VAYU 1

IMO 9290517

Vessel information

Vessel Name VAYU 1
IMO Number 9290517
MMSI 613445600
Vessel Type Tanker
Flag 🇨🇲 CAMEROON
Call Sign TJM17Q
Length 183 m
Beam 27 m

Sanction Status

⚠️ This vessel is sanctioned.

View Full Sanctions Details →

Detected Events (100)

Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 09:35 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 1h 51m
  • Data Points: 8 AIS positions
  • Period: 2026-08-01T09:35:41+00:00 to 2026-08-01T11:26:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 111,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-08-01T09:35:41+00:00",
        "lat": 31.54824669999999997571649146266281604766845703125,
        "lon": 32.33767999999999886995283304713666439056396484375
    },
    "last_point": {
        "ts": "2026-08-01T11:26:41+00:00",
        "lat": 31.547921699999999844976628082804381847381591796875,
        "lon": 32.33751000000000175305103766731917858123779296875
    }
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 08:44 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 2h 42m
  • Data Points: 10 AIS positions
  • Period: 2026-08-01T08:44:41+00:00 to 2026-08-01T11:26:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 162,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-08-01T08:44:41+00:00",
        "lat": 31.54829670000000163554432219825685024261474609375,
        "lon": 32.33769499999999652573023922741413116455078125
    },
    "last_point": {
        "ts": "2026-08-01T11:26:41+00:00",
        "lat": 31.547921699999999844976628082804381847381591796875,
        "lon": 32.33751000000000175305103766731917858123779296875
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 08:44 UTC 75.0%
  • Duration: 2h 42m
  • Radius: 42 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5480, 32.3376
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 41.5,
    "duration_minutes": 162,
    "points": 10,
    "centroid": {
        "lat": 31.548028179999999309757185983471572399139404296875,
        "lon": 32.33755083000000496440407005138695240020751953125
    },
    "bbox": {
        "min_lat": 31.54778329999999897381712798960506916046142578125,
        "min_lon": 32.33738000000000312184056383557617664337158203125,
        "max_lat": 31.548365000000000435420588473789393901824951171875,
        "max_lon": 32.33774170000000225400071940384805202484130859375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 06:17 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 9m
  • Data Points: 11 AIS positions
  • Period: 2026-08-01T06:17:41+00:00 to 2026-08-01T11:26:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 309,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-01T06:17:41+00:00",
        "lat": 31.5479516999999987092451192438602447509765625,
        "lon": 32.3375750000000010686562745831906795501708984375
    },
    "last_point": {
        "ts": "2026-08-01T11:26:41+00:00",
        "lat": 31.547921699999999844976628082804381847381591796875,
        "lon": 32.33751000000000175305103766731917858123779296875
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 06:17 UTC 75.0%
  • Duration: 5h 9m
  • Radius: 42 meters
  • Data Points: 11 AIS positions
  • Centroid: 31.5480, 32.3376
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 42.10000000000000142108547152020037174224853515625,
    "duration_minutes": 309,
    "points": 11,
    "centroid": {
        "lat": 31.54802122727272717384039424359798431396484375,
        "lon": 32.337553027272718964013620279729366302490234375
    },
    "bbox": {
        "min_lat": 31.54778329999999897381712798960506916046142578125,
        "min_lon": 32.33738000000000312184056383557617664337158203125,
        "max_lat": 31.548365000000000435420588473789393901824951171875,
        "max_lon": 32.33774170000000225400071940384805202484130859375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 05:35 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 51m
  • Data Points: 12 AIS positions
  • Period: 2026-08-01T05:35:41+00:00 to 2026-08-01T11:26:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 351,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-08-01T05:35:41+00:00",
        "lat": 31.5479567000000002963133738376200199127197265625,
        "lon": 32.33747000000000326735971611924469470977783203125
    },
    "last_point": {
        "ts": "2026-08-01T11:26:41+00:00",
        "lat": 31.547921699999999844976628082804381847381591796875,
        "lon": 32.33751000000000175305103766731917858123779296875
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 05:35 UTC 75.0%
  • Duration: 5h 51m
  • Radius: 43 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5480, 32.3375
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 42.89999999999999857891452847979962825775146484375,
    "duration_minutes": 351,
    "points": 12,
    "centroid": {
        "lat": 31.548015850000002302522261743433773517608642578125,
        "lon": 32.33754610833333487107665860094130039215087890625
    },
    "bbox": {
        "min_lat": 31.54778329999999897381712798960506916046142578125,
        "min_lon": 32.33738000000000312184056383557617664337158203125,
        "max_lat": 31.548365000000000435420588473789393901824951171875,
        "max_lon": 32.33774170000000225400071940384805202484130859375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 04:02 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 8 AIS positions
  • Period: 2026-08-01T04:26:41+00:00 to 2026-08-01T10:47:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-08-01T04:26:41+00:00",
        "lat": 31.547651699999999408419171231798827648162841796875,
        "lon": 32.33697829999999839856172911822795867919921875
    },
    "last_point": {
        "ts": "2026-08-01T10:47:42+00:00",
        "lat": 31.54809829999999948313416098244488239288330078125,
        "lon": 32.33757829999999700021362514235079288482666015625
    }
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 03:20 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 15m
  • Data Points: 11 AIS positions
  • Period: 2026-08-01T03:20:41+00:00 to 2026-08-01T09:35:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 375,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-01T03:20:41+00:00",
        "lat": 31.547451699999999874535205890424549579620361328125,
        "lon": 32.33664329999999864639903535135090351104736328125
    },
    "last_point": {
        "ts": "2026-08-01T09:35:41+00:00",
        "lat": 31.54824669999999997571649146266281604766845703125,
        "lon": 32.33767999999999886995283304713666439056396484375
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 03:20 UTC 75.0%
  • Duration: 6h 15m
  • Radius: 77 meters
  • Data Points: 11 AIS positions
  • Centroid: 31.5478, 32.3372
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 77.2999999999999971578290569595992565155029296875,
    "duration_minutes": 375,
    "points": 11,
    "centroid": {
        "lat": 31.5478385090909085874955053441226482391357421875,
        "lon": 32.337208472727269281676854006946086883544921875
    },
    "bbox": {
        "min_lat": 31.547426699999999044621290522627532482147216796875,
        "min_lon": 32.3366232999999994035533745773136615753173828125,
        "max_lat": 31.548365000000000435420588473789393901824951171875,
        "max_lon": 32.33774170000000225400071940384805202484130859375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 02:23 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 14 AIS positions
  • Period: 2026-08-01T02:23:41+00:00 to 2026-08-01T08:56:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-08-01T02:23:41+00:00",
        "lat": 31.547550000000001091393642127513885498046875,
        "lon": 32.3368516999999968675183481536805629730224609375
    },
    "last_point": {
        "ts": "2026-08-01T08:56:42+00:00",
        "lat": 31.548365000000000435420588473789393901824951171875,
        "lon": 32.33774170000000225400071940384805202484130859375
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 02:23 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 100 meters
  • Data Points: 14 AIS positions
  • Centroid: 31.5477, 32.3370
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 99.7999999999999971578290569595992565155029296875,
    "duration_minutes": 393,
    "points": 14,
    "centroid": {
        "lat": 31.54770656428571129481497337110340595245361328125,
        "lon": 32.33702558571427942979426006786525249481201171875
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.548365000000000435420588473789393901824951171875,
        "max_lon": 32.33774170000000225400071940384805202484130859375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 01:02 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 15m
  • Data Points: 18 AIS positions
  • Period: 2026-08-01T01:02:41+00:00 to 2026-08-01T06:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 315,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-08-01T01:02:41+00:00",
        "lat": 31.54750500000000101863406598567962646484375,
        "lon": 32.3368832999999966659743222407996654510498046875
    },
    "last_point": {
        "ts": "2026-08-01T06:17:41+00:00",
        "lat": 31.5479516999999987092451192438602447509765625,
        "lon": 32.3375750000000010686562745831906795501708984375
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 01:02 UTC 75.0%
  • Duration: 5h 15m
  • Radius: 75 meters
  • Data Points: 18 AIS positions
  • Centroid: 31.5476, 32.3369
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 74.7999999999999971578290569595992565155029296875,
    "duration_minutes": 315,
    "points": 18,
    "centroid": {
        "lat": 31.547578622222221866877589491195976734161376953125,
        "lon": 32.33691878333333846740060835145413875579833984375
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.5479567000000002963133738376200199127197265625,
        "max_lon": 32.3375750000000010686562745831906795501708984375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Malacca Strait Surveillance Zone
Aug 1, 2026 00:56 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 21m
  • Data Points: 20 AIS positions
  • Period: 2026-08-01T00:56:41+00:00 to 2026-08-01T06:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 321,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-08-01T00:56:41+00:00",
        "lat": 31.547508300000000502905095345340669155120849609375,
        "lon": 32.33696330000000074278432293795049190521240234375
    },
    "last_point": {
        "ts": "2026-08-01T06:17:41+00:00",
        "lat": 31.5479516999999987092451192438602447509765625,
        "lon": 32.3375750000000010686562745831906795501708984375
    }
}
Methodology: 2026.01.18
Loiter Malacca Strait Surveillance Zone
Aug 1, 2026 00:56 UTC 75.0%
  • Duration: 5h 21m
  • Radius: 75 meters
  • Data Points: 20 AIS positions
  • Centroid: 31.5476, 32.3369
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 74.7000000000000028421709430404007434844970703125,
    "duration_minutes": 321,
    "points": 20,
    "centroid": {
        "lat": 31.547573674999995319012668915092945098876953125,
        "lon": 32.33692348500000690592059982009232044219970703125
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.5479567000000002963133738376200199127197265625,
        "max_lon": 32.3375750000000010686562745831906795501708984375
    },
    "zone_id": "discovered_160"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Aug 1, 2026 00:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 12m
  • Data Points: 23 AIS positions
  • Period: 2026-08-01T00:05:41+00:00 to 2026-08-01T06:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 372,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-08-01T00:05:41+00:00",
        "lat": 31.547495000000001397211235598661005496978759765625,
        "lon": 32.3368516999999968675183481536805629730224609375
    },
    "last_point": {
        "ts": "2026-08-01T06:17:41+00:00",
        "lat": 31.5479516999999987092451192438602447509765625,
        "lon": 32.3375750000000010686562745831906795501708984375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Aug 1, 2026 00:05 UTC 75.0%
  • Duration: 6h 12m
  • Radius: 74 meters
  • Data Points: 23 AIS positions
  • Centroid: 31.5476, 32.3369
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 74.2999999999999971578290569595992565155029296875,
    "duration_minutes": 372,
    "points": 23,
    "centroid": {
        "lat": 31.54757087391303826962030143477022647857666015625,
        "lon": 32.33693151304348845087588415481150150299072265625
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.5479567000000002963133738376200199127197265625,
        "max_lon": 32.3375750000000010686562745831906795501708984375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 23:11 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 24 AIS positions
  • Period: 2026-07-31T23:50:41+00:00 to 2026-08-01T06:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-31T23:50:41+00:00",
        "lat": 31.547598300000000648424247629009187221527099609375,
        "lon": 32.33710169999999806123014423064887523651123046875
    },
    "last_point": {
        "ts": "2026-08-01T06:17:41+00:00",
        "lat": 31.5479516999999987092451192438602447509765625,
        "lon": 32.3375750000000010686562745831906795501708984375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 23:11 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 74 meters
  • Data Points: 24 AIS positions
  • Centroid: 31.5476, 32.3369
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 73.599999999999994315658113919198513031005859375,
    "duration_minutes": 387,
    "points": 24,
    "centroid": {
        "lat": 31.547572016666659777683889842592179775238037109375,
        "lon": 32.33693860416666865376100759021937847137451171875
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.5479567000000002963133738376200199127197265625,
        "max_lon": 32.3375750000000010686562745831906795501708984375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 22:17 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 9m
  • Data Points: 27 AIS positions
  • Period: 2026-07-31T22:17:41+00:00 to 2026-08-01T04:26:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 369,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-07-31T22:17:41+00:00",
        "lat": 31.547548299999998988596416893415153026580810546875,
        "lon": 32.3369799999999969486452755518257617950439453125
    },
    "last_point": {
        "ts": "2026-08-01T04:26:41+00:00",
        "lat": 31.547651699999999408419171231798827648162841796875,
        "lon": 32.33697829999999839856172911822795867919921875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 22:17 UTC 75.0%
  • Duration: 6h 9m
  • Radius: 39 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5475, 32.3369
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 39,
    "duration_minutes": 369,
    "points": 27,
    "centroid": {
        "lat": 31.54754172962962144310949952341616153717041015625,
        "lon": 32.33691443703703072287680697627365589141845703125
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.547668300000001551097739138640463352203369140625,
        "max_lon": 32.33710169999999806123014423064887523651123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 21:11 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 26 AIS positions
  • Period: 2026-07-31T21:23:41+00:00 to 2026-08-01T03:53:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-07-31T21:23:41+00:00",
        "lat": 31.547438299999999600231603835709393024444580078125,
        "lon": 32.3369100000000031513991416431963443756103515625
    },
    "last_point": {
        "ts": "2026-08-01T03:53:41+00:00",
        "lat": 31.547611700000000922727849683724343776702880859375,
        "lon": 32.33691830000000067002474679611623287200927734375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 21:11 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 38 meters
  • Data Points: 26 AIS positions
  • Centroid: 31.5475, 32.3369
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 38.10000000000000142108547152020037174224853515625,
    "duration_minutes": 390,
    "points": 26,
    "centroid": {
        "lat": 31.547528653846146795558524900116026401519775390625,
        "lon": 32.33690871153846302377132815308868885040283203125
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.547611700000000922727849683724343776702880859375,
        "max_lon": 32.33710169999999806123014423064887523651123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 20:08 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 9m
  • Data Points: 25 AIS positions
  • Period: 2026-07-31T20:41:41+00:00 to 2026-08-01T02:50:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 369,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-07-31T20:41:41+00:00",
        "lat": 31.5475832999999994399331626482307910919189453125,
        "lon": 32.3371317000000004782123141922056674957275390625
    },
    "last_point": {
        "ts": "2026-08-01T02:50:42+00:00",
        "lat": 31.54742329999999839174051885493099689483642578125,
        "lon": 32.3365433000000024321707314811646938323974609375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 20:08 UTC 75.0%
  • Duration: 6h 9m
  • Radius: 42 meters
  • Data Points: 25 AIS positions
  • Centroid: 31.5475, 32.3369
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 41.5,
    "duration_minutes": 369,
    "points": 25,
    "centroid": {
        "lat": 31.547530659999996061060301144607365131378173828125,
        "lon": 32.33694606399999571522130281664431095123291015625
    },
    "bbox": {
        "min_lat": 31.54742329999999839174051885493099689483642578125,
        "min_lon": 32.33652670000000028949216357432305812835693359375,
        "max_lat": 31.54760329999999868277882342226803302764892578125,
        "max_lon": 32.3371317000000004782123141922056674957275390625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 19:08 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 24 AIS positions
  • Period: 2026-07-31T19:08:42+00:00 to 2026-08-01T01:35:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-31T19:08:42+00:00",
        "lat": 31.547374999999998834709913353435695171356201171875,
        "lon": 32.336776700000001483203959651291370391845703125
    },
    "last_point": {
        "ts": "2026-08-01T01:35:42+00:00",
        "lat": 31.54755829999999861001924728043377399444580078125,
        "lon": 32.33700999999999936562744551338255405426025390625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 19:08 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 26 meters
  • Data Points: 24 AIS positions
  • Centroid: 31.5475, 32.3370
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 26.300000000000000710542735760100185871124267578125,
    "duration_minutes": 387,
    "points": 24,
    "centroid": {
        "lat": 31.547525687500002078422767226584255695343017578125,
        "lon": 32.33699111249999447181835421361029148101806640625
    },
    "bbox": {
        "min_lat": 31.547374999999998834709913353435695171356201171875,
        "min_lon": 32.336776700000001483203959651291370391845703125,
        "max_lat": 31.54760329999999868277882342226803302764892578125,
        "max_lon": 32.3371317000000004782123141922056674957275390625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 17:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 18m
  • Data Points: 14 AIS positions
  • Period: 2026-07-31T17:05:41+00:00 to 2026-07-31T23:23:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 378,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-31T17:05:41+00:00",
        "lat": 31.547640000000001236912794411182403564453125,
        "lon": 32.3371982999999971752913552336394786834716796875
    },
    "last_point": {
        "ts": "2026-07-31T23:23:42+00:00",
        "lat": 31.547579999999999955662133288569748401641845703125,
        "lon": 32.33706500000000261252353084273636341094970703125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 17:05 UTC 75.0%
  • Duration: 6h 18m
  • Radius: 28 meters
  • Data Points: 14 AIS positions
  • Centroid: 31.5475, 32.3370
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 28.199999999999999289457264239899814128875732421875,
    "duration_minutes": 378,
    "points": 14,
    "centroid": {
        "lat": 31.547520714285720799807677394710481166839599609375,
        "lon": 32.33702035714285472067786031402647495269775390625
    },
    "bbox": {
        "min_lat": 31.547374999999998834709913353435695171356201171875,
        "min_lon": 32.336776700000001483203959651291370391845703125,
        "max_lat": 31.547640000000001236912794411182403564453125,
        "max_lon": 32.3371982999999971752913552336394786834716796875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 16:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 12m
  • Data Points: 12 AIS positions
  • Period: 2026-07-31T16:05:41+00:00 to 2026-07-31T22:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 372,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-07-31T16:05:41+00:00",
        "lat": 31.547529999999998295834302552975714206695556640625,
        "lon": 32.33709499999999792407834320329129695892333984375
    },
    "last_point": {
        "ts": "2026-07-31T22:17:41+00:00",
        "lat": 31.547548299999998988596416893415153026580810546875,
        "lon": 32.3369799999999969486452755518257617950439453125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 16:05 UTC 75.0%
  • Duration: 6h 12m
  • Radius: 29 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5475, 32.3370
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 29,
    "duration_minutes": 372,
    "points": 12,
    "centroid": {
        "lat": 31.547514158333331835137869347818195819854736328125,
        "lon": 32.33703486666666293558591860346496105194091796875
    },
    "bbox": {
        "min_lat": 31.547374999999998834709913353435695171356201171875,
        "min_lon": 32.336776700000001483203959651291370391845703125,
        "max_lat": 31.547640000000001236912794411182403564453125,
        "max_lon": 32.3372667000000006964910426177084445953369140625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 13:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 8 AIS positions
  • Period: 2026-07-31T13:41:41+00:00 to 2026-07-31T20:17:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-31T13:41:41+00:00",
        "lat": 31.54788500000000084355633589439094066619873046875,
        "lon": 32.33754830000000168865881278179585933685302734375
    },
    "last_point": {
        "ts": "2026-07-31T20:17:42+00:00",
        "lat": 31.547529999999998295834302552975714206695556640625,
        "lon": 32.337126699999998891144059598445892333984375
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 12:11 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 11 AIS positions
  • Period: 2026-07-31T12:44:41+00:00 to 2026-07-31T19:14:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-07-31T12:44:41+00:00",
        "lat": 31.548051699999998476187101914547383785247802734375,
        "lon": 32.33769499999999652573023922741413116455078125
    },
    "last_point": {
        "ts": "2026-07-31T19:14:41+00:00",
        "lat": 31.54743669999999866604412090964615345001220703125,
        "lon": 32.3369617000000033613105188123881816864013671875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 12:11 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 67 meters
  • Data Points: 11 AIS positions
  • Centroid: 31.5477, 32.3373
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 66.5,
    "duration_minutes": 390,
    "points": 11,
    "centroid": {
        "lat": 31.547734999999992311359164887107908725738525390625,
        "lon": 32.33733637272727179379216977395117282867431640625
    },
    "bbox": {
        "min_lat": 31.547374999999998834709913353435695171356201171875,
        "min_lon": 32.336776700000001483203959651291370391845703125,
        "max_lat": 31.548051699999998476187101914547383785247802734375,
        "max_lon": 32.33769499999999652573023922741413116455078125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 11:17 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 5h 48m
  • Data Points: 15 AIS positions
  • Period: 2026-07-31T11:17:41+00:00 to 2026-07-31T17:05:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 348,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-07-31T11:17:41+00:00",
        "lat": 31.548276699999998839984982623718678951263427734375,
        "lon": 32.33772830000000197969711734913289546966552734375
    },
    "last_point": {
        "ts": "2026-07-31T17:05:41+00:00",
        "lat": 31.547640000000001236912794411182403564453125,
        "lon": 32.3371982999999971752913552336394786834716796875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 11:17 UTC 75.0%
  • Duration: 5h 48m
  • Radius: 62 meters
  • Data Points: 15 AIS positions
  • Centroid: 31.5479, 32.3375
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 61.60000000000000142108547152020037174224853515625,
    "duration_minutes": 348,
    "points": 15,
    "centroid": {
        "lat": 31.547933666666668983680210658349096775054931640625,
        "lon": 32.3375414466666626367441494949162006378173828125
    },
    "bbox": {
        "min_lat": 31.547529999999998295834302552975714206695556640625,
        "min_lon": 32.33709499999999792407834320329129695892333984375,
        "max_lat": 31.548276699999998839984982623718678951263427734375,
        "max_lon": 32.3377600000000029467628337442874908447265625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 10:29 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 17 AIS positions
  • Period: 2026-07-31T10:32:41+00:00 to 2026-07-31T17:05:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-07-31T10:32:41+00:00",
        "lat": 31.548243299999999322835719794966280460357666015625,
        "lon": 32.3377550000000013596945791505277156829833984375
    },
    "last_point": {
        "ts": "2026-07-31T17:05:41+00:00",
        "lat": 31.547640000000001236912794411182403564453125,
        "lon": 32.3371982999999971752913552336394786834716796875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 10:29 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 67 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5480, 32.3376
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 66.5,
    "duration_minutes": 393,
    "points": 17,
    "centroid": {
        "lat": 31.54797137058823608413149486295878887176513671875,
        "lon": 32.3375695117646984044768032617866992950439453125
    },
    "bbox": {
        "min_lat": 31.547529999999998295834302552975714206695556640625,
        "min_lon": 32.33709499999999792407834320329129695892333984375,
        "max_lat": 31.548276699999998839984982623718678951263427734375,
        "max_lon": 32.3378050000000030195224098861217498779296875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 09:02 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 24m
  • Data Points: 18 AIS positions
  • Period: 2026-07-31T09:53:43+00:00 to 2026-07-31T16:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-07-31T09:53:43+00:00",
        "lat": 31.548468299999999686633600504137575626373291015625,
        "lon": 32.337881699999996953920344822108745574951171875
    },
    "last_point": {
        "ts": "2026-07-31T16:17:41+00:00",
        "lat": 31.54760830000000026984707801602780818939208984375,
        "lon": 32.3372667000000006964910426177084445953369140625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 09:02 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 75 meters
  • Data Points: 18 AIS positions
  • Centroid: 31.5480, 32.3376
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 74.5,
    "duration_minutes": 384,
    "points": 18,
    "centroid": {
        "lat": 31.5480309222222246035016723908483982086181640625,
        "lon": 32.337617877777773855996201746165752410888671875
    },
    "bbox": {
        "min_lat": 31.547529999999998295834302552975714206695556640625,
        "min_lon": 32.33709499999999792407834320329129695892333984375,
        "max_lat": 31.548468299999999686633600504137575626373291015625,
        "max_lon": 32.337881699999996953920344822108745574951171875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 06:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 18 AIS positions
  • Period: 2026-07-31T06:44:42+00:00 to 2026-07-31T13:11:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-07-31T06:44:42+00:00",
        "lat": 31.54836329999999833262336323969066143035888671875,
        "lon": 32.33782000000000067529981606639921665191650390625
    },
    "last_point": {
        "ts": "2026-07-31T13:11:41+00:00",
        "lat": 31.54792499999999932924765744246542453765869140625,
        "lon": 32.33752170000000347727109328843653202056884765625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 06:05 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 37 meters
  • Data Points: 18 AIS positions
  • Centroid: 31.5482, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 36.89999999999999857891452847979962825775146484375,
    "duration_minutes": 387,
    "points": 18,
    "centroid": {
        "lat": 31.548166849999997651821104227565228939056396484375,
        "lon": 32.3377159277777792567576398141682147979736328125
    },
    "bbox": {
        "min_lat": 31.547889999999998877910911687649786472320556640625,
        "min_lon": 32.33752170000000347727109328843653202056884765625,
        "max_lat": 31.548468299999999686633600504137575626373291015625,
        "max_lon": 32.337884999999999990905052982270717620849609375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 05:23 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 17 AIS positions
  • Period: 2026-07-31T05:23:42+00:00 to 2026-07-31T11:56:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-07-31T05:23:42+00:00",
        "lat": 31.5483933000000007496055332012474536895751953125,
        "lon": 32.33785830000000061090759118087589740753173828125
    },
    "last_point": {
        "ts": "2026-07-31T11:56:41+00:00",
        "lat": 31.54815169999999824312908458523452281951904296875,
        "lon": 32.337711699999999837018549442291259765625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 05:23 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 23 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5483, 32.3378
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 23.39999999999999857891452847979962825775146484375,
    "duration_minutes": 393,
    "points": 17,
    "centroid": {
        "lat": 31.54827636470587748362959246151149272918701171875,
        "lon": 32.3377788176470630787662230432033538818359375
    },
    "bbox": {
        "min_lat": 31.54815169999999824312908458523452281951904296875,
        "min_lon": 32.33767329999999873280103201977908611297607421875,
        "max_lat": 31.548468299999999686633600504137575626373291015625,
        "max_lon": 32.337884999999999990905052982270717620849609375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 04:38 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 6m
  • Data Points: 15 AIS positions
  • Period: 2026-07-31T04:38:42+00:00 to 2026-07-31T10:44:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 366,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-07-31T04:38:42+00:00",
        "lat": 31.5482200000000005957190296612679958343505859375,
        "lon": 32.33782000000000067529981606639921665191650390625
    },
    "last_point": {
        "ts": "2026-07-31T10:44:41+00:00",
        "lat": 31.5482650000000006684786058031022548675537109375,
        "lon": 32.3378050000000030195224098861217498779296875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 04:38 UTC 75.0%
  • Duration: 6h 6m
  • Radius: 22 meters
  • Data Points: 15 AIS positions
  • Centroid: 31.5483, 32.3378
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 21.699999999999999289457264239899814128875732421875,
    "duration_minutes": 366,
    "points": 15,
    "centroid": {
        "lat": 31.5482888733333339814635110087692737579345703125,
        "lon": 32.33779066000000312897100229747593402862548828125
    },
    "bbox": {
        "min_lat": 31.54820829999999887149897404015064239501953125,
        "min_lon": 32.33767329999999873280103201977908611297607421875,
        "max_lat": 31.548468299999999686633600504137575626373291015625,
        "max_lon": 32.337884999999999990905052982270717620849609375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 03:14 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 12m
  • Data Points: 12 AIS positions
  • Period: 2026-07-31T03:14:41+00:00 to 2026-07-31T09:26:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 372,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-07-31T03:14:41+00:00",
        "lat": 31.548346699999999742658474133349955081939697265625,
        "lon": 32.337794999999999845385900698602199554443359375
    },
    "last_point": {
        "ts": "2026-07-31T09:26:42+00:00",
        "lat": 31.5482717000000008056304068304598331451416015625,
        "lon": 32.33767329999999873280103201977908611297607421875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 03:14 UTC 75.0%
  • Duration: 6h 12m
  • Radius: 16 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5483, 32.3378
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 15.800000000000000710542735760100185871124267578125,
    "duration_minutes": 372,
    "points": 12,
    "centroid": {
        "lat": 31.548290683333334527560509741306304931640625,
        "lon": 32.33778804166666986930067650973796844482421875
    },
    "bbox": {
        "min_lat": 31.54820829999999887149897404015064239501953125,
        "min_lon": 32.33767329999999873280103201977908611297607421875,
        "max_lat": 31.5484067000000010239091352559626102447509765625,
        "max_lon": 32.337884999999999990905052982270717620849609375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 02:02 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 12 AIS positions
  • Period: 2026-07-31T02:41:42+00:00 to 2026-07-31T09:17:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-07-31T02:41:42+00:00",
        "lat": 31.54828499999999991132426657713949680328369140625,
        "lon": 32.337733299999996461338014341890811920166015625
    },
    "last_point": {
        "ts": "2026-07-31T09:17:41+00:00",
        "lat": 31.5484067000000010239091352559626102447509765625,
        "lon": 32.337884999999999990905052982270717620849609375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 02:02 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 15 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5483, 32.3378
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 15.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 396,
    "points": 12,
    "centroid": {
        "lat": 31.548291791666667194249384920112788677215576171875,
        "lon": 32.33779304166666435094157350249588489532470703125
    },
    "bbox": {
        "min_lat": 31.54820829999999887149897404015064239501953125,
        "min_lon": 32.33772330000000039262886275537312030792236328125,
        "max_lat": 31.5484067000000010239091352559626102447509765625,
        "max_lon": 32.337884999999999990905052982270717620849609375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 01:59 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 4h 45m
  • Data Points: 13 AIS positions
  • Period: 2026-07-31T01:59:43+00:00 to 2026-07-31T06:44:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 285,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-31T01:59:43+00:00",
        "lat": 31.548183300000001594298737472854554653167724609375,
        "lon": 32.33773000000000052978066378273069858551025390625
    },
    "last_point": {
        "ts": "2026-07-31T06:44:42+00:00",
        "lat": 31.54836329999999833262336323969066143035888671875,
        "lon": 32.33782000000000067529981606639921665191650390625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 01:59 UTC 75.0%
  • Duration: 4h 45m
  • Radius: 17 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.5483, 32.3378
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 16.89999999999999857891452847979962825775146484375,
    "duration_minutes": 285,
    "points": 13,
    "centroid": {
        "lat": 31.548259984615381057437843992374837398529052734375,
        "lon": 32.33777140000000116515366244129836559295654296875
    },
    "bbox": {
        "min_lat": 31.548158300000000764384822105057537555694580078125,
        "min_lon": 32.33772330000000039262886275537312030792236328125,
        "max_lat": 31.5483933000000007496055332012474536895751953125,
        "max_lon": 32.33785830000000061090759118087589740753173828125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 31, 2026 00:59 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 5h 45m
  • Data Points: 14 AIS positions
  • Period: 2026-07-31T00:59:41+00:00 to 2026-07-31T06:44:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 345,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-31T00:59:41+00:00",
        "lat": 31.54814329999999955589373712427914142608642578125,
        "lon": 32.3377150000000028740032576024532318115234375
    },
    "last_point": {
        "ts": "2026-07-31T06:44:42+00:00",
        "lat": 31.54836329999999833262336323969066143035888671875,
        "lon": 32.33782000000000067529981606639921665191650390625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 31, 2026 00:59 UTC 75.0%
  • Duration: 5h 45m
  • Radius: 18 meters
  • Data Points: 14 AIS positions
  • Centroid: 31.5483, 32.3378
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 17.89999999999999857891452847979962825775146484375,
    "duration_minutes": 345,
    "points": 14,
    "centroid": {
        "lat": 31.5482516499999974257661961019039154052734375,
        "lon": 32.3377673714285691630720975808799266815185546875
    },
    "bbox": {
        "min_lat": 31.54814329999999955589373712427914142608642578125,
        "min_lon": 32.3377150000000028740032576024532318115234375,
        "max_lat": 31.5483933000000007496055332012474536895751953125,
        "max_lon": 32.33785830000000061090759118087589740753173828125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 22:14 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 24m
  • Data Points: 8 AIS positions
  • Period: 2026-07-30T22:14:44+00:00 to 2026-07-31T04:38:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-30T22:14:44+00:00",
        "lat": 31.547991700000000747650119592435657978057861328125,
        "lon": 32.3376583000000010770236258395016193389892578125
    },
    "last_point": {
        "ts": "2026-07-31T04:38:42+00:00",
        "lat": 31.5482200000000005957190296612679958343505859375,
        "lon": 32.33782000000000067529981606639921665191650390625
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 19:02 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 7 AIS positions
  • Period: 2026-07-30T19:35:42+00:00 to 2026-07-31T02:05:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-07-30T19:35:42+00:00",
        "lat": 31.547908299999999570673026028089225292205810546875,
        "lon": 32.33758329999999858728187973611056804656982421875
    },
    "last_point": {
        "ts": "2026-07-31T02:05:43+00:00",
        "lat": 31.548158300000000764384822105057537555694580078125,
        "lon": 32.33772499999999894271240918897092342376708984375
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 18:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 6m
  • Data Points: 8 AIS positions
  • Period: 2026-07-30T18:53:42+00:00 to 2026-07-31T00:59:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 366,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-30T18:53:42+00:00",
        "lat": 31.54787830000000070640453486703336238861083984375,
        "lon": 32.337524999999999408828443847596645355224609375
    },
    "last_point": {
        "ts": "2026-07-31T00:59:41+00:00",
        "lat": 31.54814329999999955589373712427914142608642578125,
        "lon": 32.3377150000000028740032576024532318115234375
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 17:05 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 5h 9m
  • Data Points: 11 AIS positions
  • Period: 2026-07-30T17:05:44+00:00 to 2026-07-30T22:14:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 309,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-07-30T17:05:44+00:00",
        "lat": 31.547824999999999562305674771778285503387451171875,
        "lon": 32.3375367000000011330484994687139987945556640625
    },
    "last_point": {
        "ts": "2026-07-30T22:14:44+00:00",
        "lat": 31.547991700000000747650119592435657978057861328125,
        "lon": 32.3376583000000010770236258395016193389892578125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 17:05 UTC 75.0%
  • Duration: 5h 9m
  • Radius: 18 meters
  • Data Points: 11 AIS positions
  • Centroid: 31.5479, 32.3375
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 17.89999999999999857891452847979962825775146484375,
    "duration_minutes": 309,
    "points": 11,
    "centroid": {
        "lat": 31.547874081818182645520209916867315769195556640625,
        "lon": 32.3375284727272713780621415935456752777099609375
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.547991700000000747650119592435657978057861328125,
        "max_lon": 32.3376583000000010770236258395016193389892578125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 16:50 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 5h 24m
  • Data Points: 14 AIS positions
  • Period: 2026-07-30T16:50:43+00:00 to 2026-07-30T22:14:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 324,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-30T16:50:43+00:00",
        "lat": 31.54783499999999918372850515879690647125244140625,
        "lon": 32.33749830000000002883098204620182514190673828125
    },
    "last_point": {
        "ts": "2026-07-30T22:14:44+00:00",
        "lat": 31.547991700000000747650119592435657978057861328125,
        "lon": 32.3376583000000010770236258395016193389892578125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 16:50 UTC 75.0%
  • Duration: 5h 24m
  • Radius: 19 meters
  • Data Points: 14 AIS positions
  • Centroid: 31.5479, 32.3375
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 18.800000000000000710542735760100185871124267578125,
    "duration_minutes": 324,
    "points": 14,
    "centroid": {
        "lat": 31.547867971428569688896459410898387432098388671875,
        "lon": 32.337522728571428842769819311797618865966796875
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.547991700000000747650119592435657978057861328125,
        "max_lon": 32.3376583000000010770236258395016193389892578125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 15:08 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 4h 42m
  • Data Points: 17 AIS positions
  • Period: 2026-07-30T15:08:43+00:00 to 2026-07-30T19:50:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 282,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-07-30T15:08:43+00:00",
        "lat": 31.547941699999999087822288856841623783111572265625,
        "lon": 32.33758329999999858728187973611056804656982421875
    },
    "last_point": {
        "ts": "2026-07-30T19:50:42+00:00",
        "lat": 31.5479567000000002963133738376200199127197265625,
        "lon": 32.33760500000000348563844454474747180938720703125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 15:08 UTC 75.0%
  • Duration: 4h 42m
  • Radius: 16 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5479, 32.3375
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 16.10000000000000142108547152020037174224853515625,
    "duration_minutes": 282,
    "points": 17,
    "centroid": {
        "lat": 31.547873529411763371399501920677721500396728515625,
        "lon": 32.33752998823529622995920362882316112518310546875
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.5479567000000002963133738376200199127197265625,
        "max_lon": 32.33768830000000349400579580105841159820556640625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 14:20 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 5h 30m
  • Data Points: 21 AIS positions
  • Period: 2026-07-30T14:20:42+00:00 to 2026-07-30T19:50:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 330,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-30T14:20:42+00:00",
        "lat": 31.54798329999999850770109333097934722900390625,
        "lon": 32.33767499999999728288457845337688922882080078125
    },
    "last_point": {
        "ts": "2026-07-30T19:50:42+00:00",
        "lat": 31.5479567000000002963133738376200199127197265625,
        "lon": 32.33760500000000348563844454474747180938720703125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 14:20 UTC 75.0%
  • Duration: 5h 30m
  • Radius: 16 meters
  • Data Points: 21 AIS positions
  • Centroid: 31.5479, 32.3375
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 16.199999999999999289457264239899814128875732421875,
    "duration_minutes": 330,
    "points": 21,
    "centroid": {
        "lat": 31.547885314285707636372535489499568939208984375,
        "lon": 32.337547847619049434797489084303379058837890625
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.54798329999999850770109333097934722900390625,
        "max_lon": 32.33768830000000349400579580105841159820556640625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 13:17 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 18m
  • Data Points: 21 AIS positions
  • Period: 2026-07-30T13:17:43+00:00 to 2026-07-30T19:35:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 378,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-30T13:17:43+00:00",
        "lat": 31.5479950000000002319211489520967006683349609375,
        "lon": 32.3376549999999980400389176793396472930908203125
    },
    "last_point": {
        "ts": "2026-07-30T19:35:42+00:00",
        "lat": 31.547908299999999570673026028089225292205810546875,
        "lon": 32.33758329999999858728187973611056804656982421875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 13:17 UTC 75.0%
  • Duration: 6h 18m
  • Radius: 16 meters
  • Data Points: 21 AIS positions
  • Centroid: 31.5479, 32.3376
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 15.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 378,
    "points": 21,
    "centroid": {
        "lat": 31.5478871380952341496595181524753570556640625,
        "lon": 32.3375502285714304662178619764745235443115234375
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.5479950000000002319211489520967006683349609375,
        "max_lon": 32.33768830000000349400579580105841159820556640625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 12:02 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 21 AIS positions
  • Period: 2026-07-30T12:50:41+00:00 to 2026-07-30T19:11:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-30T12:50:41+00:00",
        "lat": 31.547955000000001746229827404022216796875,
        "lon": 32.33760670000000203572199097834527492523193359375
    },
    "last_point": {
        "ts": "2026-07-30T19:11:42+00:00",
        "lat": 31.54792330000000077916411100886762142181396484375,
        "lon": 32.3375800000000026557245291769504547119140625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 12:02 UTC 75.0%
  • Duration: 6h 21m
  • Radius: 16 meters
  • Data Points: 21 AIS positions
  • Centroid: 31.5479, 32.3376
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 15.699999999999999289457264239899814128875732421875,
    "duration_minutes": 381,
    "points": 21,
    "centroid": {
        "lat": 31.54788936190475823195811244659125804901123046875,
        "lon": 32.3375513428571395024846424348652362823486328125
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.5479950000000002319211489520967006683349609375,
        "max_lon": 32.33768830000000349400579580105841159820556640625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 11:14 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 9m
  • Data Points: 19 AIS positions
  • Period: 2026-07-30T11:56:42+00:00 to 2026-07-30T18:05:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 369,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-30T11:56:42+00:00",
        "lat": 31.5480917000000005145921022631227970123291015625,
        "lon": 32.3376549999999980400389176793396472930908203125
    },
    "last_point": {
        "ts": "2026-07-30T18:05:42+00:00",
        "lat": 31.5478217000000000780346454121172428131103515625,
        "lon": 32.33745329999999995607140590436756610870361328125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 11:14 UTC 75.0%
  • Duration: 6h 9m
  • Radius: 22 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.5479, 32.3376
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 21.5,
    "duration_minutes": 369,
    "points": 19,
    "centroid": {
        "lat": 31.547913515789474558914662338793277740478515625,
        "lon": 32.3375651736842115724357427097856998443603515625
    },
    "bbox": {
        "min_lat": 31.5478082999999998037310433574020862579345703125,
        "min_lon": 32.33741830000000305744833895005285739898681640625,
        "max_lat": 31.5480917000000005145921022631227970123291015625,
        "max_lon": 32.33768830000000349400579580105841159820556640625
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 10:02 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 19 AIS positions
  • Period: 2026-07-30T10:44:43+00:00 to 2026-07-30T17:05:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-30T10:44:43+00:00",
        "lat": 31.548191700000000281534084933809936046600341796875,
        "lon": 32.33772330000000039262886275537312030792236328125
    },
    "last_point": {
        "ts": "2026-07-30T17:05:44+00:00",
        "lat": 31.547824999999999562305674771778285503387451171875,
        "lon": 32.3375367000000011330484994687139987945556640625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 10:02 UTC 75.0%
  • Duration: 6h 21m
  • Radius: 27 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.5480, 32.3376
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 27.39999999999999857891452847979962825775146484375,
    "duration_minutes": 381,
    "points": 19,
    "centroid": {
        "lat": 31.547966673684211258432696922682225704193115234375,
        "lon": 32.337604731578949213144369423389434814453125
    },
    "bbox": {
        "min_lat": 31.547824999999999562305674771778285503387451171875,
        "min_lon": 32.33749830000000002883098204620182514190673828125,
        "max_lat": 31.548191700000000281534084933809936046600341796875,
        "max_lon": 32.33772330000000039262886275537312030792236328125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 09:11 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 26 AIS positions
  • Period: 2026-07-30T09:11:41+00:00 to 2026-07-30T15:38:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-07-30T09:11:41+00:00",
        "lat": 31.548313300000000225509211304597556591033935546875,
        "lon": 32.3377832999999981211658450774848461151123046875
    },
    "last_point": {
        "ts": "2026-07-30T15:38:42+00:00",
        "lat": 31.547910000000001673470251262187957763671875,
        "lon": 32.33753999999999706460585002787411212921142578125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 09:11 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 25 meters
  • Data Points: 26 AIS positions
  • Centroid: 31.5481, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 25.300000000000000710542735760100185871124267578125,
    "duration_minutes": 387,
    "points": 26,
    "centroid": {
        "lat": 31.5481075038461540316347964107990264892578125,
        "lon": 32.33766768076923625585550325922667980194091796875
    },
    "bbox": {
        "min_lat": 31.547888300000000327827365254051983356475830078125,
        "min_lon": 32.33753829999999851452230359427630901336669921875,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 08:17 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 24 AIS positions
  • Period: 2026-07-30T08:32:41+00:00 to 2026-07-30T15:08:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-30T08:32:41+00:00",
        "lat": 31.5482200000000005957190296612679958343505859375,
        "lon": 32.33773000000000052978066378273069858551025390625
    },
    "last_point": {
        "ts": "2026-07-30T15:08:43+00:00",
        "lat": 31.547941699999999087822288856841623783111572265625,
        "lon": 32.33758329999999858728187973611056804656982421875
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 08:17 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 28 meters
  • Data Points: 24 AIS positions
  • Centroid: 31.5481, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 28.10000000000000142108547152020037174224853515625,
    "duration_minutes": 396,
    "points": 24,
    "centroid": {
        "lat": 31.548136112499999939018380246125161647796630859375,
        "lon": 32.33768012916667800027425982989370822906494140625
    },
    "bbox": {
        "min_lat": 31.547888300000000327827365254051983356475830078125,
        "min_lon": 32.33758329999999858728187973611056804656982421875,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 07:26 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 24 AIS positions
  • Period: 2026-07-30T07:53:42+00:00 to 2026-07-30T14:20:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-30T07:53:42+00:00",
        "lat": 31.548276699999998839984982623718678951263427734375,
        "lon": 32.337733299999996461338014341890811920166015625
    },
    "last_point": {
        "ts": "2026-07-30T14:20:42+00:00",
        "lat": 31.54798329999999850770109333097934722900390625,
        "lon": 32.33767499999999728288457845337688922882080078125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 07:26 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 27 meters
  • Data Points: 24 AIS positions
  • Centroid: 31.5482, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 27.199999999999999289457264239899814128875732421875,
    "duration_minutes": 387,
    "points": 24,
    "centroid": {
        "lat": 31.548186945833332828215134213678538799285888671875,
        "lon": 32.3376991583333364133068243972957134246826171875
    },
    "bbox": {
        "min_lat": 31.547955000000001746229827404022216796875,
        "min_lon": 32.33760670000000203572199097834527492523193359375,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 06:08 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 25 AIS positions
  • Period: 2026-07-30T06:20:42+00:00 to 2026-07-30T12:50:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-07-30T06:20:42+00:00",
        "lat": 31.54802829999999858046066947281360626220703125,
        "lon": 32.33758499999999713736542616970837116241455078125
    },
    "last_point": {
        "ts": "2026-07-30T12:50:41+00:00",
        "lat": 31.547955000000001746229827404022216796875,
        "lon": 32.33760670000000203572199097834527492523193359375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 06:08 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 29 meters
  • Data Points: 25 AIS positions
  • Centroid: 31.5482, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 28.89999999999999857891452847979962825775146484375,
    "duration_minutes": 390,
    "points": 25,
    "centroid": {
        "lat": 31.548203400000002005754140554927289485931396484375,
        "lon": 32.3376979920000025003901100717484951019287109375
    },
    "bbox": {
        "min_lat": 31.547955000000001746229827404022216796875,
        "min_lon": 32.33758499999999713736542616970837116241455078125,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 05:17 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 25 AIS positions
  • Period: 2026-07-30T05:29:43+00:00 to 2026-07-30T11:56:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-07-30T05:29:43+00:00",
        "lat": 31.54802000000000106183506431989371776580810546875,
        "lon": 32.33760170000000044865373638458549976348876953125
    },
    "last_point": {
        "ts": "2026-07-30T11:56:42+00:00",
        "lat": 31.5480917000000005145921022631227970123291015625,
        "lon": 32.3376549999999980400389176793396472930908203125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 05:17 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 23 meters
  • Data Points: 25 AIS positions
  • Centroid: 31.5482, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 23.10000000000000142108547152020037174224853515625,
    "duration_minutes": 387,
    "points": 25,
    "centroid": {
        "lat": 31.548210199999999758802005089819431304931640625,
        "lon": 32.33769999200000455630288342945277690887451171875
    },
    "bbox": {
        "min_lat": 31.54802000000000106183506431989371776580810546875,
        "min_lon": 32.33758499999999713736542616970837116241455078125,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 03:11 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 22 AIS positions
  • Period: 2026-07-30T03:41:41+00:00 to 2026-07-30T10:02:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-30T03:41:41+00:00",
        "lat": 31.548173299999998420162228285335004329681396484375,
        "lon": 32.33764000000000038426151149906218051910400390625
    },
    "last_point": {
        "ts": "2026-07-30T10:02:42+00:00",
        "lat": 31.54823329999999970141288940794765949249267578125,
        "lon": 32.33771329999999721849235356785356998443603515625
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 03:11 UTC 75.0%
  • Duration: 6h 21m
  • Radius: 27 meters
  • Data Points: 22 AIS positions
  • Centroid: 31.5482, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 27.10000000000000142108547152020037174224853515625,
    "duration_minutes": 381,
    "points": 22,
    "centroid": {
        "lat": 31.5482025727272770154741010628640651702880859375,
        "lon": 32.33769302727272787478796089999377727508544921875
    },
    "bbox": {
        "min_lat": 31.54798329999999850770109333097934722900390625,
        "min_lon": 32.33756670000000355003066943027079105377197265625,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 02:14 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 22 AIS positions
  • Period: 2026-07-30T02:59:41+00:00 to 2026-07-30T09:20:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-30T02:59:41+00:00",
        "lat": 31.548018299999998959037839085794985294342041015625,
        "lon": 32.33760500000000348563844454474747180938720703125
    },
    "last_point": {
        "ts": "2026-07-30T09:20:43+00:00",
        "lat": 31.548186699999998694465830340050160884857177734375,
        "lon": 32.3376549999999980400389176793396472930908203125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 02:14 UTC 75.0%
  • Duration: 6h 21m
  • Radius: 24 meters
  • Data Points: 22 AIS positions
  • Centroid: 31.5482, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 24.39999999999999857891452847979962825775146484375,
    "duration_minutes": 381,
    "points": 22,
    "centroid": {
        "lat": 31.548179318181812647026163176633417606353759765625,
        "lon": 32.337683481818174868749338202178478240966796875
    },
    "bbox": {
        "min_lat": 31.54798329999999850770109333097934722900390625,
        "min_lon": 32.33756670000000355003066943027079105377197265625,
        "max_lat": 31.548313300000000225509211304597556591033935546875,
        "max_lon": 32.3377832999999981211658450774848461151123046875
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 30, 2026 01:53 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 22 AIS positions
  • Period: 2026-07-30T01:53:42+00:00 to 2026-07-30T08:29:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-30T01:53:42+00:00",
        "lat": 31.547998299999999716192178311757743358612060546875,
        "lon": 32.33753329999999692745404900051653385162353515625
    },
    "last_point": {
        "ts": "2026-07-30T08:29:44+00:00",
        "lat": 31.5482583000000005313268047757446765899658203125,
        "lon": 32.33772499999999894271240918897092342376708984375
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 30, 2026 01:53 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 24 meters
  • Data Points: 22 AIS positions
  • Centroid: 31.5481, 32.3377
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 24.10000000000000142108547152020037174224853515625,
    "duration_minutes": 396,
    "points": 22,
    "centroid": {
        "lat": 31.54813681363636845844666822813451290130615234375,
        "lon": 32.3376561363636341184246703051030635833740234375
    },
    "bbox": {
        "min_lat": 31.547944999999998572093318216502666473388671875,
        "min_lon": 32.33753329999999692745404900051653385162353515625,
        "max_lat": 31.54828330000000136124072014354169368743896484375,
        "max_lon": 32.337749999999999772626324556767940521240234375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Sts🛰️✗ Western Black Sea Surveillance Zone
Jul 29, 2026 17:08 UTC 85/100
Vessel A: VAYU 1 (VAYU 1) CAMEROON
Vessel B: TENDUA (TENDUA) Sierra Leone
  • Minimum Distance: 26 meters
  • Average Distance: 31 meters
  • Duration: 1h 6m
  • Period: 2026-07-29T17:08:42+00:00 to 2026-07-29T18:14:41+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Western Black Sea Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (VAYU 1 and TENDUA) maintained close proximity (min 26m, avg 31m) for 66 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 26m, avg 31m
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: Western Black Sea Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-29T23:30:13.563724+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613445600,
        "imo": 9290517,
        "name": "VAYU 1",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 667002199,
        "imo": 9299862,
        "name": "TENDUA",
        "flag": "Sierra Leone"
    },
    "min_distance_m": 25.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 30.699999999999999289457264239899814128875732421875,
    "distance_consistency_m": 3.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 66,
    "overlap_duration_s": 3959,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-29T17:08:42+00:00",
        "end": "2026-07-29T18:14:41+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 31m"
            },
            "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: Western Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VAYU 1 and TENDUA) maintained close proximity (min 26m, avg 31m) for 66 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.5474794000000002824890543706715106964111328125,
            "lon": 32.3370979000000033920514397323131561279296875
        },
        "time_window": {
            "start_ts": "2026-07-29T17:08:42+00:00",
            "end_ts": "2026-07-29T18:14:41+00:00"
        },
        "searched_at": "2026-07-29T23:30:13.563724+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 29, 2026 17:08 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 1h 6m
  • Data Points: 8 AIS positions
  • Period: 2026-07-29T17:08:42+00:00 to 2026-07-29T18:14:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 66,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-29T17:08:42+00:00",
        "lat": 31.547640000000001236912794411182403564453125,
        "lon": 32.337033300000001645457814447581768035888671875
    },
    "last_point": {
        "ts": "2026-07-29T18:14:41+00:00",
        "lat": 31.547421700000001010266714729368686676025390625,
        "lon": 32.33693000000000239424480241723358631134033203125
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 29, 2026 16:50 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 1h 24m
  • Data Points: 9 AIS positions
  • Period: 2026-07-29T16:50:41+00:00 to 2026-07-29T18:14:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 84,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-07-29T16:50:41+00:00",
        "lat": 31.547488300000001260059434571303427219390869140625,
        "lon": 32.337074999999998681232682429254055023193359375
    },
    "last_point": {
        "ts": "2026-07-29T18:14:41+00:00",
        "lat": 31.547421700000001010266714729368686676025390625,
        "lon": 32.33693000000000239424480241723358631134033203125
    }
}
Methodology: 2026.01.18
Sts Western Black Sea Surveillance Zone
Jul 29, 2026 16:45 UTC 85/100
Vessel A: TENDUA (TENDUA) Sierra Leone
Vessel B: VAYU 1 (VAYU 1) CAMEROON
  • Minimum Distance: 23 meters
  • Average Distance: 32 meters
  • Duration: 1h 25m
  • Period: 2026-07-29T16:45:12+00:00 to 2026-07-29T18:10:51+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Western Black Sea Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (TENDUA and VAYU 1) maintained close proximity (min 23m, avg 32m) for 86 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 23m, avg 32m
Duration15/25Duration 86 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667002199,
        "imo": 9299862,
        "name": "TENDUA",
        "flag": "Sierra Leone"
    },
    "vessel_b": {
        "mmsi": 613445600,
        "imo": 9290517,
        "name": "VAYU 1",
        "flag": "CAMEROON"
    },
    "min_distance_m": 23,
    "avg_distance_m": 31.5,
    "distance_consistency_m": 4.5,
    "duration_minutes": 85.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 5139,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-29T16:45:12+00:00",
        "end": "2026-07-29T18:10:51+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 23m, avg 32m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 86 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: Western Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TENDUA and VAYU 1) maintained close proximity (min 23m, avg 32m) for 86 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 29, 2026 15:17 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 2h 57m
  • Data Points: 10 AIS positions
  • Period: 2026-07-29T15:17:42+00:00 to 2026-07-29T18:14:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 177,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-07-29T15:17:42+00:00",
        "lat": 31.547553300000000575664671487174928188323974609375,
        "lon": 32.337254999999998972270986996591091156005859375
    },
    "last_point": {
        "ts": "2026-07-29T18:14:41+00:00",
        "lat": 31.547421700000001010266714729368686676025390625,
        "lon": 32.33693000000000239424480241723358631134033203125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 29, 2026 15:17 UTC 75.0%
  • Duration: 2h 57m
  • Radius: 27 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5475, 32.3370
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 27.300000000000000710542735760100185871124267578125,
    "duration_minutes": 177,
    "points": 10,
    "centroid": {
        "lat": 31.54746015999999286805177689529955387115478515625,
        "lon": 32.33698832999999694948201067745685577392578125
    },
    "bbox": {
        "min_lat": 31.5473649999999992132870829664170742034912109375,
        "min_lon": 32.3368650000000030786395655013620853424072265625,
        "max_lat": 31.547640000000001236912794411182403564453125,
        "max_lon": 32.337254999999998972270986996591091156005859375
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Sts Western Black Sea Surveillance Zone
Jul 29, 2026 14:48 UTC 95/100
Vessel A: VAYU 1 (VAYU 1) CAMEROON
Vessel B: TENDUA (TENDUA) Sierra Leone
  • Minimum Distance: 26 meters
  • Average Distance: 31 meters
  • Duration: 3h 18m
  • Period: 2026-07-29T14:56:42+00:00 to 2026-07-29T18:14:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Western Black Sea Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VAYU 1 and TENDUA) maintained close proximity (min 26m, avg 31m) for 198 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 26m, avg 31m
Duration25/25Duration 198 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613445600,
        "imo": 9290517,
        "name": "VAYU 1",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 667002199,
        "imo": 9299862,
        "name": "TENDUA",
        "flag": "Sierra Leone"
    },
    "min_distance_m": 25.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 30.800000000000000710542735760100185871124267578125,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 198,
    "overlap_duration_s": 11879,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-29T14:56:42+00:00",
        "end": "2026-07-29T18:14:41+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 31m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 198 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: Western Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VAYU 1 and TENDUA) maintained close proximity (min 26m, avg 31m) for 198 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Western Black Sea Surveillance Zone
Jul 29, 2026 14:08 UTC 80.0%
  • Zone: Western Black Sea Surveillance Zone
  • Duration: 4h 6m
  • Data Points: 13 AIS positions
  • Period: 2026-07-29T14:08:42+00:00 to 2026-07-29T18:14:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "dwell_minutes": 246,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-29T14:08:42+00:00",
        "lat": 31.54775670000000076242940849624574184417724609375,
        "lon": 32.33746670000000023037500795908272266387939453125
    },
    "last_point": {
        "ts": "2026-07-29T18:14:41+00:00",
        "lat": 31.547421700000001010266714729368686676025390625,
        "lon": 32.33693000000000239424480241723358631134033203125
    }
}
Methodology: 2026.01.18
Loiter Western Black Sea Surveillance Zone
Jul 29, 2026 14:08 UTC 75.0%
  • Duration: 4h 6m
  • Radius: 48 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.5475, 32.3371
  • Zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 47.89999999999999857891452847979962825775146484375,
    "duration_minutes": 246,
    "points": 13,
    "centroid": {
        "lat": 31.54752640769230964679081807844340801239013671875,
        "lon": 32.3370958999999942307113087736070156097412109375
    },
    "bbox": {
        "min_lat": 31.5473649999999992132870829664170742034912109375,
        "min_lon": 32.3368650000000030786395655013620853424072265625,
        "max_lat": 31.5477716999999984182068146765232086181640625,
        "max_lon": 32.33751170000000030313458410091698169708251953125
    },
    "zone_id": "discovered_156"
}
Methodology: 2026.01.18
Sts Western Black Sea Surveillance Zone
Jul 29, 2026 13:11 UTC 95/100
Vessel A: VAYU 1 (VAYU 1) CAMEROON
Vessel B: TENDUA (TENDUA) Sierra Leone
  • Minimum Distance: 23 meters
  • Average Distance: 30 meters
  • Duration: 4h 54m
  • Period: 2026-07-29T13:20:41+00:00 to 2026-07-29T18:14:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Western Black Sea Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VAYU 1 and TENDUA) maintained close proximity (min 23m, avg 30m) for 294 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 23m, avg 30m
Duration25/25Duration 294 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Western Black Sea Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613445600,
        "imo": 9290517,
        "name": "VAYU 1",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 667002199,
        "imo": 9299862,
        "name": "TENDUA",
        "flag": "Sierra Leone"
    },
    "min_distance_m": 22.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 29.800000000000000710542735760100185871124267578125,
    "distance_consistency_m": 3.5,
    "duration_minutes": 294,
    "overlap_duration_s": 17640,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-29T13:20:41+00:00",
        "end": "2026-07-29T18:14:41+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_156",
    "zone_name": "Western Black Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 23m, avg 30m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 294 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: Western Black Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VAYU 1 and TENDUA) maintained close proximity (min 23m, avg 30m) for 294 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Western Black Sea Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Aug 1 11:26 31.5479 32.3375 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 11:23 31.5479 32.3375 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 11:17 31.5478 32.3374 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 11:11 31.5478 32.3374 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 11:08 31.5478 32.3374 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 10:47 31.5481 32.3376 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 10:32 31.5480 32.3376 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 09:35 31.5482 32.3377 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 08:56 31.5484 32.3377 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 08:44 31.5483 32.3377 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 06:17 31.5480 32.3376 0.0 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 05:35 31.5480 32.3375 0.1 kn 343.0° Western Black Sea Surveillance Zone
Aug 1 04:26 31.5477 32.3370 0.1 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 04:02 31.5477 32.3370 0.0 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 03:53 31.5476 32.3369 0.0 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 03:47 31.5476 32.3370 0.0 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 03:23 31.5474 32.3366 0.0 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 03:20 31.5475 32.3366 0.0 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 02:50 31.5474 32.3365 0.0 kn 313.1° Western Black Sea Surveillance Zone
Aug 1 02:47 31.5474 32.3365 0.1 kn 313.1° Western Black Sea 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.