208033023.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 01:01 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 20m
  • Data Points: 23 AIS positions
  • Period: 2026-02-08T01:35:51+00:00 to 2026-02-08T07:55:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 380.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-02-08T01:35:51+00:00",
        "lat": 25.270181699999998414796209544874727725982666015625,
        "lon": 55.2613233000000008132701623253524303436279296875
    },
    "last_point": {
        "ts": "2026-02-08T07:55:59+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.26130500000000012050804798491299152374267578125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 01:01 UTC 75.0%
  • Duration: 6h 20m
  • Radius: 6 meters
  • Data Points: 23 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 6.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 380.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 25.27020463043478315512402332387864589691162109375,
        "lon": 55.261299208695646711930749006569385528564453125
    },
    "bbox": {
        "min_lat": 25.27017670000000038044163375161588191986083984375,
        "min_lon": 55.2612366999999977679181029088795185089111328125,
        "max_lat": 25.270230000000001524540493846870958805084228515625,
        "max_lon": 55.26136170000000191748767974786460399627685546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 00:13 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 35m
  • Data Points: 22 AIS positions
  • Period: 2026-02-08T00:31:51+00:00 to 2026-02-08T07:06:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 395,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-02-08T00:31:51+00:00",
        "lat": 25.270186700000000001864464138634502887725830078125,
        "lon": 55.26130669999999867059159441851079463958740234375
    },
    "last_point": {
        "ts": "2026-02-08T07:06:53+00:00",
        "lat": 25.270230000000001524540493846870958805084228515625,
        "lon": 55.26129329999999839628799236379563808441162109375
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 00:13 UTC 75.0%
  • Duration: 6h 35m
  • Radius: 6 meters
  • Data Points: 22 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 6.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 395,
    "points": 22,
    "centroid": {
        "lat": 25.2702037818181821648977347649633884429931640625,
        "lon": 55.26129962272727169647623668424785137176513671875
    },
    "bbox": {
        "min_lat": 25.27017670000000038044163375161588191986083984375,
        "min_lon": 55.2612366999999977679181029088795185089111328125,
        "max_lat": 25.270230000000001524540493846870958805084228515625,
        "max_lon": 55.26136170000000191748767974786460399627685546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️? Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 8, 2026 00:13 UTC 55/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 477 meters
  • Duration: 30 minutes
  • Period: 2026-02-08T00:13:25+00:00 to 2026-02-08T00:43:28+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 477m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 477m
Duration5/25Duration 30 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±8m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG • Acquired: 2026-02-07T14:23:46.444368Z • Platform: sentinel-1c

Searched: 2026-02-08T01:30:02.186975+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 468.30000000000001136868377216160297393798828125,
    "avg_distance_m": 477.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 7.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 30.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 1803,
    "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": "2026-02-08T00:13:25+00:00",
        "end": "2026-02-08T00:43:28+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 477m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 30 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 477m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 25.269448700000001650778358452953398227691650390625,
            "lon": 55.2591010000000011359588825143873691558837890625
        },
        "time_window": {
            "start_ts": "2026-02-08T00:13:25+00:00",
            "end_ts": "2026-02-08T00:43:28+00:00"
        },
        "searched_at": "2026-02-08T01:30:02.186975+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG",
        "scene_datetime": "2026-02-07T14:23:46.444368Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 53.7493630000000024438122636638581752777099609375,
            "min_lat": 23.825903000000000275804268312640488147735595703125,
            "max_lon": 56.564334999999999809006112627685070037841796875,
            "max_lat": 26.004971000000001168928065453656017780303955078125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_78276_thumbnail_20260208013007.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_78276_thumbnail_20260208013007.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 23:12 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 29m
  • Data Points: 20 AIS positions
  • Period: 2026-02-07T23:49:51+00:00 to 2026-02-08T06:18:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 389,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-02-07T23:49:51+00:00",
        "lat": 25.270198300000000557474777451716363430023193359375,
        "lon": 55.26131670000000184472810360603034496307373046875
    },
    "last_point": {
        "ts": "2026-02-08T06:18:50+00:00",
        "lat": 25.270201700000001210355549119412899017333984375,
        "lon": 55.2612783000000007405105861835181713104248046875
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 23:12 UTC 75.0%
  • Duration: 6h 29m
  • Radius: 6 meters
  • Data Points: 20 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 6.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 389,
    "points": 20,
    "centroid": {
        "lat": 25.27020215499999977737388690002262592315673828125,
        "lon": 55.26129966999999254539943649433553218841552734375
    },
    "bbox": {
        "min_lat": 25.270181699999998414796209544874727725982666015625,
        "min_lon": 55.2612366999999977679181029088795185089111328125,
        "max_lat": 25.270230000000001524540493846870958805084228515625,
        "max_lon": 55.261331699999999500505509786307811737060546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 21:09 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 49m
  • Data Points: 16 AIS positions
  • Period: 2026-02-07T21:09:58+00:00 to 2026-02-08T02:59:48+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 349.80000000000001136868377216160297393798828125,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-02-07T21:09:58+00:00",
        "lat": 25.27019500000000107320374809205532073974609375,
        "lon": 55.2613132999999976391336531378328800201416015625
    },
    "last_point": {
        "ts": "2026-02-08T02:59:48+00:00",
        "lat": 25.270230000000001524540493846870958805084228515625,
        "lon": 55.26131500000000329464455717243254184722900390625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 21:09 UTC 75.0%
  • Duration: 5h 49m
  • Radius: 3 meters
  • Data Points: 16 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 3,
    "duration_minutes": 349.80000000000001136868377216160297393798828125,
    "points": 16,
    "centroid": {
        "lat": 25.270202600000001069702193490229547023773193359375,
        "lon": 55.26131301874999479650796274654567241668701171875
    },
    "bbox": {
        "min_lat": 25.270181699999998414796209544874727725982666015625,
        "min_lon": 55.2612917000000010148141882382333278656005859375,
        "max_lat": 25.270230000000001524540493846870958805084228515625,
        "max_lon": 55.261331699999999500505509786307811737060546875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️? Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 20:40 UTC 52/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 455 meters
  • Average Distance: 469 meters
  • Duration: 36 minutes
  • Period: 2026-02-07T20:40:26+00:00 to 2026-02-07T21:16:28+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 52/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 455m, avg 469m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 455m, avg 469m
Duration5/25Duration 36 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±8m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG • Acquired: 2026-02-07T14:23:46.444368Z • Platform: sentinel-1c

Searched: 2026-02-07T21:45:04.344670+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 455.30000000000001136868377216160297393798828125,
    "avg_distance_m": 469,
    "distance_consistency_m": 7.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 36,
    "overlap_duration_s": 2162,
    "speed_a_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_a_std": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-02-07T20:40:26+00:00",
        "end": "2026-02-07T21:16:28+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 52,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 455m, avg 469m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 455m, avg 469m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 25.26950310000000143872966873459517955780029296875,
            "lon": 55.2591421999999994341123965568840503692626953125
        },
        "time_window": {
            "start_ts": "2026-02-07T20:40:26+00:00",
            "end_ts": "2026-02-07T21:16:28+00:00"
        },
        "searched_at": "2026-02-07T21:45:04.344670+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG",
        "scene_datetime": "2026-02-07T14:23:46.444368Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 53.7493630000000024438122636638581752777099609375,
            "min_lat": 23.825903000000000275804268312640488147735595703125,
            "max_lon": 56.564334999999999809006112627685070037841796875,
            "max_lat": 26.004971000000001168928065453656017780303955078125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_77588_thumbnail_20260207214510.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_77588_thumbnail_20260207214510.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 20:04 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 19m
  • Data Points: 19 AIS positions
  • Period: 2026-02-07T20:40:00+00:00 to 2026-02-08T02:59:48+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 379.80000000000001136868377216160297393798828125,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-02-07T20:40:00+00:00",
        "lat": 25.270226699999998487555785686708986759185791015625,
        "lon": 55.2613367000000010875737643800675868988037109375
    },
    "last_point": {
        "ts": "2026-02-08T02:59:48+00:00",
        "lat": 25.270230000000001524540493846870958805084228515625,
        "lon": 55.26131500000000329464455717243254184722900390625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 20:04 UTC 75.0%
  • Duration: 6h 19m
  • Radius: 4 meters
  • Data Points: 19 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 3.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 379.80000000000001136868377216160297393798828125,
    "points": 19,
    "centroid": {
        "lat": 25.270205263157894393089009099639952182769775390625,
        "lon": 55.2613165789473583799917832948267459869384765625
    },
    "bbox": {
        "min_lat": 25.270181699999998414796209544874727725982666015625,
        "min_lon": 55.2612917000000010148141882382333278656005859375,
        "max_lat": 25.270230000000001524540493846870958805084228515625,
        "max_lon": 55.26134669999999715628291596658527851104736328125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 18:03 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 34m
  • Data Points: 19 AIS positions
  • Period: 2026-02-07T18:03:10+00:00 to 2026-02-08T00:37:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 394.6000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-02-07T18:03:10+00:00",
        "lat": 25.27024829999999866458892938680946826934814453125,
        "lon": 55.26132499999999936335370875895023345947265625
    },
    "last_point": {
        "ts": "2026-02-08T00:37:49+00:00",
        "lat": 25.27020830000000017889760783873498439788818359375,
        "lon": 55.2613132999999976391336531378328800201416015625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 18:03 UTC 75.0%
  • Duration: 6h 34m
  • Radius: 5 meters
  • Data Points: 19 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5,
    "duration_minutes": 394.6000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 25.270209210526321186307541211135685443878173828125,
        "lon": 55.26131342631578746704690274782478809356689453125
    },
    "bbox": {
        "min_lat": 25.270186700000000001864464138634502887725830078125,
        "min_lon": 55.2612850000000008776623872108757495880126953125,
        "max_lat": 25.27024829999999866458892938680946826934814453125,
        "max_lon": 55.26134669999999715628291596658527851104736328125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️? Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 18:01 UTC 55/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 471 meters
  • Average Distance: 477 meters
  • Duration: 33 minutes
  • Period: 2026-02-07T18:01:26+00:00 to 2026-02-07T18:34:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 471m, avg 477m) for 33 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 471m, avg 477m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG • Acquired: 2026-02-07T14:23:46.444368Z • Platform: sentinel-1c

Searched: 2026-02-08T01:00:01.389017+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 471.30000000000001136868377216160297393798828125,
    "avg_distance_m": 477.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 6,
    "duration_minutes": 33,
    "overlap_duration_s": 1980,
    "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": "2026-02-07T18:01:26+00:00",
        "end": "2026-02-07T18:34:26+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 471m, avg 477m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 471m, avg 477m) for 33 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 25.269534900000000021691448637284338474273681640625,
            "lon": 55.2590641999999974132151692174375057220458984375
        },
        "time_window": {
            "start_ts": "2026-02-07T18:01:26+00:00",
            "end_ts": "2026-02-07T18:34:26+00:00"
        },
        "searched_at": "2026-02-08T01:00:01.389017+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG",
        "scene_datetime": "2026-02-07T14:23:46.444368Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 53.7493630000000024438122636638581752777099609375,
            "min_lat": 23.825903000000000275804268312640488147735595703125,
            "max_lon": 56.564334999999999809006112627685070037841796875,
            "max_lat": 26.004971000000001168928065453656017780303955078125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_78146_thumbnail_20260208010005.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_78146_thumbnail_20260208010005.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 17:07 UTC 65/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 474 meters
  • Duration: 1h 27m
  • Period: 2026-02-07T17:07:25+00:00 to 2026-02-07T18:34:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 474m) for 87 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 474m
Duration15/25Duration 87 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG • Acquired: 2026-02-07T14:23:46.444368Z • Platform: sentinel-1c

Searched: 2026-02-07T23:45:01.754416+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 468,
    "avg_distance_m": 474.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 87,
    "overlap_duration_s": 5221,
    "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": "2026-02-07T17:07:25+00:00",
        "end": "2026-02-07T18:34:26+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 474m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 87 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: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 474m) for 87 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 25.26952299999999951296558720059692859649658203125,
            "lon": 55.25906859999999909405232756398618221282958984375
        },
        "time_window": {
            "start_ts": "2026-02-07T17:07:25+00:00",
            "end_ts": "2026-02-07T18:34:26+00:00"
        },
        "searched_at": "2026-02-07T23:45:01.754416+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG",
        "scene_datetime": "2026-02-07T14:23:46.444368Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 53.7493630000000024438122636638581752777099609375,
            "min_lat": 23.825903000000000275804268312640488147735595703125,
            "max_lon": 56.564334999999999809006112627685070037841796875,
            "max_lat": 26.004971000000001168928065453656017780303955078125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_77911_thumbnail_20260207234506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_77911_thumbnail_20260207234506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 17:05 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 28m
  • Data Points: 19 AIS positions
  • Period: 2026-02-07T17:57:13+00:00 to 2026-02-08T00:25:51+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 388.6000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-02-07T17:57:13+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.2613132999999976391336531378328800201416015625
    },
    "last_point": {
        "ts": "2026-02-08T00:25:51+00:00",
        "lat": 25.270218299999999800320438225753605365753173828125,
        "lon": 55.26131670000000184472810360603034496307373046875
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 17:05 UTC 75.0%
  • Duration: 6h 28m
  • Radius: 4 meters
  • Data Points: 19 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 388.6000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 25.270212810526317070980439893901348114013671875,
        "lon": 55.2613140368421085213412879966199398040771484375
    },
    "bbox": {
        "min_lat": 25.270188300000000936051947064697742462158203125,
        "min_lon": 55.2612850000000008776623872108757495880126953125,
        "max_lat": 25.270251699999999317469701054506003856658935546875,
        "max_lon": 55.26134669999999715628291596658527851104736328125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️? Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 16:25 UTC 75/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 463 meters
  • Average Distance: 473 meters
  • Duration: 2h 9m
  • Period: 2026-02-07T16:25:27+00:00 to 2026-02-07T18:34:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 463m, avg 473m) for 129 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 463m, avg 473m
Duration25/25Duration 129 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG • Acquired: 2026-02-07T14:23:46.444368Z • Platform: sentinel-1c

Searched: 2026-02-07T23:30:21.142666+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 463,
    "avg_distance_m": 472.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 6.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 129,
    "overlap_duration_s": 7739,
    "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": "2026-02-07T16:25:27+00:00",
        "end": "2026-02-07T18:34:26+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 463m, avg 473m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 463m, avg 473m) for 129 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 25.26952440000000166264726431109011173248291015625,
            "lon": 55.25907629999999670644683646969497203826904296875
        },
        "time_window": {
            "start_ts": "2026-02-07T16:25:27+00:00",
            "end_ts": "2026-02-07T18:34:26+00:00"
        },
        "searched_at": "2026-02-07T23:30:21.142666+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260207T142346_20260207T142415_006251_00C8E0_8DC0_COG",
        "scene_datetime": "2026-02-07T14:23:46.444368Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 53.7493630000000024438122636638581752777099609375,
            "min_lat": 23.825903000000000275804268312640488147735595703125,
            "max_lon": 56.564334999999999809006112627685070037841796875,
            "max_lat": 26.004971000000001168928065453656017780303955078125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_77897_thumbnail_20260207233025.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/02\/event_77897_thumbnail_20260207233025.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 16:05 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 16m
  • Data Points: 24 AIS positions
  • Period: 2026-02-07T16:05:16+00:00 to 2026-02-07T21:21:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 316.69999999999998863131622783839702606201171875,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-02-07T16:05:16+00:00",
        "lat": 25.270179999999999864712663111276924610137939453125,
        "lon": 55.2613132999999976391336531378328800201416015625
    },
    "last_point": {
        "ts": "2026-02-07T21:21:59+00:00",
        "lat": 25.270198300000000557474777451716363430023193359375,
        "lon": 55.26130500000000012050804798491299152374267578125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 16:05 UTC 75.0%
  • Duration: 5h 16m
  • Radius: 6 meters
  • Data Points: 24 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 5.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 316.69999999999998863131622783839702606201171875,
    "points": 24,
    "centroid": {
        "lat": 25.270209316666665699813165701925754547119140625,
        "lon": 55.2613099333333366303122602403163909912109375
    },
    "bbox": {
        "min_lat": 25.27016830000000169320628629066050052642822265625,
        "min_lon": 55.261251700000002529122866690158843994140625,
        "max_lat": 25.270251699999999317469701054506003856658935546875,
        "max_lon": 55.26134669999999715628291596658527851104736328125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 15:52 UTC 75/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 463 meters
  • Average Distance: 473 meters
  • Duration: 2h 42m
  • Period: 2026-02-07T15:52:28+00:00 to 2026-02-07T18:34:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 463m, avg 473m) for 162 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 463m, avg 473m
Duration25/25Duration 162 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 463,
    "avg_distance_m": 473.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 6.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 162,
    "overlap_duration_s": 9718,
    "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": "2026-02-07T15:52:28+00:00",
        "end": "2026-02-07T18:34:26+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 463m, avg 473m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 162 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: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 463m, avg 473m) for 162 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 15:03 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 18m
  • Data Points: 31 AIS positions
  • Period: 2026-02-07T15:03:17+00:00 to 2026-02-07T21:21:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 378.69999999999998863131622783839702606201171875,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-02-07T15:03:17+00:00",
        "lat": 25.270226699999998487555785686708986759185791015625,
        "lon": 55.26129829999999998335624695755541324615478515625
    },
    "last_point": {
        "ts": "2026-02-07T21:21:59+00:00",
        "lat": 25.270198300000000557474777451716363430023193359375,
        "lon": 55.26130500000000012050804798491299152374267578125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 15:03 UTC 75.0%
  • Duration: 6h 18m
  • Radius: 6 meters
  • Data Points: 31 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 378.69999999999998863131622783839702606201171875,
    "points": 31,
    "centroid": {
        "lat": 25.27021178709677684537382447160780429840087890625,
        "lon": 55.26130892580643916289773187600076198577880859375
    },
    "bbox": {
        "min_lat": 25.27016830000000169320628629066050052642822265625,
        "min_lon": 55.261251700000002529122866690158843994140625,
        "max_lat": 25.270256700000000904537955648265779018402099609375,
        "max_lon": 55.26134669999999715628291596658527851104736328125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 13:15 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 13m
  • Data Points: 25 AIS positions
  • Period: 2026-02-07T13:15:14+00:00 to 2026-02-07T18:29:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 313.8999999999999772626324556767940521240234375,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-02-07T13:15:14+00:00",
        "lat": 25.270206699999999244710124912671744823455810546875,
        "lon": 55.26134830000000164318407769314944744110107421875
    },
    "last_point": {
        "ts": "2026-02-07T18:29:11+00:00",
        "lat": 25.270244999999999180317900027148425579071044921875,
        "lon": 55.2613233000000008132701623253524303436279296875
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 13:15 UTC 75.0%
  • Duration: 5h 13m
  • Radius: 6 meters
  • Data Points: 25 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 313.8999999999999772626324556767940521240234375,
    "points": 25,
    "centroid": {
        "lat": 25.270212748000002278558895341120660305023193359375,
        "lon": 55.26130679999999983920133672654628753662109375
    },
    "bbox": {
        "min_lat": 25.27016830000000169320628629066050052642822265625,
        "min_lon": 55.261251700000002529122866690158843994140625,
        "max_lat": 25.270256700000000904537955648265779018402099609375,
        "max_lon": 55.26134830000000164318407769314944744110107421875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 09:30 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 38m
  • Data Points: 12 AIS positions
  • Period: 2026-02-07T09:30:22+00:00 to 2026-02-07T16:09:18+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 398.8999999999999772626324556767940521240234375,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-02-07T09:30:22+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.26126169999999859783201827667653560638427734375
    },
    "last_point": {
        "ts": "2026-02-07T16:09:18+00:00",
        "lat": 25.27016830000000169320628629066050052642822265625,
        "lon": 55.26132170000000343179635819979012012481689453125
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 09:30 UTC 75.0%
  • Duration: 6h 38m
  • Radius: 5 meters
  • Data Points: 12 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 398.8999999999999772626324556767940521240234375,
    "points": 12,
    "centroid": {
        "lat": 25.270212508333333545351706561632454395294189453125,
        "lon": 55.26130569166667783065349794924259185791015625
    },
    "bbox": {
        "min_lat": 25.27016830000000169320628629066050052642822265625,
        "min_lon": 55.26126169999999859783201827667653560638427734375,
        "max_lat": 25.270256700000000904537955648265779018402099609375,
        "max_lon": 55.26134830000000164318407769314944744110107421875
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 07:16 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 58m
  • Data Points: 6 AIS positions
  • Period: 2026-02-07T07:16:20+00:00 to 2026-02-07T13:15:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 358.8999999999999772626324556767940521240234375,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-02-07T07:16:20+00:00",
        "lat": 25.270201700000001210355549119412899017333984375,
        "lon": 55.2612816999999978406776790507137775421142578125
    },
    "last_point": {
        "ts": "2026-02-07T13:15:14+00:00",
        "lat": 25.270206699999999244710124912671744823455810546875,
        "lon": 55.26134830000000164318407769314944744110107421875
    }
}
Methodology: 2026.01.18
Sts Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 07:07 UTC 60/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 466 meters
  • Average Distance: 474 meters
  • Duration: 54 minutes
  • Period: 2026-02-07T07:07:27+00:00 to 2026-02-07T08:01:26+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 466m, avg 474m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 466m, avg 474m
Duration10/25Duration 54 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 466.30000000000001136868377216160297393798828125,
    "avg_distance_m": 474.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 5.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 54,
    "overlap_duration_s": 3239,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-02-07T07:07:27+00:00",
        "end": "2026-02-07T08:01:26+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 466m, avg 474m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 466m, avg 474m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 06:22 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 17m
  • Data Points: 7 AIS positions
  • Period: 2026-02-07T06:57:22+00:00 to 2026-02-07T13:15:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 377.8999999999999772626324556767940521240234375,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-02-07T06:57:22+00:00",
        "lat": 25.270198300000000557474777451716363430023193359375,
        "lon": 55.261286699999999427745933644473552703857421875
    },
    "last_point": {
        "ts": "2026-02-07T13:15:14+00:00",
        "lat": 25.270206699999999244710124912671744823455810546875,
        "lon": 55.26134830000000164318407769314944744110107421875
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 04:00 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 48m
  • Data Points: 8 AIS positions
  • Period: 2026-02-07T04:00:22+00:00 to 2026-02-07T09:48:20+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 348,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-02-07T04:00:22+00:00",
        "lat": 25.27020329999999859182935324497520923614501953125,
        "lon": 55.26133999999999701913111493922770023345947265625
    },
    "last_point": {
        "ts": "2026-02-07T09:48:20+00:00",
        "lat": 25.27024000000000114596332423388957977294921875,
        "lon": 55.2612850000000008776623872108757495880126953125
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 03:36 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 11m
  • Data Points: 9 AIS positions
  • Period: 2026-02-07T03:36:24+00:00 to 2026-02-07T09:48:20+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 371.8999999999999772626324556767940521240234375,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-02-07T03:36:24+00:00",
        "lat": 25.270205000000000694626578479073941707611083984375,
        "lon": 55.26132830000000240033841691911220550537109375
    },
    "last_point": {
        "ts": "2026-02-07T09:48:20+00:00",
        "lat": 25.27024000000000114596332423388957977294921875,
        "lon": 55.2612850000000008776623872108757495880126953125
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 02:00 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 53m
  • Data Points: 9 AIS positions
  • Period: 2026-02-07T02:00:28+00:00 to 2026-02-07T07:54:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 353.8999999999999772626324556767940521240234375,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-02-07T02:00:28+00:00",
        "lat": 25.27020830000000017889760783873498439788818359375,
        "lon": 55.26134669999999715628291596658527851104736328125
    },
    "last_point": {
        "ts": "2026-02-07T07:54:23+00:00",
        "lat": 25.270223300000001387388692819513380527496337890625,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 01:53 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6 hours
  • Data Points: 10 AIS positions
  • Period: 2026-02-07T01:53:30+00:00 to 2026-02-07T07:54:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 360.8999999999999772626324556767940521240234375,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-02-07T01:53:30+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.26131170000000025765984901227056980133056640625
    },
    "last_point": {
        "ts": "2026-02-07T07:54:23+00:00",
        "lat": 25.270223300000001387388692819513380527496337890625,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 7, 2026 01:53 UTC 75.0%
  • Duration: 6 hours
  • Radius: 5 meters
  • Data Points: 10 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5,
    "duration_minutes": 360.8999999999999772626324556767940521240234375,
    "points": 10,
    "centroid": {
        "lat": 25.27020599000000089517925516702234745025634765625,
        "lon": 55.26131184999999135243342607282102108001708984375
    },
    "bbox": {
        "min_lat": 25.270198300000000557474777451716363430023193359375,
        "min_lon": 55.26127000000000322188498103059828281402587890625,
        "max_lat": 25.270223300000001387388692819513380527496337890625,
        "max_lon": 55.26134669999999715628291596658527851104736328125
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 22:30 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 29m
  • Data Points: 7 AIS positions
  • Period: 2026-02-06T22:30:45+00:00 to 2026-02-07T04:00:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 329.6000000000000227373675443232059478759765625,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-02-06T22:30:45+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.2613233000000008132701623253524303436279296875
    },
    "last_point": {
        "ts": "2026-02-07T04:00:22+00:00",
        "lat": 25.27020329999999859182935324497520923614501953125,
        "lon": 55.26133999999999701913111493922770023345947265625
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 21:13 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 22m
  • Data Points: 7 AIS positions
  • Period: 2026-02-06T21:13:46+00:00 to 2026-02-07T03:36:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 382.6000000000000227373675443232059478759765625,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-02-06T21:13:46+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.26131170000000025765984901227056980133056640625
    },
    "last_point": {
        "ts": "2026-02-07T03:36:24+00:00",
        "lat": 25.270205000000000694626578479073941707611083984375,
        "lon": 55.26132830000000240033841691911220550537109375
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 19:09 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 14m
  • Data Points: 7 AIS positions
  • Period: 2026-02-06T19:51:55+00:00 to 2026-02-07T02:06:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 374.6000000000000227373675443232059478759765625,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-02-06T19:51:55+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.2613199999999977762854541651904582977294921875
    },
    "last_point": {
        "ts": "2026-02-07T02:06:28+00:00",
        "lat": 25.270198300000000557474777451716363430023193359375,
        "lon": 55.261331699999999500505509786307811737060546875
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 19:04 UTC 60/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 475 meters
  • Duration: 45 minutes
  • Period: 2026-02-06T19:04:27+00:00 to 2026-02-06T19:49:24+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 475m) for 45 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 475m
Duration10/25Duration 45 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-07T01:30:07.024086+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 467.80000000000001136868377216160297393798828125,
    "avg_distance_m": 475.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 45,
    "overlap_duration_s": 2697,
    "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": "2026-02-06T19:04:27+00:00",
        "end": "2026-02-06T19:49:24+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 475m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 45 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: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 475m) for 45 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 25.26949450000000041427483665756881237030029296875,
            "lon": 55.25909229999999894289430812932550907135009765625
        },
        "time_window": {
            "start_ts": "2026-02-06T19:04:27+00:00",
            "end_ts": "2026-02-06T19:49:24+00:00"
        },
        "searched_at": "2026-02-07T01:30:07.024086+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 18:34 UTC 65/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 477 meters
  • Duration: 1h 15m
  • Period: 2026-02-06T18:34:26+00:00 to 2026-02-06T19:49:24+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 477m) for 75 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 477m
Duration15/25Duration 75 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 467.80000000000001136868377216160297393798828125,
    "avg_distance_m": 477,
    "distance_consistency_m": 6.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 75,
    "overlap_duration_s": 4498,
    "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": "2026-02-06T18:34:26+00:00",
        "end": "2026-02-06T19:49:24+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 477m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 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: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 477m) for 75 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 18:04 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 4h 44m
  • Data Points: 10 AIS positions
  • Period: 2026-02-06T18:04:06+00:00 to 2026-02-06T22:48:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 284.6000000000000227373675443232059478759765625,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-02-06T18:04:06+00:00",
        "lat": 25.270243300000000630234353593550622463226318359375,
        "lon": 55.26131670000000184472810360603034496307373046875
    },
    "last_point": {
        "ts": "2026-02-06T22:48:40+00:00",
        "lat": 25.27020329999999859182935324497520923614501953125,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 18:04 UTC 75.0%
  • Duration: 4h 44m
  • Radius: 4 meters
  • Data Points: 10 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4,
    "duration_minutes": 284.6000000000000227373675443232059478759765625,
    "points": 10,
    "centroid": {
        "lat": 25.2702143300000017234197002835571765899658203125,
        "lon": 55.2613178300000100762190413661301136016845703125
    },
    "bbox": {
        "min_lat": 25.270191700000001588932718732394278049468994140625,
        "min_lon": 55.26128829999999680921973777003586292266845703125,
        "max_lat": 25.270243300000000630234353593550622463226318359375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️✗ Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 17:49 UTC 55/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 470 meters
  • Average Distance: 478 meters
  • Duration: 33 minutes
  • Period: 2026-02-06T17:49:28+00:00 to 2026-02-06T18:22:27+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 470m, avg 478m) for 33 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 470m, avg 478m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-06T19:30:07.427372+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 470.30000000000001136868377216160297393798828125,
    "avg_distance_m": 477.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 33,
    "overlap_duration_s": 1979,
    "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": "2026-02-06T17:49:28+00:00",
        "end": "2026-02-06T18:22:27+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 470m, avg 478m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 470m, avg 478m) for 33 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 25.269489799999998780322130187414586544036865234375,
            "lon": 55.2590627000000012003511073999106884002685546875
        },
        "time_window": {
            "start_ts": "2026-02-06T17:49:28+00:00",
            "end_ts": "2026-02-06T18:22:27+00:00"
        },
        "searched_at": "2026-02-06T19:30:07.427372+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 17:45 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 5h 3m
  • Data Points: 11 AIS positions
  • Period: 2026-02-06T17:45:06+00:00 to 2026-02-06T22:48:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 303.6000000000000227373675443232059478759765625,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-02-06T17:45:06+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.261290000000002464730641804635524749755859375
    },
    "last_point": {
        "ts": "2026-02-06T22:48:40+00:00",
        "lat": 25.27020329999999859182935324497520923614501953125,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 17:45 UTC 75.0%
  • Duration: 5h 3m
  • Radius: 4 meters
  • Data Points: 11 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 303.6000000000000227373675443232059478759765625,
    "points": 11,
    "centroid": {
        "lat": 25.270214090909089321712599485181272029876708984375,
        "lon": 55.26131529999999969504642649553716182708740234375
    },
    "bbox": {
        "min_lat": 25.270191700000001588932718732394278049468994140625,
        "min_lon": 55.26128829999999680921973777003586292266845703125,
        "max_lat": 25.270243300000000630234353593550622463226318359375,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 15:03 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 10m
  • Data Points: 14 AIS positions
  • Period: 2026-02-06T15:03:19+00:00 to 2026-02-06T21:13:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 370.3999999999999772626324556767940521240234375,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-02-06T15:03:19+00:00",
        "lat": 25.27021330000000176596586243249475955963134765625,
        "lon": 55.26133829999999846904756850562989711761474609375
    },
    "last_point": {
        "ts": "2026-02-06T21:13:46+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 15:03 UTC 75.0%
  • Duration: 6h 10m
  • Radius: 5 meters
  • Data Points: 14 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 370.3999999999999772626324556767940521240234375,
    "points": 14,
    "centroid": {
        "lat": 25.27021821428571257683870499022305011749267578125,
        "lon": 55.261311299999988477793522179126739501953125
    },
    "bbox": {
        "min_lat": 25.270188300000000936051947064697742462158203125,
        "min_lon": 55.26128829999999680921973777003586292266845703125,
        "max_lat": 25.27025499999999880174073041416704654693603515625,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️✗ Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 15:01 UTC 55/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 473 meters
  • Average Distance: 477 meters
  • Duration: 36 minutes
  • Period: 2026-02-06T15:01:28+00:00 to 2026-02-06T15:37:25+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 473m, avg 477m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 473m, avg 477m
Duration5/25Duration 36 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-06T21:45:01.975280+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 473.1000000000000227373675443232059478759765625,
    "avg_distance_m": 476.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 36,
    "overlap_duration_s": 2157,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-02-06T15:01:28+00:00",
        "end": "2026-02-06T15:37:25+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 473m, avg 477m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 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: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 473m, avg 477m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 25.269474599999998787325239391066133975982666015625,
            "lon": 55.25908079999999955589373712427914142608642578125
        },
        "time_window": {
            "start_ts": "2026-02-06T15:01:28+00:00",
            "end_ts": "2026-02-06T15:37:25+00:00"
        },
        "searched_at": "2026-02-06T21:45:01.975280+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 14:12 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 28m
  • Data Points: 16 AIS positions
  • Period: 2026-02-06T14:45:17+00:00 to 2026-02-06T21:13:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 388.5,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-02-06T14:45:17+00:00",
        "lat": 25.2702416999999996960468706674873828887939453125,
        "lon": 55.26128829999999680921973777003586292266845703125
    },
    "last_point": {
        "ts": "2026-02-06T21:13:46+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.26131170000000025765984901227056980133056640625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 14:12 UTC 75.0%
  • Duration: 6h 28m
  • Radius: 5 meters
  • Data Points: 16 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5,
    "duration_minutes": 388.5,
    "points": 16,
    "centroid": {
        "lat": 25.2702197937500017133061191998422145843505859375,
        "lon": 55.2613106124999973189915181137621402740478515625
    },
    "bbox": {
        "min_lat": 25.270188300000000936051947064697742462158203125,
        "min_lon": 55.26128829999999680921973777003586292266845703125,
        "max_lat": 25.27025499999999880174073041416704654693603515625,
        "max_lon": 55.26133829999999846904756850562989711761474609375
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️✗ Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 14:07 UTC 70/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 474 meters
  • Duration: 1h 30m
  • Period: 2026-02-06T14:07:25+00:00 to 2026-02-06T15:37:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 474m) 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 474m
Duration20/25Duration 90 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-06T20:45:01.712425+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 468.30000000000001136868377216160297393798828125,
    "avg_distance_m": 474.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 5.5,
    "duration_minutes": 90,
    "overlap_duration_s": 5400,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-02-06T14:07:25+00:00",
        "end": "2026-02-06T15:37:25+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 474m"
            },
            "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 \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 474m) 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 25.26948519999999831497916602529585361480712890625,
            "lon": 55.2590907000000015614205040037631988525390625
        },
        "time_window": {
            "start_ts": "2026-02-06T14:07:25+00:00",
            "end_ts": "2026-02-06T15:37:25+00:00"
        },
        "searched_at": "2026-02-06T20:45:01.712425+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 13:46 UTC 70/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 476 meters
  • Duration: 1h 51m
  • Period: 2026-02-06T13:46:25+00:00 to 2026-02-06T15:37:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 476m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 476m
Duration20/25Duration 111 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 468.30000000000001136868377216160297393798828125,
    "avg_distance_m": 475.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 111,
    "overlap_duration_s": 6660,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-02-06T13:46:25+00:00",
        "end": "2026-02-06T15:37:25+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 476m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 111 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 476m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 13:00 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 27m
  • Data Points: 21 AIS positions
  • Period: 2026-02-06T13:24:21+00:00 to 2026-02-06T19:51:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 387.6000000000000227373675443232059478759765625,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-02-06T13:24:21+00:00",
        "lat": 25.270205000000000694626578479073941707611083984375,
        "lon": 55.26131500000000329464455717243254184722900390625
    },
    "last_point": {
        "ts": "2026-02-06T19:51:55+00:00",
        "lat": 25.270211700000000831778379506431519985198974609375,
        "lon": 55.2613199999999977762854541651904582977294921875
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 13:00 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 21 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 387.6000000000000227373675443232059478759765625,
    "points": 21,
    "centroid": {
        "lat": 25.2702204714285727504829992540180683135986328125,
        "lon": 55.261314904761917432551854290068149566650390625
    },
    "bbox": {
        "min_lat": 25.270188300000000936051947064697742462158203125,
        "min_lon": 55.26128829999999680921973777003586292266845703125,
        "max_lat": 25.27025499999999880174073041416704654693603515625,
        "max_lon": 55.261363299999999298961483873426914215087890625
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18
Sts🛰️✗ Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 12:40 UTC 55/100
Vessel A: IMO 9411575 (LADY YASSO) Panama
Vessel B: IMO 9516545 (DAISY) Dominica
  • Minimum Distance: 468 meters
  • Average Distance: 472 meters
  • Duration: 42 minutes
  • Period: 2026-02-06T12:40:27+00:00 to 2026-02-06T13:22:24+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 472m) for 42 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 468m, avg 472m
Duration5/25Duration 42 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-02-06T14:30:09.469930+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001465,
        "imo": 9411575,
        "name": "LADY YASSO",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 325847000,
        "imo": 9516545,
        "name": "DAISY",
        "flag": "Dominica"
    },
    "min_distance_m": 468.30000000000001136868377216160297393798828125,
    "avg_distance_m": 472.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 42,
    "overlap_duration_s": 2517,
    "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": "2026-02-06T12:40:27+00:00",
        "end": "2026-02-06T13:22:24+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 468m, avg 472m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 42 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (LADY YASSO and DAISY) maintained close proximity (min 468m, avg 472m) for 42 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 Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 25.269496700000001254693415830843150615692138671875,
            "lon": 55.2591254000000020596417016349732875823974609375
        },
        "time_window": {
            "start_ts": "2026-02-06T12:40:27+00:00",
            "end_ts": "2026-02-06T13:22:24+00:00"
        },
        "searched_at": "2026-02-06T14:30:09.469930+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 12:21 UTC 80.0%
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 6h 21m
  • Data Points: 24 AIS positions
  • Period: 2026-02-06T12:48:21+00:00 to 2026-02-06T19:09:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 381.6000000000000227373675443232059478759765625,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-02-06T12:48:21+00:00",
        "lat": 25.270201700000001210355549119412899017333984375,
        "lon": 55.2613367000000010875737643800675868988037109375
    },
    "last_point": {
        "ts": "2026-02-06T19:09:59+00:00",
        "lat": 25.270199999999999107558323885314166545867919921875,
        "lon": 55.261318299999999226201907731592655181884765625
    }
}
Methodology: 2026.01.18
Loiter Gulf of Oman Sanctioned Vessel Monitoring Zone
Feb 6, 2026 12:21 UTC 75.0%
  • Duration: 6h 21m
  • Radius: 5 meters
  • Data Points: 24 AIS positions
  • Centroid: 25.2702, 55.2613
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 5,
    "duration_minutes": 381.6000000000000227373675443232059478759765625,
    "points": 24,
    "centroid": {
        "lat": 25.270220550000004777757567353546619415283203125,
        "lon": 55.26132019583332777301620808430016040802001953125
    },
    "bbox": {
        "min_lat": 25.270188300000000936051947064697742462158203125,
        "min_lon": 55.26128829999999680921973777003586292266845703125,
        "max_lat": 25.27025499999999880174073041416704654693603515625,
        "max_lon": 55.261363299999999298961483873426914215087890625
    },
    "zone_id": "discovered_030"
}
Methodology: 2026.01.18

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.