VELOS AQUARIUS

IMO 9381756

Vessel information

Vessel Name VELOS AQUARIUS
IMO Number 9381756
MMSI 538008652
Vessel Type Tanker
Flag 🇲🇭 MARSHALL ISLANDS
Call Sign V7A2623
Length 183 m
Beam 32 m

Detected Events (100)

Zone Dwell Southern Öresund Surveillance Zone
Oct 28, 2026 07:27 UTC 80.0% ▼
  • Zone: Southern Öresund Surveillance Zone
  • Duration: 4h 54m
  • Data Points: 87 AIS positions
  • Period: 2026-10-28T07:27:37+00:00 to 2026-10-28T12:22:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_007",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 294.80000000000001136868377216160297393798828125,
    "points_in_zone": 87,
    "first_point": {
        "ts": "2026-10-28T07:27:37+00:00",
        "lat": 55.7030316999999968174961395561695098876953125,
        "lon": 12.68102329999999966503310133703052997589111328125
    },
    "last_point": {
        "ts": "2026-10-28T12:22:23+00:00",
        "lat": 55.158358300000003282548277638852596282958984375,
        "lon": 13.8157432999999993938899933709762990474700927734375
    }
}
Methodology: 2026.01.18
Zone Dwell Archipelago Sea Surveillance Zone
Oct 28, 2026 04:00 UTC 80.0% ▼
  • Zone: Archipelago Sea Surveillance Zone
  • Duration: 1h 41m
  • Data Points: 39 AIS positions
  • Period: 2026-10-28T04:00:07+00:00 to 2026-10-28T05:41:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_006",
    "zone_name": "Archipelago Sea Surveillance Zone",
    "dwell_minutes": 101.2000000000000028421709430404007434844970703125,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-10-28T04:00:07+00:00",
        "lat": 56.22169670000000252230165642686188220977783203125,
        "lon": 12.3122150000000001313082975684665143489837646484375
    },
    "last_point": {
        "ts": "2026-10-28T05:41:17+00:00",
        "lat": 55.9816866999999973586454871110618114471435546875,
        "lon": 12.672631700000000165573510457761585712432861328125
    }
}
Methodology: 2026.01.18
Zone Dwell Archipelago Sea Surveillance Zone
Oct 28, 2026 03:01 UTC 80.0% ▼
  • Zone: Archipelago Sea Surveillance Zone
  • Duration: 2h 40m
  • Data Points: 54 AIS positions
  • Period: 2026-10-28T03:01:06+00:00 to 2026-10-28T05:41:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_006",
    "zone_name": "Archipelago Sea Surveillance Zone",
    "dwell_minutes": 160.19999999999998863131622783839702606201171875,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-10-28T03:01:06+00:00",
        "lat": 56.31533329999999892834239290095865726470947265625,
        "lon": 12.16783170000000069421730586327612400054931640625
    },
    "last_point": {
        "ts": "2026-10-28T05:41:17+00:00",
        "lat": 55.9816866999999973586454871110618114471435546875,
        "lon": 12.672631700000000165573510457761585712432861328125
    }
}
Methodology: 2026.01.18
Zone Dwell Archipelago Sea Surveillance Zone
Oct 28, 2026 02:53 UTC 80.0% ▼
  • Zone: Archipelago Sea Surveillance Zone
  • Duration: 2h 48m
  • Data Points: 56 AIS positions
  • Period: 2026-10-28T02:53:16+00:00 to 2026-10-28T05:41:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_006",
    "zone_name": "Archipelago Sea Surveillance Zone",
    "dwell_minutes": 168,
    "points_in_zone": 56,
    "first_point": {
        "ts": "2026-10-28T02:53:16+00:00",
        "lat": 56.327713299999999208012013696134090423583984375,
        "lon": 12.147883300000000161844582180492579936981201171875
    },
    "last_point": {
        "ts": "2026-10-28T05:41:17+00:00",
        "lat": 55.9816866999999973586454871110618114471435546875,
        "lon": 12.672631700000000165573510457761585712432861328125
    }
}
Methodology: 2026.01.18
Ais Gap🛰️✗ Eastern Mediterranean Monitoring Zone
Oct 27, 2026 21:17 UTC 70.0% ▼
  • Gap Duration: 5h 35m
  • Last Seen: 2026-10-27T21:17:37+00:00 at 56.9816, 11.7367 (Zone: Eastern Mediterranean Monitoring Zone)
  • Next Seen: 2026-10-28T02:53:16+00:00 at 56.3277, 12.1479

🛰️ Gap Corroboration

✗ No Imagery

These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.

SAR Imagery (Sentinel-1)

Status: ✗ No SAR coverage

No Sentinel-1 scenes covering corridor and time window

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-10-28T03:00:08.440483+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 335.6000000000000227373675443232059478759765625,
    "last_seen": {
        "ts": "2026-10-27T21:17:37+00:00",
        "lat": 56.98155669999999872743501327931880950927734375,
        "lon": 11.7366749999999999687361196265555918216705322265625,
        "sog": 9.699999999999999289457264239899814128875732421875,
        "zone_id": "discovered_090"
    },
    "next_seen": {
        "ts": "2026-10-28T02:53:16+00:00",
        "lat": 56.327713299999999208012013696134090423583984375,
        "lon": 12.147883300000000161844582180492579936981201171875,
        "zone_ids": [
            "discovered_006"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 56.98155669999999872743501327931880950927734375,
                "lon": 11.7366749999999999687361196265555918216705322265625,
                "ts": "2026-10-27T21:17:37+00:00"
            },
            "end": {
                "lat": 56.327713299999999208012013696134090423583984375,
                "lon": 12.147883300000000161844582180492579936981201171875,
                "ts": "2026-10-28T02:53:16+00:00"
            },
            "bbox": {
                "min_lat": 56.14753300000000280078893410973250865936279296875,
                "min_lon": 11.40888700000000000045474735088646411895751953125,
                "max_lat": 57.1617370000000022400854504667222499847412109375,
                "max_lon": 12.475671999999999428609953611157834529876708984375
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "not_found",
            "notes": "No Sentinel-1 scenes covering corridor and time window"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-10-28T03:00:08.440483+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 20:02 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 1h 1m
  • Data Points: 12 AIS positions
  • Period: 2026-10-27T20:02:28+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 61.60000000000000142108547152020037174224853515625,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-10-27T20:02:28+00:00",
        "lat": 57.14553500000000241243469645269215106964111328125,
        "lon": 11.635703299999999416058926726691424846649169921875
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 19:07 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 1h 56m
  • Data Points: 23 AIS positions
  • Period: 2026-10-27T19:07:48+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 116.2999999999999971578290569595992565155029296875,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-27T19:07:48+00:00",
        "lat": 57.25601830000000092013578978367149829864501953125,
        "lon": 11.560159999999999769215719425119459629058837890625
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 18:01 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 3h 2m
  • Data Points: 39 AIS positions
  • Period: 2026-10-27T18:01:57+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 182.19999999999998863131622783839702606201171875,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-10-27T18:01:57+00:00",
        "lat": 57.39746170000000091704350779764354228973388671875,
        "lon": 11.473268300000000863292370922863483428955078125
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 17:04 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 3h 59m
  • Data Points: 52 AIS positions
  • Period: 2026-10-27T17:04:28+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 239.599999999999994315658113919198513031005859375,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-10-27T17:04:28+00:00",
        "lat": 57.5074182999999976573235471732914447784423828125,
        "lon": 11.351195000000000590034687775187194347381591796875
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 16:04 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 4h 59m
  • Data Points: 65 AIS positions
  • Period: 2026-10-27T16:04:36+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 299.5,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-10-27T16:04:36+00:00",
        "lat": 57.60011829999999832807588973082602024078369140625,
        "lon": 11.179356699999999591454979963600635528564453125
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 15:04 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 5h 59m
  • Data Points: 76 AIS positions
  • Period: 2026-10-27T15:04:56+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 359.19999999999998863131622783839702606201171875,
    "points_in_zone": 76,
    "first_point": {
        "ts": "2026-10-27T15:04:56+00:00",
        "lat": 57.68984830000000130212356452830135822296142578125,
        "lon": 11.0062499999999996447286321199499070644378662109375
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 14:07 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 6h 31m
  • Data Points: 85 AIS positions
  • Period: 2026-10-27T14:33:08+00:00 to 2026-10-27T21:04:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 391,
    "points_in_zone": 85,
    "first_point": {
        "ts": "2026-10-27T14:33:08+00:00",
        "lat": 57.7412599999999969213604344986379146575927734375,
        "lon": 10.9176632999999991824324752087704837322235107421875
    },
    "last_point": {
        "ts": "2026-10-27T21:04:06+00:00",
        "lat": 57.01608499999999679630491300486028194427490234375,
        "lon": 11.71600169999999963010850478895008563995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 13:04 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 6h 31m
  • Data Points: 87 AIS positions
  • Period: 2026-10-27T13:52:27+00:00 to 2026-10-27T20:23:27+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 391,
    "points_in_zone": 87,
    "first_point": {
        "ts": "2026-10-27T13:52:27+00:00",
        "lat": 57.810256699999996499172993935644626617431640625,
        "lon": 10.815393300000000209593054023571312427520751953125
    },
    "last_point": {
        "ts": "2026-10-27T20:23:27+00:00",
        "lat": 57.0968117000000034977347240783274173736572265625,
        "lon": 11.6609616999999996522774381446652114391326904296875
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 12:19 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 6h 32m
  • Data Points: 89 AIS positions
  • Period: 2026-10-27T12:52:56+00:00 to 2026-10-27T19:25:27+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 392.5,
    "points_in_zone": 89,
    "first_point": {
        "ts": "2026-10-27T12:52:56+00:00",
        "lat": 57.81605499999999864257915760390460491180419921875,
        "lon": 10.58338499999999982037479639984667301177978515625
    },
    "last_point": {
        "ts": "2026-10-27T19:25:27+00:00",
        "lat": 57.22108999999999667807060177437961101531982421875,
        "lon": 11.5879282999999997372242432902567088603973388671875
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 11:00 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 6h 27m
  • Data Points: 76 AIS positions
  • Period: 2026-10-27T11:47:57+00:00 to 2026-10-27T18:15:16+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 387.30000000000001136868377216160297393798828125,
    "points_in_zone": 76,
    "first_point": {
        "ts": "2026-10-27T11:47:57+00:00",
        "lat": 57.812309999999996534825186245143413543701171875,
        "lon": 10.246475000000000221689333557151257991790771484375
    },
    "last_point": {
        "ts": "2026-10-27T18:15:16+00:00",
        "lat": 57.36915669999999778383426018990576267242431640625,
        "lon": 11.4918382999999995064399627153761684894561767578125
    }
}
Methodology: 2026.01.18
Zone Dwell Danish Straits/Skagerrak
Oct 27, 2026 10:39 UTC 80.0% ▼
  • Zone: Danish Straits/Skagerrak
  • Duration: 6h 35m
  • Data Points: 74 AIS positions
  • Period: 2026-10-27T10:53:38+00:00 to 2026-10-27T17:29:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_danish_straits",
    "zone_name": "Danish Straits\/Skagerrak",
    "dwell_minutes": 395.5,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-10-27T10:53:38+00:00",
        "lat": 57.80266499999999751935320091433823108673095703125,
        "lon": 10.0748566999999997761960912612266838550567626953125
    },
    "last_point": {
        "ts": "2026-10-27T17:29:08+00:00",
        "lat": 57.46276329999999887832018430344760417938232421875,
        "lon": 11.408950000000000812860889709554612636566162109375
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 21:27 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 1h 26m
  • Data Points: 8 AIS positions
  • Period: 2026-10-25T21:27:39+00:00 to 2026-10-25T22:54:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 86.7000000000000028421709430404007434844970703125,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-10-25T21:27:39+00:00",
        "lat": 51.76022669999999692436176701448857784271240234375,
        "lon": 2.6025133000000000293994162348099052906036376953125
    },
    "last_point": {
        "ts": "2026-10-25T22:54:19+00:00",
        "lat": 51.97343500000000204863681574352085590362548828125,
        "lon": 2.881228300000000075442585512064397335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 20:49 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 2h 5m
  • Data Points: 9 AIS positions
  • Period: 2026-10-25T20:49:00+00:00 to 2026-10-25T22:54:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 125.2999999999999971578290569595992565155029296875,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-10-25T20:49:00+00:00",
        "lat": 51.6769632999999970479620969854295253753662109375,
        "lon": 2.466968300000000002825117917382158339023590087890625
    },
    "last_point": {
        "ts": "2026-10-25T22:54:19+00:00",
        "lat": 51.97343500000000204863681574352085590362548828125,
        "lon": 2.881228300000000075442585512064397335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 17:06 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 5h 48m
  • Data Points: 15 AIS positions
  • Period: 2026-10-25T17:06:05+00:00 to 2026-10-25T22:54:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 348.19999999999998863131622783839702606201171875,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-10-25T17:06:05+00:00",
        "lat": 51.16317169999999947549440548755228519439697265625,
        "lon": 1.7429916999999999216441892713191919028759002685546875
    },
    "last_point": {
        "ts": "2026-10-25T22:54:19+00:00",
        "lat": 51.97343500000000204863681574352085590362548828125,
        "lon": 2.881228300000000075442585512064397335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 16:51 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 6h 3m
  • Data Points: 18 AIS positions
  • Period: 2026-10-25T16:51:03+00:00 to 2026-10-25T22:54:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 363.30000000000001136868377216160297393798828125,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-10-25T16:51:03+00:00",
        "lat": 51.1241117000000002690285327844321727752685546875,
        "lon": 1.6944866999999999013226670285803265869617462158203125
    },
    "last_point": {
        "ts": "2026-10-25T22:54:19+00:00",
        "lat": 51.97343500000000204863681574352085590362548828125,
        "lon": 2.881228300000000075442585512064397335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell Northwest Iberian Sea Surveillance Zone
Oct 25, 2026 12:02 UTC 80.0% ▼
  • Zone: Northwest Iberian Sea Surveillance Zone
  • Duration: 1h 8m
  • Data Points: 16 AIS positions
  • Period: 2026-10-25T12:02:50+00:00 to 2026-10-25T13:10:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_139",
    "zone_name": "Northwest Iberian Sea Surveillance Zone",
    "dwell_minutes": 68,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-10-25T12:02:50+00:00",
        "lat": 50.444878299999999171632225625216960906982421875,
        "lon": 0.6018016999999999949721996017615310847759246826171875
    },
    "last_point": {
        "ts": "2026-10-25T13:10:52+00:00",
        "lat": 50.5195532999999983303496264852583408355712890625,
        "lon": 0.97440669999999995898321003551245667040348052978515625
    }
}
Methodology: 2026.01.18
Zone Dwell Northwest Iberian Sea Surveillance Zone
Oct 25, 2026 11:11 UTC 80.0% ▼
  • Zone: Northwest Iberian Sea Surveillance Zone
  • Duration: 1h 59m
  • Data Points: 27 AIS positions
  • Period: 2026-10-25T11:11:10+00:00 to 2026-10-25T13:10:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_139",
    "zone_name": "Northwest Iberian Sea Surveillance Zone",
    "dwell_minutes": 119.7000000000000028421709430404007434844970703125,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-10-25T11:11:10+00:00",
        "lat": 50.388429999999999608917278237640857696533203125,
        "lon": 0.320411700000000021493207214007270522415637969970703125
    },
    "last_point": {
        "ts": "2026-10-25T13:10:52+00:00",
        "lat": 50.5195532999999983303496264852583408355712890625,
        "lon": 0.97440669999999995898321003551245667040348052978515625
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 09:01 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 1h 15m
  • Data Points: 20 AIS positions
  • Period: 2026-10-25T09:01:59+00:00 to 2026-10-25T10:17:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_133",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 75.400000000000005684341886080801486968994140625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-25T09:01:59+00:00",
        "lat": 50.25436830000000298923623631708323955535888671875,
        "lon": -0.43620829999999999326831812140881083905696868896484375
    },
    "last_point": {
        "ts": "2026-10-25T10:17:21+00:00",
        "lat": 50.3380300000000033833202905952930450439453125,
        "lon": 0.01469499999999999972910558199146180413663387298583984375
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 08:12 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 2h 4m
  • Data Points: 38 AIS positions
  • Period: 2026-10-25T08:12:52+00:00 to 2026-10-25T10:17:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_133",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 124.5,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-10-25T08:12:52+00:00",
        "lat": 50.2052699999999987312548910267651081085205078125,
        "lon": -0.75345669999999997923367800467531196773052215576171875
    },
    "last_point": {
        "ts": "2026-10-25T10:17:21+00:00",
        "lat": 50.3380300000000033833202905952930450439453125,
        "lon": 0.01469499999999999972910558199146180413663387298583984375
    }
}
Methodology: 2026.01.18
Zone Dwell English Channel Surveillance Zone
Oct 25, 2026 07:31 UTC 80.0% ▼
  • Zone: English Channel Surveillance Zone
  • Duration: 2h 46m
  • Data Points: 49 AIS positions
  • Period: 2026-10-25T07:31:03+00:00 to 2026-10-25T10:17:21+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_133",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 166.30000000000001136868377216160297393798828125,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-10-25T07:31:03+00:00",
        "lat": 50.16133169999999807942003826610743999481201171875,
        "lon": -1.0392083000000000847506953505217097699642181396484375
    },
    "last_point": {
        "ts": "2026-10-25T10:17:21+00:00",
        "lat": 50.3380300000000033833202905952930450439453125,
        "lon": 0.01469499999999999972910558199146180413663387298583984375
    }
}
Methodology: 2026.01.18
Zone Dwell Central Atlantic Surveillance Zone
Oct 21, 2026 06:04 UTC 80.0% ▼
  • Zone: Central Atlantic Surveillance Zone
  • Duration: 1h 10m
  • Data Points: 19 AIS positions
  • Period: 2026-10-21T06:04:04+00:00 to 2026-10-21T07:14:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_014",
    "zone_name": "Central Atlantic Surveillance Zone",
    "dwell_minutes": 70.2999999999999971578290569595992565155029296875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-10-21T06:04:04+00:00",
        "lat": 38.99558329999999983783709467388689517974853515625,
        "lon": -9.866730000000000444515535491518676280975341796875
    },
    "last_point": {
        "ts": "2026-10-21T07:14:22+00:00",
        "lat": 39.24280499999999705096342950128018856048583984375,
        "lon": -9.8810783000000004250296115060336887836456298828125
    }
}
Methodology: 2026.01.18
Zone Dwell Central Atlantic Surveillance Zone
Oct 21, 2026 05:04 UTC 80.0% ▼
  • Zone: Central Atlantic Surveillance Zone
  • Duration: 2h 10m
  • Data Points: 41 AIS positions
  • Period: 2026-10-21T05:04:23+00:00 to 2026-10-21T07:14:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_014",
    "zone_name": "Central Atlantic Surveillance Zone",
    "dwell_minutes": 130,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-10-21T05:04:23+00:00",
        "lat": 38.77836330000000231166268349625170230865478515625,
        "lon": -9.8555749999999999744204615126363933086395263671875
    },
    "last_point": {
        "ts": "2026-10-21T07:14:22+00:00",
        "lat": 39.24280499999999705096342950128018856048583984375,
        "lon": -9.8810783000000004250296115060336887836456298828125
    }
}
Methodology: 2026.01.18
Zone Dwell Central Atlantic Surveillance Zone
Oct 21, 2026 04:00 UTC 80.0% ▼
  • Zone: Central Atlantic Surveillance Zone
  • Duration: 3h 14m
  • Data Points: 66 AIS positions
  • Period: 2026-10-21T04:00:03+00:00 to 2026-10-21T07:14:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_014",
    "zone_name": "Central Atlantic Surveillance Zone",
    "dwell_minutes": 194.30000000000001136868377216160297393798828125,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-10-21T04:00:03+00:00",
        "lat": 38.54559499999999871988620725460350513458251953125,
        "lon": -9.819765000000000298996383207850158214569091796875
    },
    "last_point": {
        "ts": "2026-10-21T07:14:22+00:00",
        "lat": 39.24280499999999705096342950128018856048583984375,
        "lon": -9.8810783000000004250296115060336887836456298828125
    }
}
Methodology: 2026.01.18
Zone Dwell Central Atlantic Surveillance Zone
Oct 21, 2026 03:33 UTC 80.0% ▼
  • Zone: Central Atlantic Surveillance Zone
  • Duration: 3h 41m
  • Data Points: 71 AIS positions
  • Period: 2026-10-21T03:33:04+00:00 to 2026-10-21T07:14:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_014",
    "zone_name": "Central Atlantic Surveillance Zone",
    "dwell_minutes": 221.30000000000001136868377216160297393798828125,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-10-21T03:33:04+00:00",
        "lat": 38.4494116999999988593117450363934040069580078125,
        "lon": -9.804429999999999978399500832892954349517822265625
    },
    "last_point": {
        "ts": "2026-10-21T07:14:22+00:00",
        "lat": 39.24280499999999705096342950128018856048583984375,
        "lon": -9.8810783000000004250296115060336887836456298828125
    }
}
Methodology: 2026.01.18
Zone Dwell North Sea Surveillance Zone
Oct 13, 2026 18:00 UTC 80.0% ▼
  • Zone: North Sea Surveillance Zone
  • Duration: 1h 36m
  • Data Points: 24 AIS positions
  • Period: 2026-10-13T18:00:34+00:00 to 2026-10-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_126",
    "zone_name": "North Sea Surveillance Zone",
    "dwell_minutes": 96.599999999999994315658113919198513031005859375,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-13T18:00:34+00:00",
        "lat": 37.777978300000000899672158993780612945556640625,
        "lon": 24.366203299999998677094481536187231540679931640625
    },
    "last_point": {
        "ts": "2026-10-13T19:37:12+00:00",
        "lat": 37.58749499999999699184627388603985309600830078125,
        "lon": 24.025040000000000617319528828375041484832763671875
    }
}
Methodology: 2026.01.18
Zone Dwell North Sea Surveillance Zone
Oct 13, 2026 17:25 UTC 80.0% ▼
  • Zone: North Sea Surveillance Zone
  • Duration: 2h 11m
  • Data Points: 27 AIS positions
  • Period: 2026-10-13T17:25:43+00:00 to 2026-10-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_126",
    "zone_name": "North Sea Surveillance Zone",
    "dwell_minutes": 131.5,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-10-13T17:25:43+00:00",
        "lat": 37.8493849999999980582288117147982120513916015625,
        "lon": 24.501716699999999349302015616558492183685302734375
    },
    "last_point": {
        "ts": "2026-10-13T19:37:12+00:00",
        "lat": 37.58749499999999699184627388603985309600830078125,
        "lon": 24.025040000000000617319528828375041484832763671875
    }
}
Methodology: 2026.01.18
Zone Dwell North Sea Surveillance Zone
Oct 13, 2026 16:00 UTC 80.0% ▼
  • Zone: North Sea Surveillance Zone
  • Duration: 3h 36m
  • Data Points: 28 AIS positions
  • Period: 2026-10-13T16:00:44+00:00 to 2026-10-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_126",
    "zone_name": "North Sea Surveillance Zone",
    "dwell_minutes": 216.5,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-10-13T16:00:44+00:00",
        "lat": 38.11261830000000117024683277122676372528076171875,
        "lon": 24.72431999999999874262357479892671108245849609375
    },
    "last_point": {
        "ts": "2026-10-13T19:37:12+00:00",
        "lat": 37.58749499999999699184627388603985309600830078125,
        "lon": 24.025040000000000617319528828375041484832763671875
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Oct 11, 2026 12:32 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 4h 39m
  • Data Points: 20 AIS positions
  • Period: 2026-10-11T12:32:39+00:00 to 2026-10-11T17:12:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 279.3999999999999772626324556767940521240234375,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-11T12:32:39+00:00",
        "lat": 41.4015332999999969842974678613245487213134765625,
        "lon": 29.063816700000000281534084933809936046600341796875
    },
    "last_point": {
        "ts": "2026-10-11T17:12:05+00:00",
        "lat": 40.87400000000000233058017329312860965728759765625,
        "lon": 28.5484466999999995096004568040370941162109375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Oct 11, 2026 08:58 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 1h 37m
  • Data Points: 9 AIS positions
  • Period: 2026-10-11T08:58:59+00:00 to 2026-10-11T10:36:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 97.7000000000000028421709430404007434844970703125,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-10-11T08:58:59+00:00",
        "lat": 41.30798999999999665533323423005640506744384765625,
        "lon": 29.072816700000000622594598098658025264739990234375
    },
    "last_point": {
        "ts": "2026-10-11T10:36:42+00:00",
        "lat": 41.37922669999999669698809157125651836395263671875,
        "lon": 29.032836700000000718091541784815490245819091796875
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Oct 11, 2026 08:58 UTC 80.0% ▼
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 1h 37m
  • Data Points: 9 AIS positions
  • Period: 2026-10-11T08:58:59+00:00 to 2026-10-11T10:36:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 97.7000000000000028421709430404007434844970703125,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-10-11T08:58:59+00:00",
        "lat": 41.30798999999999665533323423005640506744384765625,
        "lon": 29.072816700000000622594598098658025264739990234375
    },
    "last_point": {
        "ts": "2026-10-11T10:36:42+00:00",
        "lat": 41.37922669999999669698809157125651836395263671875,
        "lon": 29.032836700000000718091541784815490245819091796875
    }
}
Methodology: 2026.01.18
Zone Dwell Central Atlantic Monitoring Zone
Oct 7, 2026 22:20 UTC 80.0% ▼
  • Zone: Central Atlantic Monitoring Zone
  • Duration: 1h 53m
  • Data Points: 14 AIS positions
  • Period: 2026-10-07T22:20:00+00:00 to 2026-10-08T00:12:58+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_049",
    "zone_name": "Central Atlantic Monitoring Zone",
    "dwell_minutes": 113,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-10-07T22:20:00+00:00",
        "lat": 42.32324330000000145446392707526683807373046875,
        "lon": 29.0779466999999982590452418662607669830322265625
    },
    "last_point": {
        "ts": "2026-10-08T00:12:58+00:00",
        "lat": 42.7172632999999990488504408858716487884521484375,
        "lon": 29.011391700000000781756170908920466899871826171875
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Oct 7, 2026 20:01 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 2h 24m
  • Data Points: 19 AIS positions
  • Period: 2026-10-07T20:01:58+00:00 to 2026-10-07T22:26:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_038",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 144.19999999999998863131622783839702606201171875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-10-07T20:01:58+00:00",
        "lat": 41.8435649999999981218934408389031887054443359375,
        "lon": 29.151966699999999121928340173326432704925537109375
    },
    "last_point": {
        "ts": "2026-10-07T22:26:08+00:00",
        "lat": 42.3445116999999981999280862510204315185546875,
        "lon": 29.074645000000000294448909698985517024993896484375
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Oct 7, 2026 19:08 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 3h 17m
  • Data Points: 23 AIS positions
  • Period: 2026-10-07T19:08:18+00:00 to 2026-10-07T22:26:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_038",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 197.80000000000001136868377216160297393798828125,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-07T19:08:18+00:00",
        "lat": 41.65996169999999665378709323704242706298828125,
        "lon": 29.18112670000000008485585567541420459747314453125
    },
    "last_point": {
        "ts": "2026-10-07T22:26:08+00:00",
        "lat": 42.3445116999999981999280862510204315185546875,
        "lon": 29.074645000000000294448909698985517024993896484375
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Oct 7, 2026 18:52 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 3h 33m
  • Data Points: 24 AIS positions
  • Period: 2026-10-07T18:52:29+00:00 to 2026-10-07T22:26:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_038",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 213.69999999999998863131622783839702606201171875,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-07T18:52:29+00:00",
        "lat": 41.60505169999999708352333982475101947784423828125,
        "lon": 29.180081699999998789962774026207625865936279296875
    },
    "last_point": {
        "ts": "2026-10-07T22:26:08+00:00",
        "lat": 42.3445116999999981999280862510204315185546875,
        "lon": 29.074645000000000294448909698985517024993896484375
    }
}
Methodology: 2026.01.18
Zone Dwell Gulf of Oman Sanctioned Vessel Monitoring Zone
Oct 7, 2026 18:52 UTC 80.0% ▼
  • Zone: Gulf of Oman Sanctioned Vessel Monitoring Zone
  • Duration: 1h 10m
  • Data Points: 7 AIS positions
  • Period: 2026-10-07T18:52:29+00:00 to 2026-10-07T20:02:58+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_030",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 70.5,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-10-07T18:52:29+00:00",
        "lat": 41.60505169999999708352333982475101947784423828125,
        "lon": 29.180081699999998789962774026207625865936279296875
    },
    "last_point": {
        "ts": "2026-10-07T20:02:58+00:00",
        "lat": 41.8470166999999975132595864124596118927001953125,
        "lon": 29.1512799999999998590283212251961231231689453125
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Oct 7, 2026 03:07 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 2h 24m
  • Data Points: 4 AIS positions
  • Period: 2026-10-07T03:07:18+00:00 to 2026-10-07T05:31:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 144,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-10-07T03:07:18+00:00",
        "lat": 40.82784500000000349473339156247675418853759765625,
        "lon": 28.698606699999999136707629077136516571044921875
    },
    "last_point": {
        "ts": "2026-10-07T05:31:19+00:00",
        "lat": 40.81343170000000242225723923183977603912353515625,
        "lon": 28.931373300000000625686880084685981273651123046875
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Oct 7, 2026 02:11 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 3h 19m
  • Data Points: 11 AIS positions
  • Period: 2026-10-07T02:11:59+00:00 to 2026-10-07T05:31:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 199.30000000000001136868377216160297393798828125,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-10-07T02:11:59+00:00",
        "lat": 40.813946700000002465458237566053867340087890625,
        "lon": 28.5177182999999985213435138575732707977294921875
    },
    "last_point": {
        "ts": "2026-10-07T05:31:19+00:00",
        "lat": 40.81343170000000242225723923183977603912353515625,
        "lon": 28.931373300000000625686880084685981273651123046875
    }
}
Methodology: 2026.01.18
Zone Dwell North Sea Monitoring Zone
Oct 5, 2026 01:38 UTC 80.0% ▼
  • Zone: North Sea Monitoring Zone
  • Duration: 2h 18m
  • Data Points: 6 AIS positions
  • Period: 2026-10-05T01:38:25+00:00 to 2026-10-05T03:57:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_122",
    "zone_name": "North Sea Monitoring Zone",
    "dwell_minutes": 138.69999999999998863131622783839702606201171875,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-10-05T01:38:25+00:00",
        "lat": 37.29798670000000271329554379917681217193603515625,
        "lon": 26.208516700000000554382495465688407421112060546875
    },
    "last_point": {
        "ts": "2026-10-05T03:57:05+00:00",
        "lat": 37.5479950000000002319211489520967006683349609375,
        "lon": 25.7407816999999994322934071533381938934326171875
    }
}
Methodology: 2026.01.18
Zone Dwell Barents Sea Surveillance Zone
Oct 4, 2026 21:39 UTC 80.0% ▼
  • Zone: Barents Sea Surveillance Zone
  • Duration: 3h 59m
  • Data Points: 2 AIS positions
  • Period: 2026-10-04T21:39:15+00:00 to 2026-10-05T01:38:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_124",
    "zone_name": "Barents Sea Surveillance Zone",
    "dwell_minutes": 239.19999999999998863131622783839702606201171875,
    "points_in_zone": 2,
    "first_point": {
        "ts": "2026-10-04T21:39:15+00:00",
        "lat": 36.66957500000000180762071977369487285614013671875,
        "lon": 26.706383299999998826024238951504230499267578125
    },
    "last_point": {
        "ts": "2026-10-05T01:38:25+00:00",
        "lat": 37.29798670000000271329554379917681217193603515625,
        "lon": 26.208516700000000554382495465688407421112060546875
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 19, 2026 03:17 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 2h 27m
  • Data Points: 3 AIS positions
  • Period: 2026-08-19T03:17:17+00:00 to 2026-08-19T05:44:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 147,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-08-19T03:17:17+00:00",
        "lat": 34.710156699999998863859218545258045196533203125,
        "lon": 33.32242670000000117624949780292809009552001953125
    },
    "last_point": {
        "ts": "2026-08-19T05:44:19+00:00",
        "lat": 34.7101516999999972767909639514982700347900390625,
        "lon": 33.322411700000003520472091622650623321533203125
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 19, 2026 01:38 UTC 75/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 321 meters
  • Average Distance: 323 meters
  • Duration: 1h 39m
  • Period: 2026-08-19T01:38:18+00:00 to 2026-08-19T03:17:17+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 321m, avg 323m) for 99 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 321m, avg 323m
Duration20/25Duration 99 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-19T03:45:04.169412+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 320.80000000000001136868377216160297393798828125,
    "avg_distance_m": 323,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 99,
    "overlap_duration_s": 5939,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-19T01:38:18+00:00",
        "end": "2026-08-19T03:17:17+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 321m, avg 323m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 99 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 321m, avg 323m) for 99 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": 34.70912460000000265836206381209194660186767578125,
            "lon": 33.321179999999998244675225578248500823974609375
        },
        "time_window": {
            "start_ts": "2026-08-19T01:38:18+00:00",
            "end_ts": "2026-08-19T03:17:17+00:00"
        },
        "searched_at": "2026-08-19T03:45:04.169412+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 19, 2026 01:38 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 4h 6m
  • Data Points: 4 AIS positions
  • Period: 2026-08-19T01:38:18+00:00 to 2026-08-19T05:44:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 246,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-08-19T01:38:18+00:00",
        "lat": 34.7101617000000004509274731390178203582763671875,
        "lon": 33.32241330000000090194589574821293354034423828125
    },
    "last_point": {
        "ts": "2026-08-19T05:44:19+00:00",
        "lat": 34.7101516999999972767909639514982700347900390625,
        "lon": 33.322411700000003520472091622650623321533203125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 22:17 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5 hours
  • Data Points: 3 AIS positions
  • Period: 2026-08-18T22:17:11+00:00 to 2026-08-19T03:17:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 300.1000000000000227373675443232059478759765625,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-08-18T22:17:11+00:00",
        "lat": 34.7101583000000033507603802718222141265869140625,
        "lon": 33.322401700000000346335582435131072998046875
    },
    "last_point": {
        "ts": "2026-08-19T03:17:17+00:00",
        "lat": 34.710156699999998863859218545258045196533203125,
        "lon": 33.32242670000000117624949780292809009552001953125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 21:47 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 30m
  • Data Points: 4 AIS positions
  • Period: 2026-08-18T21:47:09+00:00 to 2026-08-19T03:17:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 330.1000000000000227373675443232059478759765625,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-08-18T21:47:09+00:00",
        "lat": 34.71018000000000114368958747945725917816162109375,
        "lon": 33.32240829999999931487764115445315837860107421875
    },
    "last_point": {
        "ts": "2026-08-19T03:17:17+00:00",
        "lat": 34.710156699999998863859218545258045196533203125,
        "lon": 33.32242670000000117624949780292809009552001953125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 20:05 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 6 AIS positions
  • Period: 2026-08-18T20:44:14+00:00 to 2026-08-19T03:17:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-08-18T20:44:14+00:00",
        "lat": 34.71017669999999810670487931929528713226318359375,
        "lon": 33.32241499999999945202944218181073665618896484375
    },
    "last_point": {
        "ts": "2026-08-19T03:17:17+00:00",
        "lat": 34.710156699999998863859218545258045196533203125,
        "lon": 33.32242670000000117624949780292809009552001953125
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 18:38 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 3h 39m
  • Data Points: 9 AIS positions
  • Period: 2026-08-18T18:38:09+00:00 to 2026-08-18T22:17:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 219,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-08-18T18:38:09+00:00",
        "lat": 34.7101949999999987994669936597347259521484375,
        "lon": 33.322401700000000346335582435131072998046875
    },
    "last_point": {
        "ts": "2026-08-18T22:17:11+00:00",
        "lat": 34.7101583000000033507603802718222141265869140625,
        "lon": 33.322401700000000346335582435131072998046875
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 18, 2026 16:19 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 317 meters
  • Average Distance: 322 meters
  • Duration: 4h 24m
  • Period: 2026-08-18T16:19:23+00:00 to 2026-08-18T20:44:14+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 317m, avg 322m) for 265 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 322m
Duration25/25Duration 265 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-18T22:00:21.070019+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316.80000000000001136868377216160297393798828125,
    "avg_distance_m": 321.5,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 264.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 15891,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T16:19:23+00:00",
        "end": "2026-08-18T20:44:14+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 322m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 265 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 317m, avg 322m) for 265 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": 34.70914570000000054506017477251589298248291015625,
            "lon": 33.3211814000000003943569026887416839599609375
        },
        "time_window": {
            "start_ts": "2026-08-18T16:19:23+00:00",
            "end_ts": "2026-08-18T20:44:14+00:00"
        },
        "searched_at": "2026-08-18T22:00:21.070019+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 16:19 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 57m
  • Data Points: 11 AIS positions
  • Period: 2026-08-18T16:19:23+00:00 to 2026-08-18T22:17:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 357.80000000000001136868377216160297393798828125,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-18T16:19:23+00:00",
        "lat": 34.71016670000000203799572773277759552001953125,
        "lon": 33.322423299999996970655047334730625152587890625
    },
    "last_point": {
        "ts": "2026-08-18T22:17:11+00:00",
        "lat": 34.7101583000000033507603802718222141265869140625,
        "lon": 33.322401700000000346335582435131072998046875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 16:19 UTC 75.0% ▼
  • Duration: 5h 57m
  • Radius: 4 meters
  • Data Points: 11 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 357.80000000000001136868377216160297393798828125,
    "points": 11,
    "centroid": {
        "lat": 34.710176672727271807161741890013217926025390625,
        "lon": 33.322408645454544284802977927029132843017578125
    },
    "bbox": {
        "min_lat": 34.7101583000000033507603802718222141265869140625,
        "min_lon": 33.3223966999999987592673278413712978363037109375,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.32242500000000262616595136933028697967529296875
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 18, 2026 15:22 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 317 meters
  • Average Distance: 321 meters
  • Duration: 4h 42m
  • Period: 2026-08-18T15:22:20+00:00 to 2026-08-18T20:05:15+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 317m, avg 321m) for 283 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
Duration25/25Duration 283 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316.80000000000001136868377216160297393798828125,
    "avg_distance_m": 321.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 282.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 16975,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T15:22:20+00:00",
        "end": "2026-08-18T20:05:15+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "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 321m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 283 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 317m, avg 321m) for 283 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
Aug 18, 2026 15:22 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 24m
  • Data Points: 11 AIS positions
  • Period: 2026-08-18T15:22:20+00:00 to 2026-08-18T21:47:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 384.80000000000001136868377216160297393798828125,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-18T15:22:20+00:00",
        "lat": 34.71017499999999955662133288569748401641845703125,
        "lon": 33.32243170000000276331775239668786525726318359375
    },
    "last_point": {
        "ts": "2026-08-18T21:47:09+00:00",
        "lat": 34.71018000000000114368958747945725917816162109375,
        "lon": 33.32240829999999931487764115445315837860107421875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 15:22 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 4 meters
  • Data Points: 11 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 384.80000000000001136868377216160297393798828125,
    "points": 11,
    "centroid": {
        "lat": 34.710178190909090290006133727729320526123046875,
        "lon": 33.3224113727272737150997272692620754241943359375
    },
    "bbox": {
        "min_lat": 34.710160000000001900843926705420017242431640625,
        "min_lon": 33.3223966999999987592673278413712978363037109375,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.32243170000000276331775239668786525726318359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 14:13 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 15m
  • Data Points: 11 AIS positions
  • Period: 2026-08-18T14:34:29+00:00 to 2026-08-18T20:50:16+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 375.80000000000001136868377216160297393798828125,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-18T14:34:29+00:00",
        "lat": 34.7101583000000033507603802718222141265869140625,
        "lon": 33.3223933000000016591002349741756916046142578125
    },
    "last_point": {
        "ts": "2026-08-18T20:50:16+00:00",
        "lat": 34.71016670000000203799572773277759552001953125,
        "lon": 33.322401700000000346335582435131072998046875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 14:13 UTC 75.0% ▼
  • Duration: 6h 15m
  • Radius: 4 meters
  • Data Points: 11 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 375.80000000000001136868377216160297393798828125,
    "points": 11,
    "centroid": {
        "lat": 34.7101762181818145336364977993071079254150390625,
        "lon": 33.32241000909090899995135259814560413360595703125
    },
    "bbox": {
        "min_lat": 34.7101583000000033507603802718222141265869140625,
        "min_lon": 33.3223933000000016591002349741756916046142578125,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.32243170000000276331775239668786525726318359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 18, 2026 12:43 UTC 75/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 318 meters
  • Average Distance: 322 meters
  • Duration: 1h 33m
  • Period: 2026-08-18T12:43:20+00:00 to 2026-08-18T14:16:26+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 93 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 322m
Duration20/25Duration 93 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
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: 2026-08-18T18:30:04.072820+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.80000000000001136868377216160297393798828125,
    "avg_distance_m": 321.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 93.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 5586,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T12:43:20+00:00",
        "end": "2026-08-18T14:16:26+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 318m, avg 322m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 93 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 93 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": 34.70913110000000045829438022337853908538818359375,
            "lon": 33.3211778000000009569703252054750919342041015625
        },
        "time_window": {
            "start_ts": "2026-08-18T12:43:20+00:00",
            "end_ts": "2026-08-18T14:16:26+00:00"
        },
        "searched_at": "2026-08-18T18:30:04.072820+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 12:25 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 11 AIS positions
  • Period: 2026-08-18T12:25:28+00:00 to 2026-08-18T18:59:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 393.69999999999998863131622783839702606201171875,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-18T12:25:28+00:00",
        "lat": 34.71017499999999955662133288569748401641845703125,
        "lon": 33.322398300000003246168489567935466766357421875
    },
    "last_point": {
        "ts": "2026-08-18T18:59:09+00:00",
        "lat": 34.71016999999999796955307829193770885467529296875,
        "lon": 33.32240829999999931487764115445315837860107421875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 12:25 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 4 meters
  • Data Points: 11 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 393.69999999999998863131622783839702606201171875,
    "points": 11,
    "centroid": {
        "lat": 34.710176963636371283428161405026912689208984375,
        "lon": 33.32240666363636449887053458951413631439208984375
    },
    "bbox": {
        "min_lat": 34.7101483000000001766238710843026638031005859375,
        "min_lon": 33.3223899999999986221155268140137195587158203125,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.32243170000000276331775239668786525726318359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 18, 2026 11:07 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 318 meters
  • Average Distance: 322 meters
  • Duration: 3h 9m
  • Period: 2026-08-18T11:07:25+00:00 to 2026-08-18T14:16:26+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 189 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 322m
Duration25/25Duration 189 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: 2026-08-18T17:45:01.542728+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.80000000000001136868377216160297393798828125,
    "avg_distance_m": 321.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.5,
    "duration_minutes": 189,
    "overlap_duration_s": 11341,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T11:07:25+00:00",
        "end": "2026-08-18T14:16:26+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "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 322m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 189 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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 189 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": 34.70913469999999989568095770664513111114501953125,
            "lon": 33.32117759999999861975084058940410614013671875
        },
        "time_window": {
            "start_ts": "2026-08-18T11:07:25+00:00",
            "end_ts": "2026-08-18T14:16:26+00:00"
        },
        "searched_at": "2026-08-18T17:45:01.542728+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 11:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5h 17m
  • Data Points: 11 AIS positions
  • Period: 2026-08-18T11:07:25+00:00 to 2026-08-18T16:25:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 317.8999999999999772626324556767940521240234375,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-18T11:07:25+00:00",
        "lat": 34.7101933000000002493834472261369228363037109375,
        "lon": 33.3224050000000033833202905952930450439453125
    },
    "last_point": {
        "ts": "2026-08-18T16:25:19+00:00",
        "lat": 34.71018500000000273075784207321703433990478515625,
        "lon": 33.322411700000003520472091622650623321533203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 11:07 UTC 75.0% ▼
  • Duration: 5h 17m
  • Radius: 3 meters
  • Data Points: 11 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 317.8999999999999772626324556767940521240234375,
    "points": 11,
    "centroid": {
        "lat": 34.71017317272727353838490671478211879730224609375,
        "lon": 33.3224057545454570572474040091037750244140625
    },
    "bbox": {
        "min_lat": 34.7101483000000001766238710843026638031005859375,
        "min_lon": 33.3223899999999986221155268140137195587158203125,
        "max_lat": 34.7101933000000002493834472261369228363037109375,
        "max_lon": 33.32243170000000276331775239668786525726318359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 10:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 20m
  • Data Points: 18 AIS positions
  • Period: 2026-08-18T10:04:25+00:00 to 2026-08-18T16:25:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 380.8999999999999772626324556767940521240234375,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-08-18T10:04:25+00:00",
        "lat": 34.7102399999999988722265698015689849853515625,
        "lon": 33.32240829999999931487764115445315837860107421875
    },
    "last_point": {
        "ts": "2026-08-18T16:25:19+00:00",
        "lat": 34.71018500000000273075784207321703433990478515625,
        "lon": 33.322411700000003520472091622650623321533203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 10:04 UTC 75.0% ▼
  • Duration: 6h 20m
  • Radius: 7 meters
  • Data Points: 18 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 7.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 380.8999999999999772626324556767940521240234375,
    "points": 18,
    "centroid": {
        "lat": 34.7101765666666750576041522435843944549560546875,
        "lon": 33.3224029611111092208375339396297931671142578125
    },
    "bbox": {
        "min_lat": 34.7101449999999971396391629241406917572021484375,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.7102399999999988722265698015689849853515625,
        "max_lon": 33.32243170000000276331775239668786525726318359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 18, 2026 10:03 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 318 meters
  • Average Distance: 322 meters
  • Duration: 4h 12m
  • Period: 2026-08-18T10:04:25+00:00 to 2026-08-18T14:16:26+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) 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 318m, avg 322m
Duration25/25Duration 252 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-18T16:15:04.702257+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.80000000000001136868377216160297393798828125,
    "avg_distance_m": 321.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "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": "2026-08-18T10:04:25+00:00",
        "end": "2026-08-18T14:16:26+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "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 322m"
            },
            "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 \u00b13m"
            },
            "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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) 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."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70914119999999769561327411793172359466552734375,
            "lon": 33.321175699999997732447809539735317230224609375
        },
        "time_window": {
            "start_ts": "2026-08-18T10:03:53+00:00",
            "end_ts": "2026-08-18T14:16:26+00:00"
        },
        "searched_at": "2026-08-18T16:15:04.702257+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 18, 2026 09:21 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 318 meters
  • Average Distance: 322 meters
  • Duration: 4h 21m
  • Period: 2026-08-18T09:55:23+00:00 to 2026-08-18T14:16:26+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 261 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 322m
Duration25/25Duration 261 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.80000000000001136868377216160297393798828125,
    "avg_distance_m": 322,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 261.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 15663,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T09:55:23+00:00",
        "end": "2026-08-18T14:16:26+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 318m, avg 322m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 261 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 261 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
Aug 18, 2026 09:16 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 29m
  • Data Points: 19 AIS positions
  • Period: 2026-08-18T09:55:23+00:00 to 2026-08-18T16:25:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 389.8999999999999772626324556767940521240234375,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-08-18T09:55:23+00:00",
        "lat": 34.7102416999999974223101162351667881011962890625,
        "lon": 33.322411700000003520472091622650623321533203125
    },
    "last_point": {
        "ts": "2026-08-18T16:25:19+00:00",
        "lat": 34.71018500000000273075784207321703433990478515625,
        "lon": 33.322411700000003520472091622650623321533203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 09:16 UTC 75.0% ▼
  • Duration: 6h 29m
  • Radius: 7 meters
  • Data Points: 19 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 6.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 389.8999999999999772626324556767940521240234375,
    "points": 19,
    "centroid": {
        "lat": 34.71017999473684767508530057966709136962890625,
        "lon": 33.3224034210526269816909916698932647705078125
    },
    "bbox": {
        "min_lat": 34.7101449999999971396391629241406917572021484375,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.7102416999999974223101162351667881011962890625,
        "max_lon": 33.32243170000000276331775239668786525726318359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 08:16 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 24m
  • Data Points: 22 AIS positions
  • Period: 2026-08-18T08:58:18+00:00 to 2026-08-18T15:22:20+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-08-18T08:58:18+00:00",
        "lat": 34.7101516999999972767909639514982700347900390625,
        "lon": 33.3224416999999988320269039832055568695068359375
    },
    "last_point": {
        "ts": "2026-08-18T15:22:20+00:00",
        "lat": 34.71017499999999955662133288569748401641845703125,
        "lon": 33.32243170000000276331775239668786525726318359375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 08:16 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 7 meters
  • Data Points: 22 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 7.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 384,
    "points": 22,
    "centroid": {
        "lat": 34.71017795000000916161297936923801898956298828125,
        "lon": 33.3224067409091020408595795743167400360107421875
    },
    "bbox": {
        "min_lat": 34.7101449999999971396391629241406917572021484375,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.7102416999999974223101162351667881011962890625,
        "max_lon": 33.3224416999999988320269039832055568695068359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 07:28 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 18m
  • Data Points: 22 AIS positions
  • Period: 2026-08-18T07:58:16+00:00 to 2026-08-18T14:16:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 378.19999999999998863131622783839702606201171875,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-08-18T07:58:16+00:00",
        "lat": 34.71013169999999803394530317746102809906005859375,
        "lon": 33.32242500000000262616595136933028697967529296875
    },
    "last_point": {
        "ts": "2026-08-18T14:16:26+00:00",
        "lat": 34.710188299999998662315192632377147674560546875,
        "lon": 33.32241499999999945202944218181073665618896484375
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 07:28 UTC 75.0% ▼
  • Duration: 6h 18m
  • Radius: 7 meters
  • Data Points: 22 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 7.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 378.19999999999998863131622783839702606201171875,
    "points": 22,
    "centroid": {
        "lat": 34.7101759818181818673110683448612689971923828125,
        "lon": 33.32240727272728264551915344782173633575439453125
    },
    "bbox": {
        "min_lat": 34.71013169999999803394530317746102809906005859375,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.7102416999999974223101162351667881011962890625,
        "max_lon": 33.3224416999999988320269039832055568695068359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 18, 2026 07:18 UTC 70/100 ▼
Vessel A: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
Vessel B: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
  • Minimum Distance: 320 meters
  • Average Distance: 322 meters
  • Duration: 1h 6m
  • Period: 2026-08-18T07:18:51+00:00 to 2026-08-18T08:24:52+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 (AKRISIOS and VELOS AQUARIUS) maintained close proximity (min 320m, avg 322m) for 66 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 320m, avg 322m
Duration15/25Duration 66 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 319.6000000000000227373675443232059478759765625,
    "avg_distance_m": 321.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 66,
    "overlap_duration_s": 3961,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T07:18:51+00:00",
        "end": "2026-08-18T08:24:52+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 320m, avg 322m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 66 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AKRISIOS and VELOS AQUARIUS) maintained close proximity (min 320m, avg 322m) for 66 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
Aug 18, 2026 04:10 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 15 AIS positions
  • Period: 2026-08-18T04:10:17+00:00 to 2026-08-18T10:40:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-08-18T04:10:17+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32238499999999703504727222025394439697265625
    },
    "last_point": {
        "ts": "2026-08-18T10:40:24+00:00",
        "lat": 34.71018169999999969377313391305506229400634765625,
        "lon": 33.32238000000000255340637522749602794647216796875
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 04:10 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 7 meters
  • Data Points: 15 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 7.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 15,
    "centroid": {
        "lat": 34.7101753333333391537962597794830799102783203125,
        "lon": 33.32240999999999786496118758805096149444580078125
    },
    "bbox": {
        "min_lat": 34.71013169999999803394530317746102809906005859375,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.7102416999999974223101162351667881011962890625,
        "max_lon": 33.3224416999999988320269039832055568695068359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 18, 2026 03:10 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 321 meters
  • Duration: 5h 6m
  • Period: 2026-08-18T03:10:16+00:00 to 2026-08-18T08:16:19+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 321m) for 306 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 321m
Duration25/25Duration 306 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-18T10:00:10.524836+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.5,
    "avg_distance_m": 321.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 306.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 18363,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T03:10:16+00:00",
        "end": "2026-08-18T08:16:19+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 316m, avg 321m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 306 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 321m) for 306 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": 34.709128800000002001979737542569637298583984375,
            "lon": 33.3211782999999996945916791446506977081298828125
        },
        "time_window": {
            "start_ts": "2026-08-18T03:10:16+00:00",
            "end_ts": "2026-08-18T08:16:19+00:00"
        },
        "searched_at": "2026-08-18T10:00:10.524836+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 03:10 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 14 AIS positions
  • Period: 2026-08-18T03:55:23+00:00 to 2026-08-18T10:22:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-08-18T03:55:23+00:00",
        "lat": 34.71016670000000203799572773277759552001953125,
        "lon": 33.322395000000000209183781407773494720458984375
    },
    "last_point": {
        "ts": "2026-08-18T10:22:24+00:00",
        "lat": 34.7101832999999970752469380386173725128173828125,
        "lon": 33.3223933000000016591002349741756916046142578125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 03:10 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 7 meters
  • Data Points: 14 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 7.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 387,
    "points": 14,
    "centroid": {
        "lat": 34.710174764285710580224986188113689422607421875,
        "lon": 33.32241202142856906220913515426218509674072265625
    },
    "bbox": {
        "min_lat": 34.71013169999999803394530317746102809906005859375,
        "min_lon": 33.32238499999999703504727222025394439697265625,
        "max_lat": 34.7102416999999974223101162351667881011962890625,
        "max_lon": 33.3224416999999988320269039832055568695068359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts🛰️✗ Eastern Mediterranean Surveillance Zone
Aug 18, 2026 02:46 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 321 meters
  • Duration: 5h 30m
  • Period: 2026-08-18T02:46:14+00:00 to 2026-08-18T08:16:19+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 320m) for 330 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
Duration25/25Duration 330 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
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: 2026-08-18T08:45:01.907518+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.5,
    "avg_distance_m": 320.5,
    "distance_consistency_m": 3.5,
    "duration_minutes": 330.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 19805,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T02:46:14+00:00",
        "end": "2026-08-18T08:16:19+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 316m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 330 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 320m) for 330 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": 34.70912969999999830861270311288535594940185546875,
            "lon": 33.3211763999999988072886480949819087982177734375
        },
        "time_window": {
            "start_ts": "2026-08-18T02:46:14+00:00",
            "end_ts": "2026-08-18T08:16:19+00:00"
        },
        "searched_at": "2026-08-18T08:45:01.907518+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 18, 2026 02:22 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 13 AIS positions
  • Period: 2026-08-18T02:46:14+00:00 to 2026-08-18T09:16:16+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-18T02:46:14+00:00",
        "lat": 34.7101449999999971396391629241406917572021484375,
        "lon": 33.32238830000000007203198038041591644287109375
    },
    "last_point": {
        "ts": "2026-08-18T09:16:16+00:00",
        "lat": 34.71017830000000259360604104585945606231689453125,
        "lon": 33.322423299999996970655047334730625152587890625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 02:22 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 3 meters
  • Data Points: 13 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 390,
    "points": 13,
    "centroid": {
        "lat": 34.7101583384615395289074513129889965057373046875,
        "lon": 33.32240974615384487833580351434648036956787109375
    },
    "bbox": {
        "min_lat": 34.71013169999999803394530317746102809906005859375,
        "min_lon": 33.32238499999999703504727222025394439697265625,
        "max_lat": 34.71018169999999969377313391305506229400634765625,
        "max_lon": 33.3224416999999988320269039832055568695068359375
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 18, 2026 01:33 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 321 meters
  • Duration: 6h 17m
  • Period: 2026-08-18T01:58:24+00:00 to 2026-08-18T08:16:19+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 321m) for 378 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 321m
Duration25/25Duration 378 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.5,
    "avg_distance_m": 320.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 377.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 22675,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T01:58:24+00:00",
        "end": "2026-08-18T08:16:19+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 321m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 321m) for 378 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
Aug 18, 2026 01:07 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 15 AIS positions
  • Period: 2026-08-18T01:40:18+00:00 to 2026-08-18T08:16:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-08-18T01:40:18+00:00",
        "lat": 34.71016999999999796955307829193770885467529296875,
        "lon": 33.32241499999999945202944218181073665618896484375
    },
    "last_point": {
        "ts": "2026-08-18T08:16:19+00:00",
        "lat": 34.7101583000000033507603802718222141265869140625,
        "lon": 33.322411700000003520472091622650623321533203125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 01:07 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 3 meters
  • Data Points: 15 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 396,
    "points": 15,
    "centroid": {
        "lat": 34.710157446666670466584037058055400848388671875,
        "lon": 33.3224077800000060278762248344719409942626953125
    },
    "bbox": {
        "min_lat": 34.71013169999999803394530317746102809906005859375,
        "min_lon": 33.32238499999999703504727222025394439697265625,
        "max_lat": 34.71018169999999969377313391305506229400634765625,
        "max_lon": 33.3224349999999986948751029558479785919189453125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 18, 2026 00:18 UTC 95/100 ▼
Vessel A: IMO 9517288 (ALFA SEA) Panama
Vessel B: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
  • Minimum Distance: 76 meters
  • Average Distance: 77 meters
  • Duration: 3h 21m
  • Period: 2026-08-18T00:57:29+00:00 to 2026-08-18T04:18:30+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALFA SEA and VELOS AQUARIUS) maintained close proximity (min 76m, avg 77m) for 201 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 Tightness25/25Min distance 76m, avg 77m
Duration25/25Duration 201 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": 353657000,
        "imo": 9517288,
        "name": "ALFA SEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 76.099999999999994315658113919198513031005859375,
    "avg_distance_m": 76.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 201,
    "overlap_duration_s": 12061,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T00:57:29+00:00",
        "end": "2026-08-18T04:18:30+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 76m, avg 77m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 201 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 (ALFA SEA and VELOS AQUARIUS) maintained close proximity (min 76m, avg 77m) for 201 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
Aug 18, 2026 00:13 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 316 meters
  • Average Distance: 320 meters
  • Duration: 3h 56m
  • Period: 2026-08-18T00:13:21+00:00 to 2026-08-18T04:10:17+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 320m) for 237 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
Duration25/25Duration 237 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 315.5,
    "avg_distance_m": 320.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3,
    "duration_minutes": 236.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 14216,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-18T00:13:21+00:00",
        "end": "2026-08-18T04:10:17+00:00"
    },
    "points_count": {
        "vessel_a": 17,
        "vessel_b": 17
    },
    "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 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 237 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 320m) for 237 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
Aug 18, 2026 00:13 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 15 AIS positions
  • Period: 2026-08-18T00:55:17+00:00 to 2026-08-18T07:28:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-08-18T00:55:17+00:00",
        "lat": 34.71017669999999810670487931929528713226318359375,
        "lon": 33.32240829999999931487764115445315837860107421875
    },
    "last_point": {
        "ts": "2026-08-18T07:28:23+00:00",
        "lat": 34.71014170000000120808181236498057842254638671875,
        "lon": 33.3224050000000033833202905952930450439453125
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 18, 2026 00:13 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 6 meters
  • Data Points: 15 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 15,
    "centroid": {
        "lat": 34.7101638933333305203632335178554058074951171875,
        "lon": 33.32240455333333528642469900660216808319091796875
    },
    "bbox": {
        "min_lat": 34.71014170000000120808181236498057842254638671875,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.3224349999999986948751029558479785919189453125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 17, 2026 23:10 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 5 hours
  • Data Points: 22 AIS positions
  • Period: 2026-08-17T23:10:16+00:00 to 2026-08-18T04:10:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 300,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-08-17T23:10:16+00:00",
        "lat": 34.71016999999999796955307829193770885467529296875,
        "lon": 33.322398300000003246168489567935466766357421875
    },
    "last_point": {
        "ts": "2026-08-18T04:10:17+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32238499999999703504727222025394439697265625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 17, 2026 23:10 UTC 75.0% ▼
  • Duration: 5 hours
  • Radius: 6 meters
  • Data Points: 22 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 300,
    "points": 22,
    "centroid": {
        "lat": 34.7101624318181762873791740275919437408447265625,
        "lon": 33.32240522727273202008291264064610004425048828125
    },
    "bbox": {
        "min_lat": 34.71013669999999962101355777122080326080322265625,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.3224349999999986948751029558479785919189453125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 17, 2026 23:06 UTC 80/100 ▼
Vessel A: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
Vessel B: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
  • Minimum Distance: 317 meters
  • Average Distance: 320 meters
  • Duration: 2h 9m
  • Period: 2026-08-17T23:06:52+00:00 to 2026-08-18T01:15:52+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 (AKRISIOS and VELOS AQUARIUS) maintained close proximity (min 317m, avg 320m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 317m, avg 320m
Duration25/25Duration 129 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": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.19999999999998863131622783839702606201171875,
    "avg_distance_m": 320.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 129,
    "overlap_duration_s": 7740,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-17T23:06:52+00:00",
        "end": "2026-08-18T01:15:52+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 317m, avg 320m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \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 (AKRISIOS and VELOS AQUARIUS) maintained close proximity (min 317m, avg 320m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 17, 2026 22:22 UTC 95/100 ▼
Vessel A: IMO 9517288 (ALFA SEA) Panama
Vessel B: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
  • Minimum Distance: 73 meters
  • Average Distance: 77 meters
  • Duration: 4h 39m
  • Period: 2026-08-17T22:18:30+00:00 to 2026-08-18T02:57:31+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALFA SEA and VELOS AQUARIUS) maintained close proximity (min 73m, avg 77m) for 279 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 Tightness25/25Min distance 73m, avg 77m
Duration25/25Duration 279 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 353657000,
        "imo": 9517288,
        "name": "ALFA SEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 72.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 76.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 279,
    "overlap_duration_s": 16741,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-17T22:18:30+00:00",
        "end": "2026-08-18T02:57:31+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 77m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 279 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALFA SEA and VELOS AQUARIUS) maintained close proximity (min 73m, avg 77m) for 279 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
Aug 17, 2026 22:04 UTC 70/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 318 meters
  • Average Distance: 322 meters
  • Duration: 1h 24m
  • Period: 2026-08-17T22:04:25+00:00 to 2026-08-17T23:28:22+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 84 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 322m
Duration15/25Duration 84 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: 2026-08-18T04:30:02.159620+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 318.1000000000000227373675443232059478759765625,
    "avg_distance_m": 321.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 2,
    "duration_minutes": 84,
    "overlap_duration_s": 5037,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-17T22:04:25+00:00",
        "end": "2026-08-17T23:28:22+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 318m, avg 322m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 318m, avg 322m) for 84 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": 34.7091278999999985899194143712520599365234375,
            "lon": 33.32118439999999992551238392479717731475830078125
        },
        "time_window": {
            "start_ts": "2026-08-17T22:04:25+00:00",
            "end_ts": "2026-08-17T23:28:22+00:00"
        },
        "searched_at": "2026-08-18T04:30:02.159620+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Eastern Mediterranean Surveillance Zone
Aug 17, 2026 22:04 UTC 80.0% ▼
  • Zone: Eastern Mediterranean Surveillance Zone
  • Duration: 6h 5m
  • Data Points: 25 AIS positions
  • Period: 2026-08-17T22:04:25+00:00 to 2026-08-18T04:10:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "dwell_minutes": 365.8999999999999772626324556767940521240234375,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-08-17T22:04:25+00:00",
        "lat": 34.71017330000000100653778645209968090057373046875,
        "lon": 33.32241499999999945202944218181073665618896484375
    },
    "last_point": {
        "ts": "2026-08-18T04:10:17+00:00",
        "lat": 34.7101483000000001766238710843026638031005859375,
        "lon": 33.32238499999999703504727222025394439697265625
    }
}
Methodology: 2026.01.18
Loiter Eastern Mediterranean Surveillance Zone
Aug 17, 2026 22:04 UTC 75.0% ▼
  • Duration: 6h 5m
  • Radius: 6 meters
  • Data Points: 25 AIS positions
  • Centroid: 34.7102, 33.3224
  • Zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 365.8999999999999772626324556767940521240234375,
    "points": 25,
    "centroid": {
        "lat": 34.71016313999999880479663261212408542633056640625,
        "lon": 33.32240573200000000042564352042973041534423828125
    },
    "bbox": {
        "min_lat": 34.71013669999999962101355777122080326080322265625,
        "min_lon": 33.32238000000000255340637522749602794647216796875,
        "max_lat": 34.71020999999999645524439984001219272613525390625,
        "max_lon": 33.3224349999999986948751029558479785919189453125
    },
    "zone_id": "discovered_041"
}
Methodology: 2026.01.18
Sts Eastern Mediterranean Surveillance Zone
Aug 17, 2026 21:51 UTC 95/100 ▼
Vessel A: IMO 9517288 (ALFA SEA) Panama
Vessel B: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
  • Minimum Distance: 73 meters
  • Average Distance: 77 meters
  • Duration: 3h 6m
  • Period: 2026-08-17T21:51:28+00:00 to 2026-08-18T00:57:29+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALFA SEA and VELOS AQUARIUS) maintained close proximity (min 73m, avg 77m) for 186 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 Tightness25/25Min distance 73m, avg 77m
Duration25/25Duration 186 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 353657000,
        "imo": 9517288,
        "name": "ALFA SEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 72.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 76.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 186,
    "overlap_duration_s": 11161,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-17T21:51:28+00:00",
        "end": "2026-08-18T00:57:29+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_041",
    "zone_name": "Eastern Mediterranean Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 77m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 186 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALFA SEA and VELOS AQUARIUS) maintained close proximity (min 73m, avg 77m) for 186 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
Aug 17, 2026 21:39 UTC 80/100 ▼
Vessel A: IMO 9381756 (VELOS AQUARIUS) MARSHALL ISLANDS
Vessel B: IMO 9953456 (AKRISIOS) MARSHALL ISLANDS
  • Minimum Distance: 317 meters
  • Average Distance: 321 meters
  • Duration: 2h 18m
  • Period: 2026-08-17T21:10:12+00:00 to 2026-08-17T23:28:22+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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 321m) for 138 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 321m
Duration25/25Duration 138 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": 538008652,
        "imo": 9381756,
        "name": "VELOS AQUARIUS",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 538012909,
        "imo": 9953456,
        "name": "AKRISIOS",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316.5,
    "avg_distance_m": 320.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.5,
    "duration_minutes": 138.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 8290,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-17T21:10:12+00:00",
        "end": "2026-08-17T23:28:22+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 316m, avg 321m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 138 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 (VELOS AQUARIUS and AKRISIOS) maintained close proximity (min 316m, avg 321m) for 138 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
Oct 28 13:51 55.1929 14.3775 13.8 kn 39.1° Southern Öresund Monitoring Zone
Oct 28 13:48 55.1837 14.3638 13.8 kn 42.4° Southern Öresund Monitoring Zone
Oct 28 13:47 55.1808 14.3593 13.8 kn 42.3° Southern Öresund Monitoring Zone
Oct 28 13:44 55.1721 14.3461 13.6 kn 41.1° Southern Öresund Monitoring Zone
Oct 28 13:42 55.1659 14.3366 13.4 kn 40.5° Southern Öresund Monitoring Zone
Oct 28 13:35 55.1508 14.3055 13.8 kn 87.5° Southern Öresund Monitoring Zone
Oct 28 13:28 55.1489 14.2581 13.9 kn 87.3° Southern Öresund Monitoring Zone
Oct 28 12:22 55.1584 13.8157 14.0 kn 93.4° Southern Öresund Surveillance Zone
Oct 28 12:19 55.1594 13.7954 14.0 kn 95.3° Southern Öresund Surveillance Zone
Oct 28 12:17 55.1601 13.7824 14.0 kn 95.2° Southern Öresund Surveillance Zone
Oct 28 12:13 55.1614 13.7529 13.9 kn 96.1° Southern Öresund Surveillance Zone
Oct 28 12:12 55.1618 13.7462 13.9 kn 96.8° Southern Öresund Surveillance Zone
Oct 28 12:01 55.1656 13.6715 14.0 kn 93.7° Southern Öresund Surveillance Zone
Oct 28 11:50 55.1687 13.6003 13.9 kn 92.8° Southern Öresund Surveillance Zone
Oct 28 11:47 55.1697 13.5786 14.0 kn 95.7° Southern Öresund Surveillance Zone
Oct 28 11:45 55.1705 13.5650 14.1 kn 95.0° Southern Öresund Surveillance Zone
Oct 28 11:43 55.1711 13.5506 14.3 kn 91.6° Southern Öresund Surveillance Zone
Oct 28 11:36 55.1732 13.5018 14.1 kn 96.7° Southern Öresund Surveillance Zone
Oct 28 11:35 55.1737 13.4938 14.0 kn 97.0° Southern Öresund Surveillance Zone
Oct 28 11:34 55.1741 13.4883 14.0 kn 96.3° Southern Öresund Surveillance 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.