HISTRIA AZURE

IMO 9357561

Vessel information

Vessel Name HISTRIA AZURE
IMO Number 9357561
MMSI 538002852
Vessel Type Tanker
Flag 🏳️ Marshall Is
Call Sign V7MG7
Length 180 m
Beam 32 m

Detected Events (100)

Zone Dwell Barents Sea Surveillance Zone
Sep 3, 2026 11:02 UTC 80.0% ▼
  • Zone: Barents Sea Surveillance Zone
  • Duration: 3h 18m
  • Data Points: 2 AIS positions
  • Period: 2026-09-03T11:02:29+00:00 to 2026-09-03T14:20:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_124",
    "zone_name": "Barents Sea Surveillance Zone",
    "dwell_minutes": 198,
    "points_in_zone": 2,
    "first_point": {
        "ts": "2026-09-03T11:02:29+00:00",
        "lat": 36.118058300000001281659933738410472869873046875,
        "lon": 26.62282330000000030167939257808029651641845703125
    },
    "last_point": {
        "ts": "2026-09-03T14:20:30+00:00",
        "lat": 35.93018670000000014397301129065454006195068359375,
        "lon": 27.392070000000000362661012331955134868621826171875
    }
}
Methodology: 2026.01.18
Zone Dwell Barents Sea Surveillance Zone
Sep 3, 2026 10:45 UTC 80.0% ▼
  • Zone: Barents Sea Surveillance Zone
  • Duration: 3h 34m
  • Data Points: 4 AIS positions
  • Period: 2026-09-03T10:45:59+00:00 to 2026-09-03T14:20:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_124",
    "zone_name": "Barents Sea Surveillance Zone",
    "dwell_minutes": 214.5,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-09-03T10:45:59+00:00",
        "lat": 36.13109670000000051004462875425815582275390625,
        "lon": 26.557676699999998248813426471315324306488037109375
    },
    "last_point": {
        "ts": "2026-09-03T14:20:30+00:00",
        "lat": 35.93018670000000014397301129065454006195068359375,
        "lon": 27.392070000000000362661012331955134868621826171875
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 10:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 1h 7m
  • Data Points: 7 AIS positions
  • Period: 2026-08-01T10:04:41+00:00 to 2026-08-01T11:11:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 67,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-08-01T10:04:41+00:00",
        "lat": 34.69062170000000122627170640043914318084716796875,
        "lon": 33.3556882999999970706994645297527313232421875
    },
    "last_point": {
        "ts": "2026-08-01T11:11:44+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35553329999999760957507533021271228790283203125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 09:11 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 2 hours
  • Data Points: 13 AIS positions
  • Period: 2026-08-01T09:11:40+00:00 to 2026-08-01T11:11:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 120.099999999999994315658113919198513031005859375,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-01T09:11:40+00:00",
        "lat": 34.6904167000000001053194864653050899505615234375,
        "lon": 33.355666700000000446379999630153179168701171875
    },
    "last_point": {
        "ts": "2026-08-01T11:11:44+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35553329999999760957507533021271228790283203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 09:11 UTC 75.0% ▼
  • Duration: 2 hours
  • Radius: 28 meters
  • Data Points: 13 AIS positions
  • Centroid: 34.6906, 33.3557
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 28,
    "duration_minutes": 120.099999999999994315658113919198513031005859375,
    "points": 13,
    "centroid": {
        "lat": 34.69056206153845778317190706729888916015625,
        "lon": 33.3556741000000016583726392127573490142822265625
    },
    "bbox": {
        "min_lat": 34.6904167000000001053194864653050899505615234375,
        "min_lon": 33.35544999999999760120772407390177249908447265625,
        "max_lat": 34.69073329999999799611032358370721340179443359375,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 08:11 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 3 hours
  • Data Points: 17 AIS positions
  • Period: 2026-08-01T08:11:41+00:00 to 2026-08-01T11:11:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 180.099999999999994315658113919198513031005859375,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-08-01T08:11:41+00:00",
        "lat": 34.69043330000000224799805437214672565460205078125,
        "lon": 33.355400000000003046807250939309597015380859375
    },
    "last_point": {
        "ts": "2026-08-01T11:11:44+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35553329999999760957507533021271228790283203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 08:11 UTC 75.0% ▼
  • Duration: 3 hours
  • Radius: 29 meters
  • Data Points: 17 AIS positions
  • Centroid: 34.6905, 33.3556
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 28.699999999999999289457264239899814128875732421875,
    "duration_minutes": 180.099999999999994315658113919198513031005859375,
    "points": 17,
    "centroid": {
        "lat": 34.69052098823529917126506916247308254241943359375,
        "lon": 33.3556282294117636411101557314395904541015625
    },
    "bbox": {
        "min_lat": 34.69035000000000223963070311583578586578369140625,
        "min_lon": 33.355400000000003046807250939309597015380859375,
        "max_lat": 34.69073329999999799611032358370721340179443359375,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 07:17 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 3h 54m
  • Data Points: 20 AIS positions
  • Period: 2026-08-01T07:17:43+00:00 to 2026-08-01T11:11:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 234,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-08-01T07:17:43+00:00",
        "lat": 34.6906833000000034417098504491150379180908203125,
        "lon": 33.35398330000000299833118333481252193450927734375
    },
    "last_point": {
        "ts": "2026-08-01T11:11:44+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35553329999999760957507533021271228790283203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 07:17 UTC 75.0% ▼
  • Duration: 3h 54m
  • Radius: 134 meters
  • Data Points: 20 AIS positions
  • Centroid: 34.6905, 33.3554
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 134.19999999999998863131622783839702606201171875,
    "duration_minutes": 234,
    "points": 20,
    "centroid": {
        "lat": 34.69054534000000700189048075117170810699462890625,
        "lon": 33.3554381599999913987630861811339855194091796875
    },
    "bbox": {
        "min_lat": 34.69035000000000223963070311583578586578369140625,
        "min_lon": 33.35398330000000299833118333481252193450927734375,
        "max_lat": 34.69073329999999799611032358370721340179443359375,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 06:05 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 6m
  • Data Points: 26 AIS positions
  • Period: 2026-08-01T06:05:44+00:00 to 2026-08-01T11:11:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 306,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-08-01T06:05:44+00:00",
        "lat": 34.68986670000000316349542117677628993988037109375,
        "lon": 33.35276669999999654692146577872335910797119140625
    },
    "last_point": {
        "ts": "2026-08-01T11:11:44+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35553329999999760957507533021271228790283203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 06:05 UTC 75.0% ▼
  • Duration: 5h 6m
  • Radius: 203 meters
  • Data Points: 26 AIS positions
  • Centroid: 34.6904, 33.3549
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 202.5,
    "duration_minutes": 306,
    "points": 26,
    "centroid": {
        "lat": 34.69044436538461440022729220800101757049560546875,
        "lon": 33.35486351923076853154270793311297893524169921875
    },
    "bbox": {
        "min_lat": 34.68986670000000316349542117677628993988037109375,
        "min_lon": 33.35276669999999654692146577872335910797119140625,
        "max_lat": 34.69073329999999799611032358370721340179443359375,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 05:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 9m
  • Data Points: 34 AIS positions
  • Period: 2026-08-01T05:02:40+00:00 to 2026-08-01T11:11:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 369.1000000000000227373675443232059478759765625,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-08-01T05:02:40+00:00",
        "lat": 34.689466699999996990300132893025875091552734375,
        "lon": 33.35258329999999915571606834419071674346923828125
    },
    "last_point": {
        "ts": "2026-08-01T11:11:44+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35553329999999760957507533021271228790283203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 05:02 UTC 75.0% ▼
  • Duration: 6h 9m
  • Radius: 183 meters
  • Data Points: 34 AIS positions
  • Centroid: 34.6902, 33.3543
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 182.599999999999994315658113919198513031005859375,
    "duration_minutes": 369.1000000000000227373675443232059478759765625,
    "points": 34,
    "centroid": {
        "lat": 34.690246673529401277846773155033588409423828125,
        "lon": 33.35433827647059246146454825066030025482177734375
    },
    "bbox": {
        "min_lat": 34.689466699999996990300132893025875091552734375,
        "min_lon": 33.35258329999999915571606834419071674346923828125,
        "max_lat": 34.69073329999999799611032358370721340179443359375,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 04:11 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 34 AIS positions
  • Period: 2026-08-01T04:38:42+00:00 to 2026-08-01T11:08:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-08-01T04:38:42+00:00",
        "lat": 34.689633299999997007034835405647754669189453125,
        "lon": 33.35263330000000081554389907978475093841552734375
    },
    "last_point": {
        "ts": "2026-08-01T11:08:43+00:00",
        "lat": 34.69073329999999799611032358370721340179443359375,
        "lon": 33.35551670000000257232386502437293529510498046875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 04:11 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 174 meters
  • Data Points: 34 AIS positions
  • Centroid: 34.6902, 33.3543
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 174,
    "duration_minutes": 390,
    "points": 34,
    "centroid": {
        "lat": 34.6902143205882254051175550557672977447509765625,
        "lon": 33.3542529823529463328668498434126377105712890625
    },
    "bbox": {
        "min_lat": 34.689466699999996990300132893025875091552734375,
        "min_lon": 33.35258329999999915571606834419071674346923828125,
        "max_lat": 34.69073329999999799611032358370721340179443359375,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 03:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 35m
  • Data Points: 35 AIS positions
  • Period: 2026-08-01T03:53:44+00:00 to 2026-08-01T10:29:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-08-01T03:53:44+00:00",
        "lat": 34.689383300000002918750396929681301116943359375,
        "lon": 33.35260000000000246700437855906784534454345703125
    },
    "last_point": {
        "ts": "2026-08-01T10:29:40+00:00",
        "lat": 34.69061669999999963920345180667936801910400390625,
        "lon": 33.355649999999997135091689415276050567626953125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 03:02 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 165 meters
  • Data Points: 35 AIS positions
  • Centroid: 34.6901, 33.3540
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 165.30000000000001136868377216160297393798828125,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 35,
    "centroid": {
        "lat": 34.6901253399999944804221740923821926116943359375,
        "lon": 33.35403956285714599516722955740988254547119140625
    },
    "bbox": {
        "min_lat": 34.689383300000002918750396929681301116943359375,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.69069999999999964757080306299030780792236328125,
        "max_lon": 33.3558000000000021145751816220581531524658203125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 02:05 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 37 AIS positions
  • Period: 2026-08-01T02:44:41+00:00 to 2026-08-01T09:17:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-08-01T02:44:41+00:00",
        "lat": 34.68903329999999840538293938152492046356201171875,
        "lon": 33.35258329999999915571606834419071674346923828125
    },
    "last_point": {
        "ts": "2026-08-01T09:17:42+00:00",
        "lat": 34.6904167000000001053194864653050899505615234375,
        "lon": 33.3557332999999971434590406715869903564453125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 02:05 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 235 meters
  • Data Points: 37 AIS positions
  • Centroid: 34.6898, 33.3533
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 235.19999999999998863131622783839702606201171875,
    "duration_minutes": 393,
    "points": 37,
    "centroid": {
        "lat": 34.68979135135135294376595993526279926300048828125,
        "lon": 33.35328030270269294987883768044412136077880859375
    },
    "bbox": {
        "min_lat": 34.68903329999999840538293938152492046356201171875,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.69069999999999964757080306299030780792236328125,
        "max_lon": 33.3557332999999971434590406715869903564453125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 01:08 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 29m
  • Data Points: 36 AIS positions
  • Period: 2026-08-01T01:41:44+00:00 to 2026-08-01T08:11:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 389.8999999999999772626324556767940521240234375,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-08-01T01:41:44+00:00",
        "lat": 34.68896670000000170830389834009110927581787109375,
        "lon": 33.35260000000000246700437855906784534454345703125
    },
    "last_point": {
        "ts": "2026-08-01T08:11:41+00:00",
        "lat": 34.69043330000000224799805437214672565460205078125,
        "lon": 33.355400000000003046807250939309597015380859375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 01:08 UTC 75.0% ▼
  • Duration: 6h 29m
  • Radius: 248 meters
  • Data Points: 36 AIS positions
  • Centroid: 34.6896, 33.3529
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 247.599999999999994315658113919198513031005859375,
    "duration_minutes": 389.8999999999999772626324556767940521240234375,
    "points": 36,
    "centroid": {
        "lat": 34.68961583055556019417053903453052043914794921875,
        "lon": 33.352885405555554143575136549770832061767578125
    },
    "bbox": {
        "min_lat": 34.6889350000000007412381819449365139007568359375,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.69069999999999964757080306299030780792236328125,
        "max_lon": 33.355400000000003046807250939309597015380859375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 1, 2026 00:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 39 AIS positions
  • Period: 2026-08-01T00:53:40+00:00 to 2026-08-01T07:23:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-08-01T00:53:40+00:00",
        "lat": 34.68881499999999817873685969971120357513427734375,
        "lon": 33.3527100000000018553691916167736053466796875
    },
    "last_point": {
        "ts": "2026-08-01T07:23:40+00:00",
        "lat": 34.69069999999999964757080306299030780792236328125,
        "lon": 33.35416670000000038953658076934516429901123046875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 1, 2026 00:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 189 meters
  • Data Points: 39 AIS positions
  • Centroid: 34.6895, 33.3527
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 188.69999999999998863131622783839702606201171875,
    "duration_minutes": 390,
    "points": 39,
    "centroid": {
        "lat": 34.68947683333333742439208435826003551483154296875,
        "lon": 33.35273623076924565111767151392996311187744140625
    },
    "bbox": {
        "min_lat": 34.68881499999999817873685969971120357513427734375,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.69069999999999964757080306299030780792236328125,
        "max_lon": 33.35416670000000038953658076934516429901123046875
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 23:17 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 18m
  • Data Points: 40 AIS positions
  • Period: 2026-07-31T23:53:40+00:00 to 2026-08-01T06:11:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 378.1000000000000227373675443232059478759765625,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-07-31T23:53:40+00:00",
        "lat": 34.68863329999999933761500869877636432647705078125,
        "lon": 33.35286669999999986657712724991142749786376953125
    },
    "last_point": {
        "ts": "2026-08-01T06:11:43+00:00",
        "lat": 34.68995000000000317186277243308722972869873046875,
        "lon": 33.35278329999999868960003368556499481201171875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 23:17 UTC 75.0% ▼
  • Duration: 6h 18m
  • Radius: 81 meters
  • Data Points: 40 AIS positions
  • Centroid: 34.6892, 33.3527
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 80.900000000000005684341886080801486968994140625,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "points": 40,
    "centroid": {
        "lat": 34.68922874750000318044840241782367229461669921875,
        "lon": 33.35265228250001001697455649264156818389892578125
    },
    "bbox": {
        "min_lat": 34.6886166999999971949364407919347286224365234375,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.68995000000000317186277243308722972869873046875,
        "max_lon": 33.35286669999999986657712724991142749786376953125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 22:05 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 37 AIS positions
  • Period: 2026-07-31T22:59:41+00:00 to 2026-08-01T05:29:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-07-31T22:59:41+00:00",
        "lat": 34.68851670000000098070813692174851894378662109375,
        "lon": 33.35294999999999987494447850622236728668212890625
    },
    "last_point": {
        "ts": "2026-08-01T05:29:40+00:00",
        "lat": 34.6896167000000019697836250998079776763916015625,
        "lon": 33.3526499999999970214048516936600208282470703125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 22:05 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 73 meters
  • Data Points: 37 AIS positions
  • Centroid: 34.6891, 33.3527
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 73.400000000000005684341886080801486968994140625,
    "duration_minutes": 390,
    "points": 37,
    "centroid": {
        "lat": 34.6890792756756809467333368957042694091796875,
        "lon": 33.3526650837837905783089809119701385498046875
    },
    "bbox": {
        "min_lat": 34.68846669999999932088030618615448474884033203125,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.6896832999999986668626661412417888641357421875,
        "max_lon": 33.35296670000000318623278872109949588775634765625
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 21:29 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 35 AIS positions
  • Period: 2026-07-31T21:41:42+00:00 to 2026-08-01T04:11:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-07-31T21:41:42+00:00",
        "lat": 34.6882499999999964757080306299030780792236328125,
        "lon": 33.3532000000000010686562745831906795501708984375
    },
    "last_point": {
        "ts": "2026-08-01T04:11:42+00:00",
        "lat": 34.68950000000000244426701101474463939666748046875,
        "lon": 33.35258329999999915571606834419071674346923828125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 21:29 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 81 meters
  • Data Points: 35 AIS positions
  • Centroid: 34.6889, 33.3527
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 81,
    "duration_minutes": 390,
    "points": 35,
    "centroid": {
        "lat": 34.68887237999999939574991003610193729400634765625,
        "lon": 33.35273785142857860819276538677513599395751953125
    },
    "bbox": {
        "min_lat": 34.6882499999999964757080306299030780792236328125,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.68950000000000244426701101474463939666748046875,
        "max_lon": 33.3532000000000010686562745831906795501708984375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 20:29 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 32 AIS positions
  • Period: 2026-07-31T20:35:42+00:00 to 2026-08-01T03:08:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-07-31T20:35:42+00:00",
        "lat": 34.68815000000000026147972675971686840057373046875,
        "lon": 33.35520000000000351292328559793531894683837890625
    },
    "last_point": {
        "ts": "2026-08-01T03:08:44+00:00",
        "lat": 34.689216700000002902015694417059421539306640625,
        "lon": 33.35258329999999915571606834419071674346923828125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 20:29 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 214 meters
  • Data Points: 32 AIS positions
  • Centroid: 34.6887, 33.3530
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 213.69999999999998863131622783839702606201171875,
    "duration_minutes": 393,
    "points": 32,
    "centroid": {
        "lat": 34.688683231249996197220752947032451629638671875,
        "lon": 33.35295853750000816262399894185364246368408203125
    },
    "bbox": {
        "min_lat": 34.68815000000000026147972675971686840057373046875,
        "min_lon": 33.3525666999999970130375004373490810394287109375,
        "max_lat": 34.689216700000002902015694417059421539306640625,
        "max_lon": 33.35520000000000351292328559793531894683837890625
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 19:17 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 29 AIS positions
  • Period: 2026-07-31T19:50:42+00:00 to 2026-08-01T02:11:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-07-31T19:50:42+00:00",
        "lat": 34.68883329999999887149897404015064239501953125,
        "lon": 33.35600000000000164845914696343243122100830078125
    },
    "last_point": {
        "ts": "2026-08-01T02:11:43+00:00",
        "lat": 34.6889350000000007412381819449365139007568359375,
        "lon": 33.35260329999999839856172911822795867919921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 19:17 UTC 75.0% ▼
  • Duration: 6h 21m
  • Radius: 246 meters
  • Data Points: 29 AIS positions
  • Centroid: 34.6886, 33.3533
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 246.400000000000005684341886080801486968994140625,
    "duration_minutes": 381,
    "points": 29,
    "centroid": {
        "lat": 34.688592417241380871928413398563861846923828125,
        "lon": 33.3533272413793184796304558403789997100830078125
    },
    "bbox": {
        "min_lat": 34.68815000000000026147972675971686840057373046875,
        "min_lon": 33.35259500000000087993612396530807018280029296875,
        "max_lat": 34.68898829999999833262336323969066143035888671875,
        "max_lon": 33.35600000000000164845914696343243122100830078125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 18:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 33 AIS positions
  • Period: 2026-07-31T18:56:40+00:00 to 2026-08-01T01:29:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-07-31T18:56:40+00:00",
        "lat": 34.68936670000000077607182902283966541290283203125,
        "lon": 33.3563333000000028505382942967116832733154296875
    },
    "last_point": {
        "ts": "2026-08-01T01:29:43+00:00",
        "lat": 34.68895330000000143400029628537595272064208984375,
        "lon": 33.35259500000000087993612396530807018280029296875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 18:02 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 227 meters
  • Data Points: 33 AIS positions
  • Centroid: 34.6887, 33.3540
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 227.400000000000005684341886080801486968994140625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 33,
    "centroid": {
        "lat": 34.688671927272736184022505767643451690673828125,
        "lon": 33.35399858484849033857244648970663547515869140625
    },
    "bbox": {
        "min_lat": 34.68815000000000026147972675971686840057373046875,
        "min_lon": 33.35259500000000087993612396530807018280029296875,
        "max_lat": 34.68936670000000077607182902283966541290283203125,
        "max_lon": 33.3563333000000028505382942967116832733154296875
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 17:00 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 32 AIS positions
  • Period: 2026-07-31T17:41:41+00:00 to 2026-08-01T00:17:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-07-31T17:41:41+00:00",
        "lat": 34.69011669999999725177985965274274349212646484375,
        "lon": 33.3561499999999995225152815692126750946044921875
    },
    "last_point": {
        "ts": "2026-08-01T00:17:40+00:00",
        "lat": 34.6886166999999971949364407919347286224365234375,
        "lon": 33.35281669999999820674929651431739330291748046875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 17:00 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 205 meters
  • Data Points: 32 AIS positions
  • Centroid: 34.6888, 33.3546
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 204.599999999999994315658113919198513031005859375,
    "duration_minutes": 396,
    "points": 32,
    "centroid": {
        "lat": 34.6887832406249998484781826846301555633544921875,
        "lon": 33.35460723437500263344190898351371288299560546875
    },
    "bbox": {
        "min_lat": 34.68815000000000026147972675971686840057373046875,
        "min_lon": 33.35281669999999820674929651431739330291748046875,
        "max_lat": 34.69011669999999725177985965274274349212646484375,
        "max_lon": 33.3563333000000028505382942967116832733154296875
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 31, 2026 16:42 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 687 meters
  • Data Points: 34 AIS positions
  • Centroid: 34.6891, 33.3556
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 687.299999999999954525264911353588104248046875,
    "duration_minutes": 395.6000000000000227373675443232059478759765625,
    "points": 34,
    "centroid": {
        "lat": 34.68905991176470848813551128841936588287353515625,
        "lon": 33.355624849999998104976839385926723480224609375
    },
    "bbox": {
        "min_lat": 34.68815000000000026147972675971686840057373046875,
        "min_lon": 33.35289999999999821511664777062833309173583984375,
        "max_lat": 34.6908667000000008329152478836476802825927734375,
        "max_lon": 33.36280000000000001136868377216160297393798828125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 16:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 35m
  • Data Points: 34 AIS positions
  • Period: 2026-07-31T16:54:06+00:00 to 2026-07-31T23:29:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 395.6000000000000227373675443232059478759765625,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-07-31T16:54:06+00:00",
        "lat": 34.6908667000000008329152478836476802825927734375,
        "lon": 33.36280000000000001136868377216160297393798828125
    },
    "last_point": {
        "ts": "2026-07-31T23:29:42+00:00",
        "lat": 34.68858329999999767778717796318233013153076171875,
        "lon": 33.35289999999999821511664777062833309173583984375
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 15:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 29m
  • Data Points: 46 AIS positions
  • Period: 2026-07-31T15:50:46+00:00 to 2026-07-31T22:20:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 389.8999999999999772626324556767940521240234375,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-07-31T15:50:46+00:00",
        "lat": 34.64703329999999681376721127890050411224365234375,
        "lon": 33.5078333000000014862962416373193264007568359375
    },
    "last_point": {
        "ts": "2026-07-31T22:20:40+00:00",
        "lat": 34.68841669999999766105247545056045055389404296875,
        "lon": 33.3530166999999977406332618556916713714599609375
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 14:02 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 37m
  • Data Points: 60 AIS positions
  • Period: 2026-07-31T14:52:05+00:00 to 2026-07-31T21:29:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 397.6000000000000227373675443232059478759765625,
    "points_in_zone": 60,
    "first_point": {
        "ts": "2026-07-31T14:52:05+00:00",
        "lat": 34.5888283000000029687726055271923542022705078125,
        "lon": 33.723281700000001137595972977578639984130859375
    },
    "last_point": {
        "ts": "2026-07-31T21:29:43+00:00",
        "lat": 34.68820000000000192130755749531090259552001953125,
        "lon": 33.35334999999999894271240918897092342376708984375
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 31, 2026 13:54 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 35m
  • Data Points: 71 AIS positions
  • Period: 2026-07-31T13:54:05+00:00 to 2026-07-31T20:29:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 395.6000000000000227373675443232059478759765625,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-07-31T13:54:05+00:00",
        "lat": 34.53073330000000140671545523218810558319091796875,
        "lon": 33.93764999999999787405613460578024387359619140625
    },
    "last_point": {
        "ts": "2026-07-31T20:29:42+00:00",
        "lat": 34.6882666999999997869963408447802066802978515625,
        "lon": 33.35536669999999759284037281759083271026611328125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 15:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 1h 29m
  • Data Points: 24 AIS positions
  • Period: 2026-07-28T15:01:43+00:00 to 2026-07-28T16:30:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 89.2000000000000028421709430404007434844970703125,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-28T15:01:43+00:00",
        "lat": 34.57644499999999965211827657185494899749755859375,
        "lon": 33.6625183000000021138475858606398105621337890625
    },
    "last_point": {
        "ts": "2026-07-28T16:30:53+00:00",
        "lat": 34.42798330000000106565494206734001636505126953125,
        "lon": 34.021216699999996535552782006561756134033203125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 14:00 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 2h 30m
  • Data Points: 39 AIS positions
  • Period: 2026-07-28T14:00:43+00:00 to 2026-07-28T16:30:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 150.19999999999998863131622783839702606201171875,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-07-28T14:00:43+00:00",
        "lat": 34.67493329999999929214027361012995243072509765625,
        "lon": 33.4247050000000029967850423417985439300537109375
    },
    "last_point": {
        "ts": "2026-07-28T16:30:53+00:00",
        "lat": 34.42798330000000106565494206734001636505126953125,
        "lon": 34.021216699999996535552782006561756134033203125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 13:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 3h 23m
  • Data Points: 49 AIS positions
  • Period: 2026-07-28T13:07:21+00:00 to 2026-07-28T16:30:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 203.5,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-07-28T13:07:21+00:00",
        "lat": 34.7101382999999970024873618967831134796142578125,
        "lon": 33.32246500000000111185727291740477085113525390625
    },
    "last_point": {
        "ts": "2026-07-28T16:30:53+00:00",
        "lat": 34.42798330000000106565494206734001636505126953125,
        "lon": 34.021216699999996535552782006561756134033203125
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 28, 2026 12:07 UTC 70/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 317 meters
  • Average Distance: 318 meters
  • Duration: 1 hours
  • Period: 2026-07-28T12:07:23+00:00 to 2026-07-28T13:07:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 317m, avg 318m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 318m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T18:15:07.773549+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.1000000000000227373675443232059478759765625,
    "avg_distance_m": 317.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 60,
    "overlap_duration_s": 3598,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T12:07:23+00:00",
        "end": "2026-07-28T13:07:21+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 318m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 317m, avg 318m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70913250000000260797605733387172222137451171875,
            "lon": 33.32122789999999667998054064810276031494140625
        },
        "time_window": {
            "start_ts": "2026-07-28T12:07:23+00:00",
            "end_ts": "2026-07-28T13:07:21+00:00"
        },
        "searched_at": "2026-07-28T18:15:07.773549+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 12:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 4h 23m
  • Data Points: 50 AIS positions
  • Period: 2026-07-28T12:07:23+00:00 to 2026-07-28T16:30:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 263.5,
    "points_in_zone": 50,
    "first_point": {
        "ts": "2026-07-28T12:07:23+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32244670000000041909515857696533203125
    },
    "last_point": {
        "ts": "2026-07-28T16:30:53+00:00",
        "lat": 34.42798330000000106565494206734001636505126953125,
        "lon": 34.021216699999996535552782006561756134033203125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 11:19 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 11m
  • Data Points: 53 AIS positions
  • Period: 2026-07-28T11:19:22+00:00 to 2026-07-28T16:30:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 311.5,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-07-28T11:19:22+00:00",
        "lat": 34.71012999999999948386175674386322498321533203125,
        "lon": 33.32245329999999938763721729628741741180419921875
    },
    "last_point": {
        "ts": "2026-07-28T16:30:53+00:00",
        "lat": 34.42798330000000106565494206734001636505126953125,
        "lon": 34.021216699999996535552782006561756134033203125
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 28, 2026 11:18 UTC 75/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 317 meters
  • Duration: 1h 48m
  • Period: 2026-07-28T11:19:22+00:00 to 2026-07-28T13:07:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 317m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 317m
Duration20/25Duration 108 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.8999999999999772626324556767940521240234375,
    "avg_distance_m": 317.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 108,
    "overlap_duration_s": 6479,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T11:19:22+00:00",
        "end": "2026-07-28T13:07:21+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 317m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 108 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 317m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 28, 2026 10:22 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 317 meters
  • Duration: 2h 45m
  • Period: 2026-07-28T10:22:22+00:00 to 2026-07-28T13:07:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 317m) for 165 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 317m
Duration25/25Duration 165 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T16:30:01.513756+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.8999999999999772626324556767940521240234375,
    "avg_distance_m": 317.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 165,
    "overlap_duration_s": 9899,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T10:22:22+00:00",
        "end": "2026-07-28T13:07:21+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 317m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 165 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 317m) for 165 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7091295999999971400029608048498630523681640625,
            "lon": 33.3212175999999971054421621374785900115966796875
        },
        "time_window": {
            "start_ts": "2026-07-28T10:22:22+00:00",
            "end_ts": "2026-07-28T13:07:21+00:00"
        },
        "searched_at": "2026-07-28T16:30:01.513756+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 10:22 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 8m
  • Data Points: 54 AIS positions
  • Period: 2026-07-28T10:22:22+00:00 to 2026-07-28T16:30:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 368.5,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-07-28T10:22:22+00:00",
        "lat": 34.7101499999999987267074175179004669189453125,
        "lon": 33.3224383000000017318598111160099506378173828125
    },
    "last_point": {
        "ts": "2026-07-28T16:30:53+00:00",
        "lat": 34.42798330000000106565494206734001636505126953125,
        "lon": 34.021216699999996535552782006561756134033203125
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 28, 2026 09:01 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 318 meters
  • Duration: 4h 5m
  • Period: 2026-07-28T09:01:24+00:00 to 2026-07-28T13:07:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 318m) for 246 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 318m
Duration25/25Duration 246 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T14:00:01.797965+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.5,
    "avg_distance_m": 317.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 245.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 14757,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T09:01:24+00:00",
        "end": "2026-07-28T13:07:21+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 318m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 246 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 318m) for 246 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7091290999999984023816068656742572784423828125,
            "lon": 33.321220199999999067586031742393970489501953125
        },
        "time_window": {
            "start_ts": "2026-07-28T09:01:24+00:00",
            "end_ts": "2026-07-28T13:07:21+00:00"
        },
        "searched_at": "2026-07-28T14:00:01.797965+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 09:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 37m
  • Data Points: 51 AIS positions
  • Period: 2026-07-28T09:40:21+00:00 to 2026-07-28T16:17:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 397.19999999999998863131622783839702606201171875,
    "points_in_zone": 51,
    "first_point": {
        "ts": "2026-07-28T09:40:21+00:00",
        "lat": 34.710156699999998863859218545258045196533203125,
        "lon": 33.32246169999999807487256475724279880523681640625
    },
    "last_point": {
        "ts": "2026-07-28T16:17:33+00:00",
        "lat": 34.44929330000000078371158451773226261138916015625,
        "lon": 33.9674432999999993398887454532086849212646484375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 28, 2026 09:01 UTC 75.0% ▼
  • Duration: 4h 5m
  • Radius: 3 meters
  • Data Points: 13 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 245.900000000000005684341886080801486968994140625,
    "points": 13,
    "centroid": {
        "lat": 34.7101401307692327691256650723516941070556640625,
        "lon": 33.32244781538461353420643717981874942779541015625
    },
    "bbox": {
        "min_lat": 34.7101167000000003781678969971835613250732421875,
        "min_lon": 33.3224282999999985577233019284904003143310546875,
        "max_lat": 34.710156699999998863859218545258045196533203125,
        "max_lon": 33.32247499999999718056642450392246246337890625
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 28, 2026 08:51 UTC 65/100 ▼
Vessel A: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 316 meters
  • Average Distance: 318 meters
  • Duration: 59 minutes
  • Period: 2026-07-28T08:51:40+00:00 to 2026-07-28T09:51:35+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 316m, avg 318m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 318m
Duration10/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 315.5,
    "avg_distance_m": 318,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 59.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 3595,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T08:51:40+00:00",
        "end": "2026-07-28T09:51:35+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 318m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 60 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 316m, avg 318m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 07:19 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 32m
  • Data Points: 23 AIS positions
  • Period: 2026-07-28T07:22:21+00:00 to 2026-07-28T13:54:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 392.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-28T07:22:21+00:00",
        "lat": 34.7101267000000035523044061847031116485595703125,
        "lon": 33.3224416999999988320269039832055568695068359375
    },
    "last_point": {
        "ts": "2026-07-28T13:54:25+00:00",
        "lat": 34.6839700000000021873347577638924121856689453125,
        "lon": 33.40287670000000019854269339703023433685302734375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 28, 2026 07:19 UTC 75.0% ▼
  • Duration: 5h 48m
  • Radius: 3 meters
  • Data Points: 15 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 2.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 348,
    "points": 15,
    "centroid": {
        "lat": 34.7101386733333328038497711531817913055419921875,
        "lon": 33.3224476666666618029921664856374263763427734375
    },
    "bbox": {
        "min_lat": 34.7101167000000003781678969971835613250732421875,
        "min_lon": 33.3224282999999985577233019284904003143310546875,
        "max_lat": 34.710156699999998863859218545258045196533203125,
        "max_lon": 33.32247499999999718056642450392246246337890625
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 28, 2026 02:10 UTC 60/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 317 meters
  • Duration: 33 minutes
  • Period: 2026-07-28T02:10:23+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 317m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 317m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T08:15:01.697261+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 317.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "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": "2026-07-28T02:10:23+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 317m"
            },
            "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 \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 317m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70912059999999854653651709668338298797607421875,
            "lon": 33.321220199999999067586031742393970489501953125
        },
        "time_window": {
            "start_ts": "2026-07-28T02:10:23+00:00",
            "end_ts": "2026-07-28T02:43:23+00:00"
        },
        "searched_at": "2026-07-28T08:15:01.697261+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 02:10 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 6 AIS positions
  • Period: 2026-07-28T02:43:23+00:00 to 2026-07-28T09:19:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-07-28T02:43:23+00:00",
        "lat": 34.71014170000000120808181236498057842254638671875,
        "lon": 33.32245329999999938763721729628741741180419921875
    },
    "last_point": {
        "ts": "2026-07-28T09:19:23+00:00",
        "lat": 34.7101449999999971396391629241406917572021484375,
        "lon": 33.3224282999999985577233019284904003143310546875
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 28, 2026 02:05 UTC 65/100 ▼
Vessel A: IMO 9411135 (STAR C) LIBERIA
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 317 meters
  • Average Distance: 321 meters
  • Duration: 45 minutes
  • Period: 2026-07-28T02:05:53+00:00 to 2026-07-28T02:50:53+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STAR C and HISTRIA AZURE) maintained close proximity (min 317m, avg 321m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 321m
Duration10/25Duration 45 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T08:00:02.067594+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 317.19999999999998863131622783839702606201171875,
    "avg_distance_m": 320.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 45,
    "overlap_duration_s": 2700,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T02:05:53+00:00",
        "end": "2026-07-28T02:50:53+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 321m"
            },
            "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 \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAR C and HISTRIA AZURE) maintained close proximity (min 317m, avg 321m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70891639999999966903487802483141422271728515625,
            "lon": 33.3215081999999966910763760097324848175048828125
        },
        "time_window": {
            "start_ts": "2026-07-28T02:05:53+00:00",
            "end_ts": "2026-07-28T02:50:53+00:00"
        },
        "searched_at": "2026-07-28T08:00:02.067594+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 28, 2026 01:48 UTC 70/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 318 meters
  • Duration: 1h 3m
  • Period: 2026-07-28T01:40:25+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 318m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 318m
Duration15/25Duration 63 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 317.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 63,
    "overlap_duration_s": 3778,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T01:40:25+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 318m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 63 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 316m, avg 318m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 28, 2026 01:05 UTC 70/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 320 meters
  • Duration: 1h 3m
  • Period: 2026-07-28T01:40:25+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 320m
Duration15/25Duration 63 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.19999999999998863131622783839702606201171875,
    "avg_distance_m": 320.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 63,
    "overlap_duration_s": 3778,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T01:40:25+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 320m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 63 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 01:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 18m
  • Data Points: 8 AIS positions
  • Period: 2026-07-28T01:04:21+00:00 to 2026-07-28T07:22:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 378,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-28T01:04:21+00:00",
        "lat": 34.71012329999999934670995571650564670562744140625,
        "lon": 33.3224416999999988320269039832055568695068359375
    },
    "last_point": {
        "ts": "2026-07-28T07:22:21+00:00",
        "lat": 34.7101267000000035523044061847031116485595703125,
        "lon": 33.3224416999999988320269039832055568695068359375
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 28, 2026 00:28 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 320 meters
  • Duration: 2h 14m
  • Period: 2026-07-28T00:28:43+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 135 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 320m
Duration25/25Duration 135 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.19999999999998863131622783839702606201171875,
    "avg_distance_m": 319.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 134.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 8080,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T00:28:43+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 135 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 135 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 28, 2026 00:28 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 24m
  • Data Points: 9 AIS positions
  • Period: 2026-07-28T00:58:17+00:00 to 2026-07-28T07:22:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-07-28T00:58:17+00:00",
        "lat": 34.71014000000000265799826593138277530670166015625,
        "lon": 33.32245830000000097470547189004719257354736328125
    },
    "last_point": {
        "ts": "2026-07-28T07:22:21+00:00",
        "lat": 34.7101267000000035523044061847031116485595703125,
        "lon": 33.3224416999999988320269039832055568695068359375
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 28, 2026 00:21 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 314 meters
  • Average Distance: 317 meters
  • Duration: 2h 14m
  • Period: 2026-07-28T00:28:43+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 317m) for 135 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 314m, avg 317m
Duration25/25Duration 135 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 314.19999999999998863131622783839702606201171875,
    "avg_distance_m": 317,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 134.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 8080,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-28T00:28:43+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 314m, avg 317m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 135 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 317m) for 135 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 27, 2026 23:13 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 314 meters
  • Average Distance: 317 meters
  • Duration: 3h 29m
  • Period: 2026-07-27T23:13:40+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 317m) for 210 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 314m, avg 317m
Duration25/25Duration 210 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T05:30:01.538174+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 314.19999999999998863131622783839702606201171875,
    "avg_distance_m": 317.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 209.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 12583,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T23:13:40+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 314m, avg 317m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 210 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 317m) for 210 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70912150000000195859684026800096035003662109375,
            "lon": 33.32122689999999920473783276975154876708984375
        },
        "time_window": {
            "start_ts": "2026-07-27T23:13:40+00:00",
            "end_ts": "2026-07-28T02:43:23+00:00"
        },
        "searched_at": "2026-07-28T05:30:01.538174+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 23:13 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 3h 29m
  • Data Points: 12 AIS positions
  • Period: 2026-07-27T23:13:40+00:00 to 2026-07-28T02:43:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 209.69999999999998863131622783839702606201171875,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-07-27T23:13:40+00:00",
        "lat": 34.710111699999998791099642403423786163330078125,
        "lon": 33.32247830000000021755113266408443450927734375
    },
    "last_point": {
        "ts": "2026-07-28T02:43:23+00:00",
        "lat": 34.71014170000000120808181236498057842254638671875,
        "lon": 33.32245329999999938763721729628741741180419921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 23:13 UTC 75.0% ▼
  • Duration: 3h 29m
  • Radius: 3 meters
  • Data Points: 12 AIS positions
  • Centroid: 34.7101, 33.3225
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 209.69999999999998863131622783839702606201171875,
    "points": 12,
    "centroid": {
        "lat": 34.71013097499999133788151084445416927337646484375,
        "lon": 33.322454158333329132801736705005168914794921875
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.3224349999999986948751029558479785919189453125,
        "max_lat": 34.7101550000000003137756721116602420806884765625,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 27, 2026 22:37 UTC 65/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 318 meters
  • Duration: 48 minutes
  • Period: 2026-07-27T22:37:40+00:00 to 2026-07-27T23:25:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 318m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 318m
Duration10/25Duration 48 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T05:16:38.734671+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.1000000000000227373675443232059478759765625,
    "avg_distance_m": 318.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.5,
    "duration_minutes": 48,
    "overlap_duration_s": 2883,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T22:37:40+00:00",
        "end": "2026-07-27T23:25:43+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 318m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 318m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70892599999999816873241798020899295806884765625,
            "lon": 33.32150850000000019690560293383896350860595703125
        },
        "time_window": {
            "start_ts": "2026-07-27T22:37:40+00:00",
            "end_ts": "2026-07-27T23:25:43+00:00"
        },
        "searched_at": "2026-07-28T05:16:38.734671+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 22:33 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 314 meters
  • Average Distance: 318 meters
  • Duration: 4h 8m
  • Period: 2026-07-27T22:34:42+00:00 to 2026-07-28T02:43:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 318m) for 249 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 314m, avg 318m
Duration25/25Duration 249 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 314.19999999999998863131622783839702606201171875,
    "avg_distance_m": 317.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 248.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 14921,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T22:34:42+00:00",
        "end": "2026-07-28T02:43:23+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 314m, avg 318m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 249 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 318m) for 249 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 22:28 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 4h 14m
  • Data Points: 16 AIS positions
  • Period: 2026-07-27T22:28:40+00:00 to 2026-07-28T02:43:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 254.69999999999998863131622783839702606201171875,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-07-27T22:28:40+00:00",
        "lat": 34.7101516999999972767909639514982700347900390625,
        "lon": 33.32242500000000262616595136933028697967529296875
    },
    "last_point": {
        "ts": "2026-07-28T02:43:23+00:00",
        "lat": 34.71014170000000120808181236498057842254638671875,
        "lon": 33.32245329999999938763721729628741741180419921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 22:28 UTC 75.0% ▼
  • Duration: 4h 14m
  • Radius: 4 meters
  • Data Points: 16 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 254.69999999999998863131622783839702606201171875,
    "points": 16,
    "centroid": {
        "lat": 34.7101364562499981047949404455721378326416015625,
        "lon": 33.32244811874999612655301461927592754364013671875
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.322423299999996970655047334730625152587890625,
        "max_lat": 34.71016329999999783240127726458013057708740234375,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 20:58 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
  • Minimum Distance: 314 meters
  • Average Distance: 318 meters
  • Duration: 5h 20m
  • Period: 2026-07-27T20:58:40+00:00 to 2026-07-28T02:19:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 318m) for 321 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 314m, avg 318m
Duration25/25Duration 321 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 314.19999999999998863131622783839702606201171875,
    "avg_distance_m": 317.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 320.6000000000000227373675443232059478759765625,
    "overlap_duration_s": 19239,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T20:58:40+00:00",
        "end": "2026-07-28T02:19:19+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 314m, avg 318m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 321 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STI MIGHTY) maintained close proximity (min 314m, avg 318m) for 321 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 27, 2026 20:46 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 319 meters
  • Duration: 2h 39m
  • Period: 2026-07-27T20:46:39+00:00 to 2026-07-27T23:25:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 319m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 319m
Duration25/25Duration 159 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T02:45:01.882297+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.1000000000000227373675443232059478759765625,
    "avg_distance_m": 319.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 159.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 9544,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T20:46:39+00:00",
        "end": "2026-07-27T23:25:43+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 319m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 159 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 319m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70892769999999671881596441380679607391357421875,
            "lon": 33.321506900000002815431798808276653289794921875
        },
        "time_window": {
            "start_ts": "2026-07-27T20:46:39+00:00",
            "end_ts": "2026-07-27T23:25:43+00:00"
        },
        "searched_at": "2026-07-28T02:45:01.882297+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 20:01 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 56m
  • Data Points: 19 AIS positions
  • Period: 2026-07-27T20:46:39+00:00 to 2026-07-28T02:43:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 356.69999999999998863131622783839702606201171875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-27T20:46:39+00:00",
        "lat": 34.7101499999999987267074175179004669189453125,
        "lon": 33.3224517000000020061634131707251071929931640625
    },
    "last_point": {
        "ts": "2026-07-28T02:43:23+00:00",
        "lat": 34.71014170000000120808181236498057842254638671875,
        "lon": 33.32245329999999938763721729628741741180419921875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 20:01 UTC 75.0% ▼
  • Duration: 5h 56m
  • Radius: 4 meters
  • Data Points: 19 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 4,
    "duration_minutes": 356.69999999999998863131622783839702606201171875,
    "points": 19,
    "centroid": {
        "lat": 34.7101371000000114008798846043646335601806640625,
        "lon": 33.32244736315789879199655842967331409454345703125
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.322423299999996970655047334730625152587890625,
        "max_lat": 34.71016329999999783240127726458013057708740234375,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 19:29 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 320 meters
  • Duration: 4h 12m
  • Period: 2026-07-27T19:13:42+00:00 to 2026-07-27T23:25:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 252 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 320m
Duration25/25Duration 252 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.1000000000000227373675443232059478759765625,
    "avg_distance_m": 319.5,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 252,
    "overlap_duration_s": 15121,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T19:13:42+00:00",
        "end": "2026-07-27T23:25:43+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 252 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 252 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 27, 2026 19:21 UTC 60/100 ▼
Vessel A: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 318 meters
  • Average Distance: 319 meters
  • Duration: 42 minutes
  • Period: 2026-07-27T19:21:27+00:00 to 2026-07-27T20:03:29+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 318m, avg 318m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 318m, avg 318m
Duration5/25Duration 42 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-28T01:32:11.458944+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 317.6000000000000227373675443232059478759765625,
    "avg_distance_m": 318.5,
    "distance_consistency_m": 0.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 42,
    "overlap_duration_s": 2522,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T19:21:27+00:00",
        "end": "2026-07-27T20:03:29+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 318m, avg 318m"
            },
            "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 \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 318m, avg 318m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70913060000000172067302628420293331146240234375,
            "lon": 33.32121169999999921174094197340309619903564453125
        },
        "time_window": {
            "start_ts": "2026-07-27T19:21:27+00:00",
            "end_ts": "2026-07-27T20:03:29+00:00"
        },
        "searched_at": "2026-07-28T01:32:11.458944+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 19:13 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 32m
  • Data Points: 19 AIS positions
  • Period: 2026-07-27T19:46:38+00:00 to 2026-07-28T02:19:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 392.69999999999998863131622783839702606201171875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-27T19:46:38+00:00",
        "lat": 34.71014670000000279515006695874035358428955078125,
        "lon": 33.322443300000003318928065709769725799560546875
    },
    "last_point": {
        "ts": "2026-07-28T02:19:19+00:00",
        "lat": 34.7101267000000035523044061847031116485595703125,
        "lon": 33.3224383000000017318598111160099506378173828125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 19:13 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 4 meters
  • Data Points: 19 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 392.69999999999998863131622783839702606201171875,
    "points": 19,
    "centroid": {
        "lat": 34.71013797368420483735462767072021961212158203125,
        "lon": 33.32244595789473606828323681838810443878173828125
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.322423299999996970655047334730625152587890625,
        "max_lat": 34.71016329999999783240127726458013057708740234375,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 18:40 UTC 70/100 ▼
Vessel A: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 316 meters
  • Average Distance: 318 meters
  • Duration: 1h 21m
  • Period: 2026-07-27T18:42:26+00:00 to 2026-07-27T20:03:29+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 316m, avg 318m) for 81 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 318m
Duration15/25Duration 81 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 316.3999999999999772626324556767940521240234375,
    "avg_distance_m": 318.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 81,
    "overlap_duration_s": 4863,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T18:42:26+00:00",
        "end": "2026-07-27T20:03:29+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 318m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 81 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 316m, avg 318m) for 81 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 18:35 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 319 meters
  • Duration: 5h 18m
  • Period: 2026-07-27T18:07:40+00:00 to 2026-07-27T23:25:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 319m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 319m
Duration25/25Duration 318 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.1000000000000227373675443232059478759765625,
    "avg_distance_m": 319.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 318.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 19083,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T18:07:40+00:00",
        "end": "2026-07-27T23:25:43+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 319m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 318 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 319m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 18:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 23m
  • Data Points: 20 AIS positions
  • Period: 2026-07-27T18:40:42+00:00 to 2026-07-28T01:04:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 383.6000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-07-27T18:40:42+00:00",
        "lat": 34.71012830000000093377821031026542186737060546875,
        "lon": 33.32244670000000041909515857696533203125
    },
    "last_point": {
        "ts": "2026-07-28T01:04:21+00:00",
        "lat": 34.71012329999999934670995571650564670562744140625,
        "lon": 33.3224416999999988320269039832055568695068359375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 18:07 UTC 75.0% ▼
  • Duration: 6h 23m
  • Radius: 5 meters
  • Data Points: 20 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5,
    "duration_minutes": 383.6000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 34.710141069999991714212228544056415557861328125,
        "lon": 33.3224450800000084882412920705974102020263671875
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.322423299999996970655047334730625152587890625,
        "max_lat": 34.71016829999999941946953185833990573883056640625,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 17:40 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 317 meters
  • Average Distance: 320 meters
  • Duration: 5h 33m
  • Period: 2026-07-27T17:40:42+00:00 to 2026-07-27T23:13:40+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 333 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 320m
Duration25/25Duration 333 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 317.1000000000000227373675443232059478759765625,
    "avg_distance_m": 319.5,
    "distance_consistency_m": 1.5,
    "duration_minutes": 333,
    "overlap_duration_s": 19978,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T17:40:42+00:00",
        "end": "2026-07-27T23:13:40+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 333 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 317m, avg 320m) for 333 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 17:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 22 AIS positions
  • Period: 2026-07-27T17:25:42+00:00 to 2026-07-27T23:52:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-27T17:25:42+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32246169999999807487256475724279880523681640625
    },
    "last_point": {
        "ts": "2026-07-27T23:52:42+00:00",
        "lat": 34.7101550000000003137756721116602420806884765625,
        "lon": 33.322468299999997043414623476564884185791015625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 17:04 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 22 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 387,
    "points": 22,
    "centroid": {
        "lat": 34.71014514090909841570464777760207653045654296875,
        "lon": 33.32244818181818146740624797530472278594970703125
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.322423299999996970655047334730625152587890625,
        "max_lat": 34.71016829999999941946953185833990573883056640625,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 27, 2026 17:03 UTC 60/100 ▼
Vessel A: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 317 meters
  • Average Distance: 318 meters
  • Duration: 42 minutes
  • Period: 2026-07-27T17:03:29+00:00 to 2026-07-27T17:45:29+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 317m, avg 318m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 318m
Duration5/25Duration 42 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-27T23:30:01.760926+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 317,
    "avg_distance_m": 317.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 0.59999999999999997779553950749686919152736663818359375,
    "duration_minutes": 42,
    "overlap_duration_s": 2520,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T17:03:29+00:00",
        "end": "2026-07-27T17:45:29+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 318m"
            },
            "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 \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 317m, avg 318m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70913399999999882084011915139853954315185546875,
            "lon": 33.3212314000000020541847334243357181549072265625
        },
        "time_window": {
            "start_ts": "2026-07-27T17:03:29+00:00",
            "end_ts": "2026-07-27T17:45:29+00:00"
        },
        "searched_at": "2026-07-27T23:30:01.760926+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 16:50 UTC 70/100 ▼
Vessel A: IMO 9411135 (STAR C) LIBERIA
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 317 meters
  • Average Distance: 320 meters
  • Duration: 1h 18m
  • Period: 2026-07-27T16:50:50+00:00 to 2026-07-27T18:08:50+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (STAR C and HISTRIA AZURE) maintained close proximity (min 316m, avg 320m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 320m
Duration15/25Duration 78 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 316.5,
    "avg_distance_m": 319.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 2,
    "duration_minutes": 78,
    "overlap_duration_s": 4680,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T16:50:50+00:00",
        "end": "2026-07-27T18:08:50+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 320m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 78 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAR C and HISTRIA AZURE) maintained close proximity (min 316m, avg 320m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 16:37 UTC 70/100 ▼
Vessel A: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 317 meters
  • Average Distance: 318 meters
  • Duration: 1h 15m
  • Period: 2026-07-27T16:30:31+00:00 to 2026-07-27T17:45:29+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 316m, avg 318m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 316m, avg 318m
Duration15/25Duration 75 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 316.5,
    "avg_distance_m": 317.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "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": "2026-07-27T16:30:31+00:00",
        "end": "2026-07-27T17:45:29+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 318m"
            },
            "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 \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 316m, avg 318m) 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 Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 16:37 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 24 AIS positions
  • Period: 2026-07-27T16:58:39+00:00 to 2026-07-27T23:25:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-27T16:58:39+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32245830000000097470547189004719257354736328125
    },
    "last_point": {
        "ts": "2026-07-27T23:25:43+00:00",
        "lat": 34.71012329999999934670995571650564670562744140625,
        "lon": 33.32245499999999793772076372988522052764892578125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 16:37 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 24 AIS positions
  • Centroid: 34.7101, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 24,
    "centroid": {
        "lat": 34.71014492083332925176364369690418243408203125,
        "lon": 33.32244777916667288764074328355491161346435546875
    },
    "bbox": {
        "min_lat": 34.710111699999998791099642403423786163330078125,
        "min_lon": 33.322423299999996970655047334730625152587890625,
        "max_lat": 34.71016829999999941946953185833990573883056640625,
        "max_lon": 33.32247830000000021755113266408443450927734375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Jul 27, 2026 15:04 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 318 meters
  • Average Distance: 320 meters
  • Duration: 2h 27m
  • Period: 2026-07-27T15:04:44+00:00 to 2026-07-27T17:31:42+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 318m, avg 320m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 318m, avg 320m
Duration25/25Duration 147 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-27T21:15:34.454416+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 318.3999999999999772626324556767940521240234375,
    "avg_distance_m": 320,
    "distance_consistency_m": 1,
    "duration_minutes": 147,
    "overlap_duration_s": 8818,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T15:04:44+00:00",
        "end": "2026-07-27T17:31:42+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 318m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 318m, avg 320m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70892959999999760611899546347558498382568359375,
            "lon": 33.32152210000000280842868960462510585784912109375
        },
        "time_window": {
            "start_ts": "2026-07-27T15:04:44+00:00",
            "end_ts": "2026-07-27T17:31:42+00:00"
        },
        "searched_at": "2026-07-27T21:15:34.454416+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 15:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 53m
  • Data Points: 23 AIS positions
  • Period: 2026-07-27T15:04:44+00:00 to 2026-07-27T20:58:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 353.8999999999999772626324556767940521240234375,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-27T15:04:44+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32245669999999648780431016348302364349365234375
    },
    "last_point": {
        "ts": "2026-07-27T20:58:40+00:00",
        "lat": 34.71012830000000093377821031026542186737060546875,
        "lon": 33.3224349999999986948751029558479785919189453125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 15:04 UTC 75.0% ▼
  • Duration: 5h 53m
  • Radius: 3 meters
  • Data Points: 23 AIS positions
  • Centroid: 34.7101, 33.3225
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 353.8999999999999772626324556767940521240234375,
    "points": 23,
    "centroid": {
        "lat": 34.7101471695652179505486856214702129364013671875,
        "lon": 33.32245080000000569953044760040938854217529296875
    },
    "bbox": {
        "min_lat": 34.71012830000000093377821031026542186737060546875,
        "min_lon": 33.32243170000000276331775239668786525726318359375,
        "max_lat": 34.71016829999999941946953185833990573883056640625,
        "max_lon": 33.32247170000000124900907394476234912872314453125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Jul 27, 2026 14:31 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 26 AIS positions
  • Period: 2026-07-27T14:31:39+00:00 to 2026-07-27T20:58:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-07-27T14:31:39+00:00",
        "lat": 34.71016670000000203799572773277759552001953125,
        "lon": 33.32246500000000111185727291740477085113525390625
    },
    "last_point": {
        "ts": "2026-07-27T20:58:40+00:00",
        "lat": 34.71012830000000093377821031026542186737060546875,
        "lon": 33.3224349999999986948751029558479785919189453125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Jul 27, 2026 14:31 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 3 meters
  • Data Points: 26 AIS positions
  • Centroid: 34.7101, 33.3225
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 387,
    "points": 26,
    "centroid": {
        "lat": 34.71014974230769212226732634007930755615234375,
        "lon": 33.3224517961538566623858059756457805633544921875
    },
    "bbox": {
        "min_lat": 34.71012830000000093377821031026542186737060546875,
        "min_lon": 33.32243170000000276331775239668786525726318359375,
        "max_lat": 34.71017169999999651963662472553551197052001953125,
        "max_lon": 33.3224732999999986304828780703246593475341796875
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 14:24 UTC 65/100 ▼
Vessel A: IMO 9854739 (STI MIGHTY) MARSHALL ISLANDS
Vessel B: IMO 9357561 (HISTRIA AZURE) Marshall Is
  • Minimum Distance: 315 meters
  • Average Distance: 318 meters
  • Duration: 57 minutes
  • Period: 2026-07-27T14:24:30+00:00 to 2026-07-27T15:21:33+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 314m, avg 318m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 314m, avg 318m
Duration10/25Duration 57 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538010459,
        "imo": 9854739,
        "name": "STI MIGHTY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "min_distance_m": 314.5,
    "avg_distance_m": 318,
    "distance_consistency_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 57,
    "overlap_duration_s": 3423,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T14:24:30+00:00",
        "end": "2026-07-27T15:21:33+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 314m, avg 318m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 57 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI MIGHTY and HISTRIA AZURE) maintained close proximity (min 314m, avg 318m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Jul 27, 2026 14:23 UTC 80/100 ▼
Vessel A: IMO 9357561 (HISTRIA AZURE) Marshall Is
Vessel B: IMO 9411135 (STAR C) LIBERIA
  • Minimum Distance: 318 meters
  • Average Distance: 320 meters
  • Duration: 2h 39m
  • Period: 2026-07-27T14:52:40+00:00 to 2026-07-27T17:31:42+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 318m, avg 320m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 318m, avg 320m
Duration25/25Duration 159 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538002852,
        "imo": 9357561,
        "name": "HISTRIA AZURE",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636022659,
        "imo": 9411135,
        "name": "STAR C",
        "flag": "LIBERIA"
    },
    "min_distance_m": 318.3999999999999772626324556767940521240234375,
    "avg_distance_m": 320.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 159,
    "overlap_duration_s": 9542,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-27T14:52:40+00:00",
        "end": "2026-07-27T17:31:42+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 318m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 159 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HISTRIA AZURE and STAR C) maintained close proximity (min 318m, avg 320m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Sep 3 14:20 35.9302 27.3921 11.8 kn 121.6° North Sea Surveillance Zone
Sep 3 11:02 36.1181 26.6228 11.9 kn 103.9° North Sea Surveillance Zone
Sep 3 10:57 36.1217 26.6044 11.9 kn 104.7° North Sea Surveillance Zone
Sep 3 10:45 36.1311 26.5577 11.8 kn 104.0° North Sea Surveillance Zone
Aug 22 20:11 37.2710 23.6837 11.2 kn 188.8° Southern Black Sea Sanctioned Vessel Zone
Aug 22 20:09 37.2779 23.6847 11.3 kn 185.3° Southern Black Sea Sanctioned Vessel Zone
Aug 22 20:07 37.2819 23.6851 11.3 kn 185.4° Southern Black Sea Sanctioned Vessel Zone
Aug 22 20:06 37.2868 23.6857 11.4 kn 185.0° Southern Black Sea Sanctioned Vessel Zone
Aug 22 20:05 37.2899 23.6860 11.4 kn 185.1° Southern Black Sea Sanctioned Vessel Zone
Aug 22 20:01 37.3025 23.6874 11.4 kn 185.4° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:59 37.3079 23.6880 11.4 kn 185.3° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:54 37.3253 23.6903 11.4 kn 186.1° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:52 37.3316 23.6911 11.4 kn 185.3° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:45 37.3522 23.6922 11.5 kn 182.0° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:41 37.3651 23.6931 11.6 kn 183.5° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:39 37.3732 23.6940 11.6 kn 187.5° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:36 37.3833 23.6958 11.6 kn 188.0° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:35 37.3870 23.6965 11.6 kn 187.9° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:32 37.3946 23.6978 11.5 kn 187.7° Southern Black Sea Sanctioned Vessel Zone
Aug 22 19:31 37.3977 23.6983 11.5 kn 187.1° Southern Black Sea Sanctioned Vessel Zone

Showing 20 of 100 recent positions.

Data Source

Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.

Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.