Intelligence Feed - FleetLeaks

IMO 8934295

Vessel information

Vessel Name VOLGONEFT 237

IMO Number 8934295

MMSI 273347630

Vessel Type Tanker

Flag 🇷🇺 RUSSIA

Call Sign UBRB7

Length 133 m

Beam 17 m

Detected Events (70)

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 15:10 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 4h 37m
Data Points: 5 AIS positions
Period: 2026-09-07T15:10:13+00:00 to 2026-09-07T19:47:14+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 277,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-09-07T15:10:13+00:00",
        "lat": 59.88389169999999950277924654074013233184814453125,
        "lon": 30.212894999999999612327883369289338588714599609375
    },
    "last_point": {
        "ts": "2026-09-07T19:47:14+00:00",
        "lat": 59.88385170000000101708792499266564846038818359375,
        "lon": 30.212888299999999475176082341931760311126708984375
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 14:07 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 39m
Data Points: 7 AIS positions
Period: 2026-09-07T14:07:56+00:00 to 2026-09-07T19:47:14+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 339.30000000000001136868377216160297393798828125,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-09-07T14:07:56+00:00",
        "lat": 59.8839600000000018553691916167736053466796875,
        "lon": 30.21291169999999937090251478366553783416748046875
    },
    "last_point": {
        "ts": "2026-09-07T19:47:14+00:00",
        "lat": 59.88385170000000101708792499266564846038818359375,
        "lon": 30.212888299999999475176082341931760311126708984375
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 13:00 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 36m
Data Points: 15 AIS positions
Period: 2026-09-07T13:10:29+00:00 to 2026-09-07T19:47:14+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 396.80000000000001136868377216160297393798828125,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-09-07T13:10:29+00:00",
        "lat": 59.88392499999999785131876706145703792572021484375,
        "lon": 30.2129733000000015863406588323414325714111328125
    },
    "last_point": {
        "ts": "2026-09-07T19:47:14+00:00",
        "lat": 59.88385170000000101708792499266564846038818359375,
        "lon": 30.212888299999999475176082341931760311126708984375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 7, 2026 13:00 UTC 75.0% ▼

Duration: 6h 36m
Radius: 12 meters
Data Points: 15 AIS positions
Centroid: 59.8839, 30.2130
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 12.300000000000000710542735760100185871124267578125,
    "duration_minutes": 396.80000000000001136868377216160297393798828125,
    "points": 15,
    "centroid": {
        "lat": 59.88389556000000624180756858550012111663818359375,
        "lon": 30.2129542133333330866662436164915561676025390625
    },
    "bbox": {
        "min_lat": 59.88379330000000067002474679611623287200927734375,
        "min_lon": 30.212868300000000232330421567894518375396728515625,
        "max_lat": 59.88397169999999647416188963688910007476806640625,
        "max_lon": 30.213055000000000660520527162589132785797119140625
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 12:01 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 3h 38m
Data Points: 19 AIS positions
Period: 2026-09-07T12:01:13+00:00 to 2026-09-07T15:39:29+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 218.30000000000001136868377216160297393798828125,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-09-07T12:01:13+00:00",
        "lat": 59.88392830000000088830347522161900997161865234375,
        "lon": 30.213031699999998380690158228389918804168701171875
    },
    "last_point": {
        "ts": "2026-09-07T15:39:29+00:00",
        "lat": 59.88393500000000102545527624897658824920654296875,
        "lon": 30.213024999999998243538357201032340526580810546875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 7, 2026 12:01 UTC 75.0% ▼

Duration: 3h 38m
Radius: 9 meters
Data Points: 19 AIS positions
Centroid: 59.8839, 30.2130
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 9.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 218.30000000000001136868377216160297393798828125,
    "points": 19,
    "centroid": {
        "lat": 59.88390552631580021625268273055553436279296875,
        "lon": 30.212985878947375084635496023111045360565185546875
    },
    "bbox": {
        "min_lat": 59.88384500000000087993612396530807018280029296875,
        "min_lon": 30.212868300000000232330421567894518375396728515625,
        "max_lat": 59.88397169999999647416188963688910007476806640625,
        "max_lon": 30.21309000000000111185727291740477085113525390625
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 11:04 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 4h 35m
Data Points: 26 AIS positions
Period: 2026-09-07T11:04:29+00:00 to 2026-09-07T15:39:29+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 275,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-09-07T11:04:29+00:00",
        "lat": 59.8838750000000032969182939268648624420166015625,
        "lon": 30.21300169999999951642166706733405590057373046875
    },
    "last_point": {
        "ts": "2026-09-07T15:39:29+00:00",
        "lat": 59.88393500000000102545527624897658824920654296875,
        "lon": 30.213024999999998243538357201032340526580810546875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 7, 2026 11:04 UTC 75.0% ▼

Duration: 4h 35m
Radius: 19 meters
Data Points: 26 AIS positions
Centroid: 59.8839, 30.2130
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 18.60000000000000142108547152020037174224853515625,
    "duration_minutes": 275,
    "points": 26,
    "centroid": {
        "lat": 59.88391967692309236781511572189629077911376953125,
        "lon": 30.21298974615384480557622737251222133636474609375
    },
    "bbox": {
        "min_lat": 59.88384500000000087993612396530807018280029296875,
        "min_lon": 30.212868300000000232330421567894518375396728515625,
        "max_lat": 59.8840866999999974495949572883546352386474609375,
        "max_lon": 30.21309000000000111185727291740477085113525390625
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 10:23 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 16m
Data Points: 30 AIS positions
Period: 2026-09-07T10:23:17+00:00 to 2026-09-07T15:39:29+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 316.19999999999998863131622783839702606201171875,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-09-07T10:23:17+00:00",
        "lat": 59.88391829999999771416696603409945964813232421875,
        "lon": 30.2130149999999986221155268140137195587158203125
    },
    "last_point": {
        "ts": "2026-09-07T15:39:29+00:00",
        "lat": 59.88393500000000102545527624897658824920654296875,
        "lon": 30.213024999999998243538357201032340526580810546875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 7, 2026 10:23 UTC 75.0% ▼

Duration: 5h 16m
Radius: 18 meters
Data Points: 30 AIS positions
Centroid: 59.8839, 30.2130
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 18.300000000000000710542735760100185871124267578125,
    "duration_minutes": 316.19999999999998863131622783839702606201171875,
    "points": 30,
    "centroid": {
        "lat": 59.8839222166666758084829780273139476776123046875,
        "lon": 30.212989336666669970554721658118069171905517578125
    },
    "bbox": {
        "min_lat": 59.88384500000000087993612396530807018280029296875,
        "min_lon": 30.212868300000000232330421567894518375396728515625,
        "max_lat": 59.8840866999999974495949572883546352386474609375,
        "max_lon": 30.21309000000000111185727291740477085113525390625
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 05:34 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 26m
Data Points: 13 AIS positions
Period: 2026-09-07T05:34:26+00:00 to 2026-09-07T12:01:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 386.80000000000001136868377216160297393798828125,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-09-07T05:34:26+00:00",
        "lat": 59.8838683000000031597664928995072841644287109375,
        "lon": 30.212734999999998564135239575989544391632080078125
    },
    "last_point": {
        "ts": "2026-09-07T12:01:13+00:00",
        "lat": 59.88392830000000088830347522161900997161865234375,
        "lon": 30.213031699999998380690158228389918804168701171875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 7, 2026 05:34 UTC 75.0% ▼

Duration: 6h 26m
Radius: 16 meters
Data Points: 13 AIS positions
Centroid: 59.8839, 30.2130
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 16,
    "duration_minutes": 386.80000000000001136868377216160297393798828125,
    "points": 13,
    "centroid": {
        "lat": 59.88394293076922991758692660368978977203369140625,
        "lon": 30.2129780846153863649306003935635089874267578125
    },
    "bbox": {
        "min_lat": 59.8838683000000031597664928995072841644287109375,
        "min_lon": 30.212734999999998564135239575989544391632080078125,
        "max_lat": 59.8840866999999974495949572883546352386474609375,
        "max_lon": 30.2130666999999988320269039832055568695068359375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 04:13 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 28m
Data Points: 8 AIS positions
Period: 2026-09-07T04:38:24+00:00 to 2026-09-07T11:07:09+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 388.80000000000001136868377216160297393798828125,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-09-07T04:38:24+00:00",
        "lat": 59.88385000000000246700437855906784534454345703125,
        "lon": 30.21285830000000061090759118087589740753173828125
    },
    "last_point": {
        "ts": "2026-09-07T11:07:09+00:00",
        "lat": 59.88392329999999930123522062785923480987548828125,
        "lon": 30.2130666999999988320269039832055568695068359375
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 03:15 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 2h 19m
Data Points: 5 AIS positions
Period: 2026-09-07T03:15:11+00:00 to 2026-09-07T05:34:26+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 139.19999999999998863131622783839702606201171875,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-09-07T03:15:11+00:00",
        "lat": 59.88383830000000074278432293795049190521240234375,
        "lon": 30.212804999999999466808731085620820522308349609375
    },
    "last_point": {
        "ts": "2026-09-07T05:34:26+00:00",
        "lat": 59.8838683000000031597664928995072841644287109375,
        "lon": 30.212734999999998564135239575989544391632080078125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 02:52 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 2h 42m
Data Points: 7 AIS positions
Period: 2026-09-07T02:52:20+00:00 to 2026-09-07T05:34:26+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 162.099999999999994315658113919198513031005859375,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-09-07T02:52:20+00:00",
        "lat": 59.883769999999998390194377861917018890380859375,
        "lon": 30.212711699999999837018549442291259765625
    },
    "last_point": {
        "ts": "2026-09-07T05:34:26+00:00",
        "lat": 59.8838683000000031597664928995072841644287109375,
        "lon": 30.212734999999998564135239575989544391632080078125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 01:36 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 3h 57m
Data Points: 8 AIS positions
Period: 2026-09-07T01:36:46+00:00 to 2026-09-07T05:34:26+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 237.69999999999998863131622783839702606201171875,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-09-07T01:36:46+00:00",
        "lat": 59.88380500000000239424480241723358631134033203125,
        "lon": 30.2127617000000014968463801778852939605712890625
    },
    "last_point": {
        "ts": "2026-09-07T05:34:26+00:00",
        "lat": 59.8838683000000031597664928995072841644287109375,
        "lon": 30.212734999999998564135239575989544391632080078125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 7, 2026 00:18 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 15m
Data Points: 12 AIS positions
Period: 2026-09-07T00:18:41+00:00 to 2026-09-07T05:34:26+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 315.80000000000001136868377216160297393798828125,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-09-07T00:18:41+00:00",
        "lat": 59.88373829999999742312866146676242351531982421875,
        "lon": 30.2126583000000010770236258395016193389892578125
    },
    "last_point": {
        "ts": "2026-09-07T05:34:26+00:00",
        "lat": 59.8838683000000031597664928995072841644287109375,
        "lon": 30.212734999999998564135239575989544391632080078125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 7, 2026 00:18 UTC 75.0% ▼

Duration: 5h 15m
Radius: 9 meters
Data Points: 12 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 9.199999999999999289457264239899814128875732421875,
    "duration_minutes": 315.80000000000001136868377216160297393798828125,
    "points": 12,
    "centroid": {
        "lat": 59.88380763333333334230701439082622528076171875,
        "lon": 30.212747358333334801727687590755522251129150390625
    },
    "bbox": {
        "min_lat": 59.88373829999999742312866146676242351531982421875,
        "min_lon": 30.2126583000000010770236258395016193389892578125,
        "max_lat": 59.8838683000000031597664928995072841644287109375,
        "max_lon": 30.21285830000000061090759118087589740753173828125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 22:37 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 1m
Data Points: 12 AIS positions
Period: 2026-09-06T22:37:05+00:00 to 2026-09-07T04:38:24+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 361.30000000000001136868377216160297393798828125,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-09-06T22:37:05+00:00",
        "lat": 59.88375669999999928450051811523735523223876953125,
        "lon": 30.212598299999999795772964716888964176177978515625
    },
    "last_point": {
        "ts": "2026-09-07T04:38:24+00:00",
        "lat": 59.88385000000000246700437855906784534454345703125,
        "lon": 30.21285830000000061090759118087589740753173828125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 22:37 UTC 75.0% ▼

Duration: 6h 1m
Radius: 9 meters
Data Points: 12 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 9,
    "duration_minutes": 361.30000000000001136868377216160297393798828125,
    "points": 12,
    "centroid": {
        "lat": 59.88379833333334545386605896055698394775390625,
        "lon": 30.212735966666667053459605085663497447967529296875
    },
    "bbox": {
        "min_lat": 59.88373829999999742312866146676242351531982421875,
        "min_lon": 30.212598299999999795772964716888964176177978515625,
        "max_lat": 59.8838650000000001227817847393453121185302734375,
        "max_lon": 30.21285830000000061090759118087589740753173828125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 21:10 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 30m
Data Points: 12 AIS positions
Period: 2026-09-06T21:43:09+00:00 to 2026-09-07T04:13:40+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 390.5,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-09-06T21:43:09+00:00",
        "lat": 59.88371500000000224872565013356506824493408203125,
        "lon": 30.212585000000000690079104970209300518035888671875
    },
    "last_point": {
        "ts": "2026-09-07T04:13:40+00:00",
        "lat": 59.8838166999999970130375004373490810394287109375,
        "lon": 30.212839999999999918145476840436458587646484375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 21:10 UTC 75.0% ▼

Duration: 6h 30m
Radius: 11 meters
Data Points: 12 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 10.800000000000000710542735760100185871124267578125,
    "duration_minutes": 390.5,
    "points": 12,
    "centroid": {
        "lat": 59.88378708333333833024880732409656047821044921875,
        "lon": 30.212713191666665579759865067899227142333984375
    },
    "bbox": {
        "min_lat": 59.88371500000000224872565013356506824493408203125,
        "min_lon": 30.212585000000000690079104970209300518035888671875,
        "max_lat": 59.8838650000000001227817847393453121185302734375,
        "max_lon": 30.212839999999999918145476840436458587646484375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 14:48 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 22m
Data Points: 3 AIS positions
Period: 2026-09-06T14:48:35+00:00 to 2026-09-06T21:10:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 382.19999999999998863131622783839702606201171875,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-09-06T14:48:35+00:00",
        "lat": 59.88382829999999756864781375043094158172607421875,
        "lon": 30.212695000000000078443918027915060520172119140625
    },
    "last_point": {
        "ts": "2026-09-06T21:10:50+00:00",
        "lat": 59.8838683000000031597664928995072841644287109375,
        "lon": 30.21290330000000068366716732271015644073486328125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 10:38 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 4h 15m
Data Points: 3 AIS positions
Period: 2026-09-06T10:38:22+00:00 to 2026-09-06T14:54:05+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 255.69999999999998863131622783839702606201171875,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-09-06T10:38:22+00:00",
        "lat": 59.8838482999999968114934745244681835174560546875,
        "lon": 30.2128517000000016423655324615538120269775390625
    },
    "last_point": {
        "ts": "2026-09-06T14:54:05+00:00",
        "lat": 59.88383329999999915571606834419071674346923828125,
        "lon": 30.212876699999998919565769028849899768829345703125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 09:08 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 45m
Data Points: 5 AIS positions
Period: 2026-09-06T09:08:36+00:00 to 2026-09-06T14:54:05+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 345.5,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-09-06T09:08:36+00:00",
        "lat": 59.88389500000000253976395470090210437774658203125,
        "lon": 30.2128833000000014408215065486729145050048828125
    },
    "last_point": {
        "ts": "2026-09-06T14:54:05+00:00",
        "lat": 59.88383329999999915571606834419071674346923828125,
        "lon": 30.212876699999998919565769028849899768829345703125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 07:07 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 3h 31m
Data Points: 4 AIS positions
Period: 2026-09-06T07:07:14+00:00 to 2026-09-06T10:38:22+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 211.099999999999994315658113919198513031005859375,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-09-06T07:07:14+00:00",
        "lat": 59.88375500000000073441697168163955211639404296875,
        "lon": 30.212676699999999385681803687475621700286865234375
    },
    "last_point": {
        "ts": "2026-09-06T10:38:22+00:00",
        "lat": 59.8838482999999968114934745244681835174560546875,
        "lon": 30.2128517000000016423655324615538120269775390625
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 06:05 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 4h 32m
Data Points: 11 AIS positions
Period: 2026-09-06T06:05:25+00:00 to 2026-09-06T10:38:22+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 272.8999999999999772626324556767940521240234375,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-09-06T06:05:25+00:00",
        "lat": 59.8837232999999997673512552864849567413330078125,
        "lon": 30.21276830000000046538843889720737934112548828125
    },
    "last_point": {
        "ts": "2026-09-06T10:38:22+00:00",
        "lat": 59.8838482999999968114934745244681835174560546875,
        "lon": 30.2128517000000016423655324615538120269775390625
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 06:05 UTC 75.0% ▼

Duration: 4h 32m
Radius: 13 meters
Data Points: 11 AIS positions
Centroid: 59.8838, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 13.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 272.8999999999999772626324556767940521240234375,
    "points": 11,
    "centroid": {
        "lat": 59.88378030000000507016011397354304790496826171875,
        "lon": 30.21281045454545477468855096958577632904052734375
    },
    "bbox": {
        "min_lat": 59.8837132999999965932147460989654064178466796875,
        "min_lon": 30.212676699999999385681803687475621700286865234375,
        "max_lat": 59.88389500000000253976395470090210437774658203125,
        "max_lon": 30.2129182999999983394445735029876232147216796875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 05:02 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 35m
Data Points: 14 AIS positions
Period: 2026-09-06T05:02:35+00:00 to 2026-09-06T10:38:22+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 335.80000000000001136868377216160297393798828125,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-09-06T05:02:35+00:00",
        "lat": 59.88376170000000087156877270899713039398193359375,
        "lon": 30.2125300000000009958966984413564205169677734375
    },
    "last_point": {
        "ts": "2026-09-06T10:38:22+00:00",
        "lat": 59.8838482999999968114934745244681835174560546875,
        "lon": 30.2128517000000016423655324615538120269775390625
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 05:02 UTC 75.0% ▼

Duration: 5h 35m
Radius: 15 meters
Data Points: 14 AIS positions
Centroid: 59.8838, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 14.800000000000000710542735760100185871124267578125,
    "duration_minutes": 335.80000000000001136868377216160297393798828125,
    "points": 14,
    "centroid": {
        "lat": 59.88377582857142300554187386296689510345458984375,
        "lon": 30.21276809285713937924811034463346004486083984375
    },
    "bbox": {
        "min_lat": 59.8837132999999965932147460989654064178466796875,
        "min_lon": 30.212514999999999787405613460578024387359619140625,
        "max_lat": 59.88389500000000253976395470090210437774658203125,
        "max_lon": 30.2129182999999983394445735029876232147216796875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 03:16 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 55m
Data Points: 14 AIS positions
Period: 2026-09-06T03:16:21+00:00 to 2026-09-06T09:12:03+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 355.69999999999998863131622783839702606201171875,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-09-06T03:16:21+00:00",
        "lat": 59.8838700000000017098500393331050872802734375,
        "lon": 30.21277500000000060254023992456495761871337890625
    },
    "last_point": {
        "ts": "2026-09-06T09:12:03+00:00",
        "lat": 59.8838549999999969486452755518257617950439453125,
        "lon": 30.2129182999999983394445735029876232147216796875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 03:16 UTC 75.0% ▼

Duration: 5h 55m
Radius: 15 meters
Data Points: 14 AIS positions
Centroid: 59.8838, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 14.699999999999999289457264239899814128875732421875,
    "duration_minutes": 355.69999999999998863131622783839702606201171875,
    "points": 14,
    "centroid": {
        "lat": 59.88377737857143046085184323601424694061279296875,
        "lon": 30.212762614285711748607354820705950260162353515625
    },
    "bbox": {
        "min_lat": 59.8837132999999965932147460989654064178466796875,
        "min_lon": 30.212514999999999787405613460578024387359619140625,
        "max_lat": 59.88389500000000253976395470090210437774658203125,
        "max_lon": 30.2129182999999983394445735029876232147216796875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 01:02 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 5m
Data Points: 14 AIS positions
Period: 2026-09-06T01:02:01+00:00 to 2026-09-06T07:07:14+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 365.19999999999998863131622783839702606201171875,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-09-06T01:02:01+00:00",
        "lat": 59.88379830000000225709300138987600803375244140625,
        "lon": 30.212765000000000981117409537546336650848388671875
    },
    "last_point": {
        "ts": "2026-09-06T07:07:14+00:00",
        "lat": 59.88375500000000073441697168163955211639404296875,
        "lon": 30.212676699999999385681803687475621700286865234375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 01:02 UTC 75.0% ▼

Duration: 6h 5m
Radius: 13 meters
Data Points: 14 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 12.699999999999999289457264239899814128875732421875,
    "duration_minutes": 365.19999999999998863131622783839702606201171875,
    "points": 14,
    "centroid": {
        "lat": 59.88376844999999093488440848886966705322265625,
        "lon": 30.212740357142848779403720982372760772705078125
    },
    "bbox": {
        "min_lat": 59.8837132999999965932147460989654064178466796875,
        "min_lon": 30.212514999999999787405613460578024387359619140625,
        "max_lat": 59.8838700000000017098500393331050872802734375,
        "max_lon": 30.212846700000000055297277867794036865234375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 6, 2026 00:14 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 23m
Data Points: 18 AIS positions
Period: 2026-09-06T00:43:50+00:00 to 2026-09-06T07:07:14+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 383.3999999999999772626324556767940521240234375,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-09-06T00:43:50+00:00",
        "lat": 59.88379499999999922010829322971403598785400390625,
        "lon": 30.212701700000000215595719055272638797760009765625
    },
    "last_point": {
        "ts": "2026-09-06T07:07:14+00:00",
        "lat": 59.88375500000000073441697168163955211639404296875,
        "lon": 30.212676699999999385681803687475621700286865234375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 6, 2026 00:14 UTC 75.0% ▼

Duration: 6h 23m
Radius: 13 meters
Data Points: 18 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 12.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 383.3999999999999772626324556767940521240234375,
    "points": 18,
    "centroid": {
        "lat": 59.88378073888888053488699370063841342926025390625,
        "lon": 30.2127396333333280153965461067855358123779296875
    },
    "bbox": {
        "min_lat": 59.8837132999999965932147460989654064178466796875,
        "min_lon": 30.212514999999999787405613460578024387359619140625,
        "max_lat": 59.8838700000000017098500393331050872802734375,
        "max_lon": 30.212846700000000055297277867794036865234375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga/St. Petersburg Approach

Sep 6, 2026 00:12 UTC 80/100 ▼

Vessel A: MMSI 273353550 (EUROSTAR 4 MARIA) RUSSIA

Vessel B: IMO 8934295 (VOLGONEFT 237) RUSSIA

Minimum Distance: 77 meters
Average Distance: 79 meters
Duration: 54 minutes
Period: 2026-09-06T00:12:48+00:00 to 2026-09-06T01:07:08+00:00
Vessel A Avg Speed: 0.3 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ust-Luga/St. Petersburg Approach

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 77m, avg 79m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 77m, avg 79m
Duration	10/25	Duration 54 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±2m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ust-Luga/St. Petersburg Approach

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG • Acquired: 2026-09-05T15:31:23.309243Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-09-06T06:30:01.753292+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273353550,
        "name": "EUROSTAR 4 MARIA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273347630,
        "imo": 8934295,
        "name": "VOLGONEFT 237",
        "flag": "RUSSIA"
    },
    "min_distance_m": 77.099999999999994315658113919198513031005859375,
    "avg_distance_m": 78.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 2.5,
    "duration_minutes": 54.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 3260,
    "speed_a_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-06T00:12:48+00:00",
        "end": "2026-09-06T01:07:08+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 77m, avg 79m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 77m, avg 79m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.8834834000000029163857107050716876983642578125,
            "lon": 30.2126133000000010042640496976673603057861328125
        },
        "time_window": {
            "start_ts": "2026-09-06T00:12:48+00:00",
            "end_ts": "2026-09-06T01:07:08+00:00"
        },
        "searched_at": "2026-09-06T06:30:01.753292+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG",
        "scene_datetime": "2026-09-05T15:31:23.309243Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 28.99906899999999865258359932340681552886962890625,
            "min_lat": 59.50836199999999820420271134935319423675537109375,
            "max_lon": 34.32775500000000334921423927880823612213134765625,
            "max_lat": 61.4367519999999984747773851267993450164794921875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1225388_thumbnail_20260906063007.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1225388_thumbnail_20260906063007.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 5, 2026 23:05 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 29m
Data Points: 15 AIS positions
Period: 2026-09-05T23:49:31+00:00 to 2026-09-06T06:19:19+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 389.80000000000001136868377216160297393798828125,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-09-05T23:49:31+00:00",
        "lat": 59.8838099999999968758856994099915027618408203125,
        "lon": 30.212610000000001519993020338006317615509033203125
    },
    "last_point": {
        "ts": "2026-09-06T06:19:19+00:00",
        "lat": 59.88376170000000087156877270899713039398193359375,
        "lon": 30.21278170000000073969204095192253589630126953125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 5, 2026 23:05 UTC 75.0% ▼

Duration: 6h 29m
Radius: 12 meters
Data Points: 15 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 11.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 389.80000000000001136868377216160297393798828125,
    "points": 15,
    "centroid": {
        "lat": 59.88379855333334234046560595743358135223388671875,
        "lon": 30.212725219999999382025634986348450183868408203125
    },
    "bbox": {
        "min_lat": 59.8837232999999997673512552864849567413330078125,
        "min_lon": 30.212514999999999787405613460578024387359619140625,
        "max_lat": 59.8838700000000017098500393331050872802734375,
        "max_lon": 30.212836700000000433874447480775415897369384765625
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga/St. Petersburg Approach

Sep 5, 2026 23:03 UTC 95/100 ▼

Vessel A: MMSI 273353550 (EUROSTAR 4 MARIA) RUSSIA

Vessel B: IMO 8934295 (VOLGONEFT 237) RUSSIA

Minimum Distance: 64 meters
Average Distance: 73 meters
Duration: 2h 3m
Period: 2026-09-05T23:03:28+00:00 to 2026-09-06T01:07:08+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ust-Luga/St. Petersburg Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 64m, avg 73m) for 124 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 64m, avg 73m
Duration	25/25	Duration 124 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±6m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ust-Luga/St. Petersburg Approach

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG • Acquired: 2026-09-05T15:31:23.309243Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-09-06T05:45:02.011405+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273353550,
        "name": "EUROSTAR 4 MARIA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273347630,
        "imo": 8934295,
        "name": "VOLGONEFT 237",
        "flag": "RUSSIA"
    },
    "min_distance_m": 64.099999999999994315658113919198513031005859375,
    "avg_distance_m": 73.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 123.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 7420,
    "speed_a_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-05T23:03:28+00:00",
        "end": "2026-09-06T01:07:08+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 64m, avg 73m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 124 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 64m, avg 73m) for 124 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.88346030000000297377482638694345951080322265625,
            "lon": 30.21256939999999957535692374221980571746826171875
        },
        "time_window": {
            "start_ts": "2026-09-05T23:03:28+00:00",
            "end_ts": "2026-09-06T01:07:08+00:00"
        },
        "searched_at": "2026-09-06T05:45:02.011405+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG",
        "scene_datetime": "2026-09-05T15:31:23.309243Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 28.99906899999999865258359932340681552886962890625,
            "min_lat": 59.50836199999999820420271134935319423675537109375,
            "max_lon": 34.32775500000000334921423927880823612213134765625,
            "max_lat": 61.4367519999999984747773851267993450164794921875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1224935_thumbnail_20260906054506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1224935_thumbnail_20260906054506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga/St. Petersburg Approach

Sep 5, 2026 22:33 UTC 95/100 ▼

Vessel A: MMSI 273353550 (EUROSTAR 4 MARIA) RUSSIA

Vessel B: IMO 8934295 (VOLGONEFT 237) RUSSIA

Minimum Distance: 64 meters
Average Distance: 73 meters
Duration: 2h 33m
Period: 2026-09-05T22:33:28+00:00 to 2026-09-06T01:07:08+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ust-Luga/St. Petersburg Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 64m, avg 73m) for 154 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 64m, avg 73m
Duration	25/25	Duration 154 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±5m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ust-Luga/St. Petersburg Approach

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG • Acquired: 2026-09-05T15:31:23.309243Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-09-06T04:45:04.322839+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273353550,
        "name": "EUROSTAR 4 MARIA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273347630,
        "imo": 8934295,
        "name": "VOLGONEFT 237",
        "flag": "RUSSIA"
    },
    "min_distance_m": 64.099999999999994315658113919198513031005859375,
    "avg_distance_m": 73.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 4.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 153.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 9220,
    "speed_a_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-05T22:33:28+00:00",
        "end": "2026-09-06T01:07:08+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 64m, avg 73m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 154 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 64m, avg 73m) for 154 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.883485100000001466469257138669490814208984375,
            "lon": 30.21259570000000138634277391247451305389404296875
        },
        "time_window": {
            "start_ts": "2026-09-05T22:33:28+00:00",
            "end_ts": "2026-09-06T01:07:08+00:00"
        },
        "searched_at": "2026-09-06T04:45:04.322839+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG",
        "scene_datetime": "2026-09-05T15:31:23.309243Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 28.99906899999999865258359932340681552886962890625,
            "min_lat": 59.50836199999999820420271134935319423675537109375,
            "max_lon": 34.32775500000000334921423927880823612213134765625,
            "max_lat": 61.4367519999999984747773851267993450164794921875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1224762_thumbnail_20260906044509.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1224762_thumbnail_20260906044509.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 5, 2026 22:03 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 27m
Data Points: 22 AIS positions
Period: 2026-09-05T22:44:05+00:00 to 2026-09-06T05:11:55+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 387.80000000000001136868377216160297393798828125,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-09-05T22:44:05+00:00",
        "lat": 59.883921700000001919761416502296924591064453125,
        "lon": 30.21274329999999963547452352941036224365234375
    },
    "last_point": {
        "ts": "2026-09-06T05:11:55+00:00",
        "lat": 59.88378329999999749588823760859668254852294921875,
        "lon": 30.212514999999999787405613460578024387359619140625
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 5, 2026 22:03 UTC 75.0% ▼

Duration: 6h 27m
Radius: 14 meters
Data Points: 22 AIS positions
Centroid: 59.8838, 30.2127
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 14.199999999999999289457264239899814128875732421875,
    "duration_minutes": 387.80000000000001136868377216160297393798828125,
    "points": 22,
    "centroid": {
        "lat": 59.88381766363637126460162107832729816436767578125,
        "lon": 30.212734236363640860645318753086030483245849609375
    },
    "bbox": {
        "min_lat": 59.8836916999999999688952811993658542633056640625,
        "min_lon": 30.212514999999999787405613460578024387359619140625,
        "max_lat": 59.883921700000001919761416502296924591064453125,
        "max_lon": 30.2128450000000015052137314341962337493896484375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Sts Ust-Luga/St. Petersburg Approach

Sep 5, 2026 21:26 UTC 95/100 ▼

Vessel A: MMSI 273353550 (EUROSTAR 4 MARIA) RUSSIA

Vessel B: IMO 8934295 (VOLGONEFT 237) RUSSIA

Minimum Distance: 64 meters
Average Distance: 74 meters
Duration: 3h 40m
Period: 2026-09-05T21:26:48+00:00 to 2026-09-06T01:07:08+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.1 knots
Zone: Ust-Luga/St. Petersburg Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 64m, avg 74m) for 220 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 64m, avg 74m
Duration	25/25	Duration 220 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±5m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273353550,
        "name": "EUROSTAR 4 MARIA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273347630,
        "imo": 8934295,
        "name": "VOLGONEFT 237",
        "flag": "RUSSIA"
    },
    "min_distance_m": 64.099999999999994315658113919198513031005859375,
    "avg_distance_m": 74,
    "distance_consistency_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 220.30000000000001136868377216160297393798828125,
    "overlap_duration_s": 13220,
    "speed_a_avg": 0.200000000000000011102230246251565404236316680908203125,
    "speed_a_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-09-05T21:26:48+00:00",
        "end": "2026-09-06T01:07:08+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 64m, avg 74m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 220 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (EUROSTAR 4 MARIA and VOLGONEFT 237) maintained close proximity (min 64m, avg 74m) for 220 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 5, 2026 21:18 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 58m
Data Points: 32 AIS positions
Period: 2026-09-05T21:18:16+00:00 to 2026-09-06T03:16:21+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 358.1000000000000227373675443232059478759765625,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-09-05T21:18:16+00:00",
        "lat": 59.883818300000001499938662163913249969482421875,
        "lon": 30.212714999999999321289578801952302455902099609375
    },
    "last_point": {
        "ts": "2026-09-06T03:16:21+00:00",
        "lat": 59.8838700000000017098500393331050872802734375,
        "lon": 30.21277500000000060254023992456495761871337890625
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 5, 2026 21:18 UTC 75.0% ▼

Duration: 5h 58m
Radius: 17 meters
Data Points: 32 AIS positions
Centroid: 59.8838, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 16.89999999999999857891452847979962825775146484375,
    "duration_minutes": 358.1000000000000227373675443232059478759765625,
    "points": 32,
    "centroid": {
        "lat": 59.8838383906250015797922969795763492584228515625,
        "lon": 30.212769268750005124957169755361974239349365234375
    },
    "bbox": {
        "min_lat": 59.8836916999999999688952811993658542633056640625,
        "min_lon": 30.212610000000001519993020338006317615509033203125,
        "max_lat": 59.883921700000001919761416502296924591064453125,
        "max_lon": 30.2129249999999984765963745303452014923095703125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 5, 2026 16:16 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 35m
Data Points: 18 AIS positions
Period: 2026-09-05T16:24:12+00:00 to 2026-09-05T22:59:58+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 395.80000000000001136868377216160297393798828125,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-09-05T16:24:12+00:00",
        "lat": 59.88381170000000253139660344459116458892822265625,
        "lon": 30.21273169999999907986421021632850170135498046875
    },
    "last_point": {
        "ts": "2026-09-05T22:59:58+00:00",
        "lat": 59.8837917000000032885509426705539226531982421875,
        "lon": 30.2127933000000012953023542650043964385986328125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 5, 2026 16:16 UTC 75.0% ▼

Duration: 6h 35m
Radius: 9 meters
Data Points: 18 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 8.5,
    "duration_minutes": 395.80000000000001136868377216160297393798828125,
    "points": 18,
    "centroid": {
        "lat": 59.88386074444444062692127772606909275054931640625,
        "lon": 30.2127870388888908337321481667459011077880859375
    },
    "bbox": {
        "min_lat": 59.8837917000000032885509426705539226531982421875,
        "min_lon": 30.212695000000000078443918027915060520172119140625,
        "max_lat": 59.883921700000001919761416502296924591064453125,
        "max_lon": 30.2129249999999984765963745303452014923095703125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 5, 2026 14:08 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 2h 15m
Data Points: 3 AIS positions
Period: 2026-09-05T14:08:52+00:00 to 2026-09-05T16:24:12+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 135.30000000000001136868377216160297393798828125,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-09-05T14:08:52+00:00",
        "lat": 59.88385000000000246700437855906784534454345703125,
        "lon": 30.2127966999999983954694471322000026702880859375
    },
    "last_point": {
        "ts": "2026-09-05T16:24:12+00:00",
        "lat": 59.88381170000000253139660344459116458892822265625,
        "lon": 30.21273169999999907986421021632850170135498046875
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 08:14 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 3h 28m
Data Points: 2 AIS positions
Period: 2026-09-03T08:14:06+00:00 to 2026-09-03T11:42:08+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 208,
    "points_in_zone": 2,
    "first_point": {
        "ts": "2026-09-03T08:14:06+00:00",
        "lat": 59.88389829999999847132130526006221771240234375,
        "lon": 30.212828300000001746639100019820034503936767578125
    },
    "last_point": {
        "ts": "2026-09-03T11:42:08+00:00",
        "lat": 59.8839033000000000583895598538219928741455078125,
        "lon": 30.212888299999999475176082341931760311126708984375
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 07:17 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 4h 24m
Data Points: 5 AIS positions
Period: 2026-09-03T07:17:35+00:00 to 2026-09-03T11:42:08+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 264.6000000000000227373675443232059478759765625,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-09-03T07:17:35+00:00",
        "lat": 59.88384500000000087993612396530807018280029296875,
        "lon": 30.21277500000000060254023992456495761871337890625
    },
    "last_point": {
        "ts": "2026-09-03T11:42:08+00:00",
        "lat": 59.8839033000000000583895598538219928741455078125,
        "lon": 30.212888299999999475176082341931760311126708984375
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 05:02 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 50m
Data Points: 6 AIS positions
Period: 2026-09-03T05:51:44+00:00 to 2026-09-03T11:42:08+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 350.3999999999999772626324556767940521240234375,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-09-03T05:51:44+00:00",
        "lat": 59.8838267000000001871740096248686313629150390625,
        "lon": 30.2128450000000015052137314341962337493896484375
    },
    "last_point": {
        "ts": "2026-09-03T11:42:08+00:00",
        "lat": 59.8839033000000000583895598538219928741455078125,
        "lon": 30.212888299999999475176082341931760311126708984375
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 04:11 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 4h 2m
Data Points: 17 AIS positions
Period: 2026-09-03T04:11:21+00:00 to 2026-09-03T08:14:06+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 242.80000000000001136868377216160297393798828125,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-09-03T04:11:21+00:00",
        "lat": 59.88383830000000074278432293795049190521240234375,
        "lon": 30.2128067000000015696059563197195529937744140625
    },
    "last_point": {
        "ts": "2026-09-03T08:14:06+00:00",
        "lat": 59.88389829999999847132130526006221771240234375,
        "lon": 30.212828300000001746639100019820034503936767578125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 3, 2026 04:11 UTC 75.0% ▼

Duration: 4h 2m
Radius: 8 meters
Data Points: 17 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 8.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 242.80000000000001136868377216160297393798828125,
    "points": 17,
    "centroid": {
        "lat": 59.88385156470588555066569824703037738800048828125,
        "lon": 30.212795882352946108539981651119887828826904296875
    },
    "bbox": {
        "min_lat": 59.8838132999999999128704075701534748077392578125,
        "min_lon": 30.21273000000000052978066378273069858551025390625,
        "max_lat": 59.88389829999999847132130526006221771240234375,
        "max_lon": 30.2129249999999984765963745303452014923095703125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 03:06 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 5h 7m
Data Points: 22 AIS positions
Period: 2026-09-03T03:06:52+00:00 to 2026-09-03T08:14:06+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 307.19999999999998863131622783839702606201171875,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-09-03T03:06:52+00:00",
        "lat": 59.8839382999999969570126268081367015838623046875,
        "lon": 30.21277500000000060254023992456495761871337890625
    },
    "last_point": {
        "ts": "2026-09-03T08:14:06+00:00",
        "lat": 59.88389829999999847132130526006221771240234375,
        "lon": 30.212828300000001746639100019820034503936767578125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 3, 2026 03:06 UTC 75.0% ▼

Duration: 5h 7m
Radius: 9 meters
Data Points: 22 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 9.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 307.19999999999998863131622783839702606201171875,
    "points": 22,
    "centroid": {
        "lat": 59.883859613636360563759808428585529327392578125,
        "lon": 30.212784850000002023762135650031268596649169921875
    },
    "bbox": {
        "min_lat": 59.8838132999999999128704075701534748077392578125,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.8839382999999969570126268081367015838623046875,
        "max_lon": 30.2129249999999984765963745303452014923095703125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 02:04 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 9m
Data Points: 26 AIS positions
Period: 2026-09-03T02:04:59+00:00 to 2026-09-03T08:14:06+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 369.1000000000000227373675443232059478759765625,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-09-03T02:04:59+00:00",
        "lat": 59.8839583000000033052856451831758022308349609375,
        "lon": 30.2127100000000012869350030086934566497802734375
    },
    "last_point": {
        "ts": "2026-09-03T08:14:06+00:00",
        "lat": 59.88389829999999847132130526006221771240234375,
        "lon": 30.212828300000001746639100019820034503936767578125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 3, 2026 02:04 UTC 75.0% ▼

Duration: 6h 9m
Radius: 13 meters
Data Points: 26 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 12.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 369.1000000000000227373675443232059478759765625,
    "points": 26,
    "centroid": {
        "lat": 59.883871273076920260791666805744171142578125,
        "lon": 30.2127848076923015696593211032450199127197265625
    },
    "bbox": {
        "min_lat": 59.8838132999999999128704075701534748077392578125,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.88397830000000254813130595721304416656494140625,
        "max_lon": 30.2129249999999984765963745303452014923095703125
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 01:15 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 31m
Data Points: 29 AIS positions
Period: 2026-09-03T01:42:50+00:00 to 2026-09-03T08:14:06+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 391.30000000000001136868377216160297393798828125,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-09-03T01:42:50+00:00",
        "lat": 59.88392999999999943838702165521681308746337890625,
        "lon": 30.21294329999999916935848887078464031219482421875
    },
    "last_point": {
        "ts": "2026-09-03T08:14:06+00:00",
        "lat": 59.88389829999999847132130526006221771240234375,
        "lon": 30.212828300000001746639100019820034503936767578125
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 3, 2026 01:15 UTC 75.0% ▼

Duration: 6h 31m
Radius: 13 meters
Data Points: 29 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 12.699999999999999289457264239899814128875732421875,
    "duration_minutes": 391.30000000000001136868377216160297393798828125,
    "points": 29,
    "centroid": {
        "lat": 59.883871255172408609723788686096668243408203125,
        "lon": 30.212792182758615666671175858937203884124755859375
    },
    "bbox": {
        "min_lat": 59.88380000000000080717654782347381114959716796875,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.88397830000000254813130595721304416656494140625,
        "max_lon": 30.21294329999999916935848887078464031219482421875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 3, 2026 00:15 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 34m
Data Points: 29 AIS positions
Period: 2026-09-03T00:43:28+00:00 to 2026-09-03T07:17:35+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 394.1000000000000227373675443232059478759765625,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-09-03T00:43:28+00:00",
        "lat": 59.8839033000000000583895598538219928741455078125,
        "lon": 30.21294999999999930651028989814221858978271484375
    },
    "last_point": {
        "ts": "2026-09-03T07:17:35+00:00",
        "lat": 59.88384500000000087993612396530807018280029296875,
        "lon": 30.21277500000000060254023992456495761871337890625
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 3, 2026 00:15 UTC 75.0% ▼

Duration: 6h 34m
Radius: 12 meters
Data Points: 29 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 12.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 394.1000000000000227373675443232059478759765625,
    "points": 29,
    "centroid": {
        "lat": 59.88387493103449088494016905315220355987548828125,
        "lon": 30.2127929896551705724050407297909259796142578125
    },
    "bbox": {
        "min_lat": 59.88380000000000080717654782347381114959716796875,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.88397830000000254813130595721304416656494140625,
        "max_lon": 30.21294999999999930651028989814221858978271484375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 2, 2026 23:06 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 27m
Data Points: 37 AIS positions
Period: 2026-09-02T23:24:26+00:00 to 2026-09-03T05:51:44+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 387.30000000000001136868377216160297393798828125,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-09-02T23:24:26+00:00",
        "lat": 59.8838200000000000500222085975110530853271484375,
        "lon": 30.212810000000001053876985679380595684051513671875
    },
    "last_point": {
        "ts": "2026-09-03T05:51:44+00:00",
        "lat": 59.8838267000000001871740096248686313629150390625,
        "lon": 30.2128450000000015052137314341962337493896484375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 2, 2026 23:06 UTC 75.0% ▼

Duration: 6h 27m
Radius: 13 meters
Data Points: 37 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 13.199999999999999289457264239899814128875732421875,
    "duration_minutes": 387.30000000000001136868377216160297393798828125,
    "points": 37,
    "centroid": {
        "lat": 59.88386859189190403185421018861234188079833984375,
        "lon": 30.212802162162166297321164165623486042022705078125
    },
    "bbox": {
        "min_lat": 59.883773300000001427179086022078990936279296875,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.88397830000000254813130595721304416656494140625,
        "max_lon": 30.21294999999999930651028989814221858978271484375
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 2, 2026 22:16 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 32m
Data Points: 44 AIS positions
Period: 2026-09-02T22:30:29+00:00 to 2026-09-03T05:02:57+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 392.5,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-09-02T22:30:29+00:00",
        "lat": 59.8839382999999969570126268081367015838623046875,
        "lon": 30.21278829999999970823409967124462127685546875
    },
    "last_point": {
        "ts": "2026-09-03T05:02:57+00:00",
        "lat": 59.88387829999999922847564448602497577667236328125,
        "lon": 30.21273000000000052978066378273069858551025390625
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 2, 2026 22:16 UTC 75.0% ▼

Duration: 6h 32m
Radius: 13 meters
Data Points: 44 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 13.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 392.5,
    "points": 44,
    "centroid": {
        "lat": 59.883870972727294201831682585179805755615234375,
        "lon": 30.212809015909090959439708967693150043487548828125
    },
    "bbox": {
        "min_lat": 59.883773300000001427179086022078990936279296875,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.88397830000000254813130595721304416656494140625,
        "max_lon": 30.21296829999999999927240423858165740966796875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 2, 2026 21:23 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 37m
Data Points: 40 AIS positions
Period: 2026-09-02T21:41:04+00:00 to 2026-09-03T04:18:20+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 397.30000000000001136868377216160297393798828125,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-09-02T21:41:04+00:00",
        "lat": 59.88388330000000081554389907978475093841552734375,
        "lon": 30.21278829999999970823409967124462127685546875
    },
    "last_point": {
        "ts": "2026-09-03T04:18:20+00:00",
        "lat": 59.88387329999999764140738989226520061492919921875,
        "lon": 30.212794999999999845385900698602199554443359375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 2, 2026 21:23 UTC 75.0% ▼

Duration: 6h 37m
Radius: 13 meters
Data Points: 40 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 13.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 397.30000000000001136868377216160297393798828125,
    "points": 40,
    "centroid": {
        "lat": 59.8838734849999951848076307214796543121337890625,
        "lon": 30.212819789999997510676621459424495697021484375
    },
    "bbox": {
        "min_lat": 59.883773300000001427179086022078990936279296875,
        "min_lon": 30.2127100000000012869350030086934566497802734375,
        "max_lat": 59.88397830000000254813130595721304416656494140625,
        "max_lon": 30.21296829999999999927240423858165740966796875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga/St. Petersburg Approach

Sep 2, 2026 17:53 UTC 80.0% ▼

Zone: Ust-Luga/St. Petersburg Approach
Duration: 6h 27m
Data Points: 22 AIS positions
Period: 2026-09-02T17:53:00+00:00 to 2026-09-03T00:20:06+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-09-02T17:53:00+00:00",
        "lat": 59.88384669999999943001967039890587329864501953125,
        "lon": 30.21286500000000074805939220823347568511962890625
    },
    "last_point": {
        "ts": "2026-09-03T00:20:06+00:00",
        "lat": 59.883908300000001645457814447581768035888671875,
        "lon": 30.212901699999999749479684396646916866302490234375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga/St. Petersburg Approach

Sep 2, 2026 17:53 UTC 75.0% ▼

Duration: 6h 27m
Radius: 10 meters
Data Points: 22 AIS positions
Centroid: 59.8839, 30.2128
Zone: Ust-Luga/St. Petersburg Approach

Show Raw Evidence JSON

{
    "radius_m": 10.300000000000000710542735760100185871124267578125,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 59.88385483636363204595909337513148784637451171875,
        "lon": 30.212841436363635949646777589805424213409423828125
    },
    "bbox": {
        "min_lat": 59.8837682999999998401108314283192157745361328125,
        "min_lon": 30.21273000000000052978066378273069858551025390625,
        "max_lat": 59.8839382999999969570126268081367015838623046875,
        "max_lon": 30.21296829999999999927240423858165740966796875
    },
    "zone_id": "russia_ust_luga_approach"
}

Methodology: 2026.01.18

Recent Position Data

Time (UTC)	Lat	Lon	Speed	Course	Zone
Sep 7 19:47	59.8839	30.2129	0.0 kn	193.9°	Ust-Luga/St. Petersburg Approach
Sep 7 19:38	59.8838	30.2129	0.0 kn	175.2°	Ust-Luga/St. Petersburg Approach
Sep 7 15:39	59.8839	30.2130	0.1 kn	170.8°	Ust-Luga/St. Petersburg Approach
Sep 7 15:22	59.8839	30.2131	0.1 kn	170.8°	Ust-Luga/St. Petersburg Approach
Sep 7 15:10	59.8839	30.2129	0.1 kn	170.8°	Ust-Luga/St. Petersburg Approach
Sep 7 14:19	59.8838	30.2129	0.0 kn	258.7°	Ust-Luga/St. Petersburg Approach
Sep 7 14:07	59.8840	30.2129	0.0 kn	10.4°	Ust-Luga/St. Petersburg Approach
Sep 7 13:37	59.8839	30.2129	0.0 kn	209.6°	Ust-Luga/St. Petersburg Approach
Sep 7 13:31	59.8839	30.2130	0.0 kn	208.6°	Ust-Luga/St. Petersburg Approach
Sep 7 13:26	59.8839	30.2130	0.1 kn	163.8°	Ust-Luga/St. Petersburg Approach
Sep 7 13:23	59.8839	30.2130	0.1 kn	163.8°	Ust-Luga/St. Petersburg Approach
Sep 7 13:21	59.8839	30.2129	0.1 kn	163.8°	Ust-Luga/St. Petersburg Approach
Sep 7 13:18	59.8840	30.2130	0.1 kn	166.2°	Ust-Luga/St. Petersburg Approach
Sep 7 13:15	59.8839	30.2130	0.0 kn	62.8°	Ust-Luga/St. Petersburg Approach
Sep 7 13:10	59.8839	30.2130	0.0 kn	62.8°	Ust-Luga/St. Petersburg Approach
Sep 7 13:00	59.8839	30.2130	0.0 kn	62.8°	Ust-Luga/St. Petersburg Approach
Sep 7 12:57	59.8839	30.2131	0.0 kn	62.8°	Ust-Luga/St. Petersburg Approach
Sep 7 12:46	59.8839	30.2130	0.0 kn	132.6°	Ust-Luga/St. Petersburg Approach
Sep 7 12:41	59.8839	30.2131	0.0 kn	132.6°	Ust-Luga/St. Petersburg Approach
Sep 7 12:11	59.8839	30.2130	0.0 kn	132.6°	Ust-Luga/St. Petersburg Approach

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.

Speed 0.00 kn

Course 193.90°

Zone Ust-Luga/St. Petersburg Approach

Last Position 6 hours ago

VOLGONEFT 237

IMO 8934295

Vessel information

Detected Events (70)

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

🛰️ Satellite Corroboration

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