Intelligence Feed - FleetLeaks

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 22:11 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 103 AIS positions
Period: 2026-07-18T22:31:20+00:00 to 2026-07-19T05:08:12+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 103,
    "first_point": {
        "ts": "2026-07-18T22:31:20+00:00",
        "lat": 46.649321700000001555963535793125629425048828125,
        "lon": 142.720113300000008393908501602709293365478515625
    },
    "last_point": {
        "ts": "2026-07-19T05:08:12+00:00",
        "lat": 46.64978169999999835226844879798591136932373046875,
        "lon": 142.72064000000000305590219795703887939453125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 22:11 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 103 AIS positions
Period: 2026-07-18T22:31:20+00:00 to 2026-07-19T05:08:12+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 103,
    "first_point": {
        "ts": "2026-07-18T22:31:20+00:00",
        "lat": 46.649321700000001555963535793125629425048828125,
        "lon": 142.720113300000008393908501602709293365478515625
    },
    "last_point": {
        "ts": "2026-07-19T05:08:12+00:00",
        "lat": 46.64978169999999835226844879798591136932373046875,
        "lon": 142.72064000000000305590219795703887939453125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 22:11 UTC 75.0% ▼

Duration: 6h 36m
Radius: 43 meters
Data Points: 103 AIS positions
Centroid: 46.6496, 142.7204
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 42.60000000000000142108547152020037174224853515625,
    "duration_minutes": 396.8999999999999772626324556767940521240234375,
    "points": 103,
    "centroid": {
        "lat": 46.64963246213591929745234665460884571075439453125,
        "lon": 142.720439727184469802523381076753139495849609375
    },
    "bbox": {
        "min_lat": 46.649321700000001555963535793125629425048828125,
        "min_lon": 142.72010829999999259598553180694580078125,
        "max_lat": 46.6498466999999976678736857138574123382568359375,
        "max_lon": 142.72084169999999403444235213100910186767578125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 22:11 UTC 75.0% ▼

Duration: 6h 36m
Radius: 43 meters
Data Points: 103 AIS positions
Centroid: 46.6496, 142.7204
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 42.60000000000000142108547152020037174224853515625,
    "duration_minutes": 396.8999999999999772626324556767940521240234375,
    "points": 103,
    "centroid": {
        "lat": 46.64963246213591929745234665460884571075439453125,
        "lon": 142.720439727184469802523381076753139495849609375
    },
    "bbox": {
        "min_lat": 46.649321700000001555963535793125629425048828125,
        "min_lon": 142.72010829999999259598553180694580078125,
        "max_lat": 46.6498466999999976678736857138574123382568359375,
        "max_lon": 142.72084169999999403444235213100910186767578125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 21:06 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 33m
Data Points: 100 AIS positions
Period: 2026-07-18T21:51:39+00:00 to 2026-07-19T04:25:12+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.6000000000000227373675443232059478759765625,
    "points_in_zone": 100,
    "first_point": {
        "ts": "2026-07-18T21:51:39+00:00",
        "lat": 46.6493200000000030058799893595278263092041015625,
        "lon": 142.720118299999995770122040994465351104736328125
    },
    "last_point": {
        "ts": "2026-07-19T04:25:12+00:00",
        "lat": 46.64979670000000311347321257926523685455322265625,
        "lon": 142.72070669999999381616362370550632476806640625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 21:06 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 33m
Data Points: 100 AIS positions
Period: 2026-07-18T21:51:39+00:00 to 2026-07-19T04:25:12+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.6000000000000227373675443232059478759765625,
    "points_in_zone": 100,
    "first_point": {
        "ts": "2026-07-18T21:51:39+00:00",
        "lat": 46.6493200000000030058799893595278263092041015625,
        "lon": 142.720118299999995770122040994465351104736328125
    },
    "last_point": {
        "ts": "2026-07-19T04:25:12+00:00",
        "lat": 46.64979670000000311347321257926523685455322265625,
        "lon": 142.72070669999999381616362370550632476806640625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 21:06 UTC 75.0% ▼

Duration: 6h 33m
Radius: 45 meters
Data Points: 100 AIS positions
Centroid: 46.6496, 142.7204
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 45,
    "duration_minutes": 393.6000000000000227373675443232059478759765625,
    "points": 100,
    "centroid": {
        "lat": 46.6495898520000338294266839511692523956298828125,
        "lon": 142.720388017000033187287044711410999298095703125
    },
    "bbox": {
        "min_lat": 46.64927999999999741476131021045148372650146484375,
        "min_lon": 142.72007999999999583451426587998867034912109375,
        "max_lat": 46.6498466999999976678736857138574123382568359375,
        "max_lon": 142.72084169999999403444235213100910186767578125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 21:06 UTC 75.0% ▼

Duration: 6h 33m
Radius: 45 meters
Data Points: 100 AIS positions
Centroid: 46.6496, 142.7204
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 45,
    "duration_minutes": 393.6000000000000227373675443232059478759765625,
    "points": 100,
    "centroid": {
        "lat": 46.6495898520000338294266839511692523956298828125,
        "lon": 142.720388017000033187287044711410999298095703125
    },
    "bbox": {
        "min_lat": 46.64927999999999741476131021045148372650146484375,
        "min_lon": 142.72007999999999583451426587998867034912109375,
        "max_lat": 46.6498466999999976678736857138574123382568359375,
        "max_lon": 142.72084169999999403444235213100910186767578125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 20:00 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 101 AIS positions
Period: 2026-07-18T20:53:22+00:00 to 2026-07-19T03:23:31+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-18T20:53:22+00:00",
        "lat": 46.6490916999999996050974004901945590972900390625,
        "lon": 142.71999829999998610219336114823818206787109375
    },
    "last_point": {
        "ts": "2026-07-19T03:23:31+00:00",
        "lat": 46.64973330000000117934177978895604610443115234375,
        "lon": 142.720603299999993396340869367122650146484375
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 20:00 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 101 AIS positions
Period: 2026-07-18T20:53:22+00:00 to 2026-07-19T03:23:31+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-18T20:53:22+00:00",
        "lat": 46.6490916999999996050974004901945590972900390625,
        "lon": 142.71999829999998610219336114823818206787109375
    },
    "last_point": {
        "ts": "2026-07-19T03:23:31+00:00",
        "lat": 46.64973330000000117934177978895604610443115234375,
        "lon": 142.720603299999993396340869367122650146484375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 20:00 UTC 75.0% ▼

Duration: 6h 30m
Radius: 53 meters
Data Points: 101 AIS positions
Centroid: 46.6495, 142.7203
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 52.89999999999999857891452847979962825775146484375,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 101,
    "centroid": {
        "lat": 46.6495225079208211127479444257915019989013671875,
        "lon": 142.72029136831685036668204702436923980712890625
    },
    "bbox": {
        "min_lat": 46.6490916999999996050974004901945590972900390625,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64981499999999670080796931870281696319580078125,
        "max_lon": 142.720603299999993396340869367122650146484375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 20:00 UTC 75.0% ▼

Duration: 6h 30m
Radius: 53 meters
Data Points: 101 AIS positions
Centroid: 46.6495, 142.7203
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 52.89999999999999857891452847979962825775146484375,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 101,
    "centroid": {
        "lat": 46.6495225079208211127479444257915019989013671875,
        "lon": 142.72029136831685036668204702436923980712890625
    },
    "bbox": {
        "min_lat": 46.6490916999999996050974004901945590972900390625,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64981499999999670080796931870281696319580078125,
        "max_lon": 142.720603299999993396340869367122650146484375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 19:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 34m
Data Points: 101 AIS positions
Period: 2026-07-18T19:51:42+00:00 to 2026-07-19T02:26:22+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 394.69999999999998863131622783839702606201171875,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-18T19:51:42+00:00",
        "lat": 46.64887499999999675992512493394315242767333984375,
        "lon": 142.7207300000000032014213502407073974609375
    },
    "last_point": {
        "ts": "2026-07-19T02:26:22+00:00",
        "lat": 46.6496532999999971025317790918052196502685546875,
        "lon": 142.720416699999987031333148479461669921875
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 19:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 34m
Data Points: 101 AIS positions
Period: 2026-07-18T19:51:42+00:00 to 2026-07-19T02:26:22+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 394.69999999999998863131622783839702606201171875,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-18T19:51:42+00:00",
        "lat": 46.64887499999999675992512493394315242767333984375,
        "lon": 142.7207300000000032014213502407073974609375
    },
    "last_point": {
        "ts": "2026-07-19T02:26:22+00:00",
        "lat": 46.6496532999999971025317790918052196502685546875,
        "lon": 142.720416699999987031333148479461669921875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 19:01 UTC 75.0% ▼

Duration: 6h 34m
Radius: 71 meters
Data Points: 101 AIS positions
Centroid: 46.6494, 142.7203
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 70.7999999999999971578290569595992565155029296875,
    "duration_minutes": 394.69999999999998863131622783839702606201171875,
    "points": 101,
    "centroid": {
        "lat": 46.6494176405940805807404103688895702362060546875,
        "lon": 142.72033126831689742175512947142124176025390625
    },
    "bbox": {
        "min_lat": 46.64884829999999737992766313254833221435546875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64981499999999670080796931870281696319580078125,
        "max_lon": 142.720830000000006521077011711895465850830078125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 19:01 UTC 75.0% ▼

Duration: 6h 34m
Radius: 71 meters
Data Points: 101 AIS positions
Centroid: 46.6494, 142.7203
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 70.7999999999999971578290569595992565155029296875,
    "duration_minutes": 394.69999999999998863131622783839702606201171875,
    "points": 101,
    "centroid": {
        "lat": 46.6494176405940805807404103688895702362060546875,
        "lon": 142.72033126831689742175512947142124176025390625
    },
    "bbox": {
        "min_lat": 46.64884829999999737992766313254833221435546875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64981499999999670080796931870281696319580078125,
        "max_lon": 142.720830000000006521077011711895465850830078125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 18:08 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 34m
Data Points: 103 AIS positions
Period: 2026-07-18T18:52:22+00:00 to 2026-07-19T01:26:31+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 394.1000000000000227373675443232059478759765625,
    "points_in_zone": 103,
    "first_point": {
        "ts": "2026-07-18T18:52:22+00:00",
        "lat": 46.648948300000000699583324603736400604248046875,
        "lon": 142.72073829999999361461959779262542724609375
    },
    "last_point": {
        "ts": "2026-07-19T01:26:31+00:00",
        "lat": 46.64960500000000109821485239081084728240966796875,
        "lon": 142.720471699999990278229233808815479278564453125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 18:08 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 34m
Data Points: 103 AIS positions
Period: 2026-07-18T18:52:22+00:00 to 2026-07-19T01:26:31+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 394.1000000000000227373675443232059478759765625,
    "points_in_zone": 103,
    "first_point": {
        "ts": "2026-07-18T18:52:22+00:00",
        "lat": 46.648948300000000699583324603736400604248046875,
        "lon": 142.72073829999999361461959779262542724609375
    },
    "last_point": {
        "ts": "2026-07-19T01:26:31+00:00",
        "lat": 46.64960500000000109821485239081084728240966796875,
        "lon": 142.720471699999990278229233808815479278564453125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 18:08 UTC 75.0% ▼

Duration: 6h 34m
Radius: 69 meters
Data Points: 103 AIS positions
Centroid: 46.6493, 142.7204
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 69.099999999999994315658113919198513031005859375,
    "duration_minutes": 394.1000000000000227373675443232059478759765625,
    "points": 103,
    "centroid": {
        "lat": 46.6493027339805763631375157274305820465087890625,
        "lon": 142.720379882524326831116923131048679351806640625
    },
    "bbox": {
        "min_lat": 46.64873330000000350992195308208465576171875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64981499999999670080796931870281696319580078125,
        "max_lon": 142.720830000000006521077011711895465850830078125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 18:08 UTC 75.0% ▼

Duration: 6h 34m
Radius: 69 meters
Data Points: 103 AIS positions
Centroid: 46.6493, 142.7204
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 69.099999999999994315658113919198513031005859375,
    "duration_minutes": 394.1000000000000227373675443232059478759765625,
    "points": 103,
    "centroid": {
        "lat": 46.6493027339805763631375157274305820465087890625,
        "lon": 142.720379882524326831116923131048679351806640625
    },
    "bbox": {
        "min_lat": 46.64873330000000350992195308208465576171875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64981499999999670080796931870281696319580078125,
        "max_lon": 142.720830000000006521077011711895465850830078125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 17:04 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 101 AIS positions
Period: 2026-07-18T17:52:31+00:00 to 2026-07-19T00:29:00+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.5,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-18T17:52:31+00:00",
        "lat": 46.64914499999999719648258178494870662689208984375,
        "lon": 142.720863299999990658761817030608654022216796875
    },
    "last_point": {
        "ts": "2026-07-19T00:29:00+00:00",
        "lat": 46.64974169999999986657712724991142749786376953125,
        "lon": 142.72010829999999259598553180694580078125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 17:04 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 101 AIS positions
Period: 2026-07-18T17:52:31+00:00 to 2026-07-19T00:29:00+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.5,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-18T17:52:31+00:00",
        "lat": 46.64914499999999719648258178494870662689208984375,
        "lon": 142.720863299999990658761817030608654022216796875
    },
    "last_point": {
        "ts": "2026-07-19T00:29:00+00:00",
        "lat": 46.64974169999999986657712724991142749786376953125,
        "lon": 142.72010829999999259598553180694580078125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 17:04 UTC 75.0% ▼

Duration: 6h 36m
Radius: 61 meters
Data Points: 101 AIS positions
Centroid: 46.6492, 142.7204
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 61.2999999999999971578290569595992565155029296875,
    "duration_minutes": 396.5,
    "points": 101,
    "centroid": {
        "lat": 46.64923679801982103754198760725557804107666015625,
        "lon": 142.72043101881189386404003016650676727294921875
    },
    "bbox": {
        "min_lat": 46.64873330000000350992195308208465576171875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64974169999999986657712724991142749786376953125,
        "max_lon": 142.720916700000003629611455835402011871337890625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 17:04 UTC 75.0% ▼

Duration: 6h 36m
Radius: 61 meters
Data Points: 101 AIS positions
Centroid: 46.6492, 142.7204
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 61.2999999999999971578290569595992565155029296875,
    "duration_minutes": 396.5,
    "points": 101,
    "centroid": {
        "lat": 46.64923679801982103754198760725557804107666015625,
        "lon": 142.72043101881189386404003016650676727294921875
    },
    "bbox": {
        "min_lat": 46.64873330000000350992195308208465576171875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64974169999999986657712724991142749786376953125,
        "max_lon": 142.720916700000003629611455835402011871337890625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 16:00 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 33m
Data Points: 98 AIS positions
Period: 2026-07-18T16:53:29+00:00 to 2026-07-18T23:26:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.3999999999999772626324556767940521240234375,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-18T16:53:29+00:00",
        "lat": 46.64907170000000036225173971615731716156005859375,
        "lon": 142.720818299999990586002240888774394989013671875
    },
    "last_point": {
        "ts": "2026-07-18T23:26:50+00:00",
        "lat": 46.64951500000000095269570010714232921600341796875,
        "lon": 142.720311699999996335463947616517543792724609375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 16:00 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 33m
Data Points: 98 AIS positions
Period: 2026-07-18T16:53:29+00:00 to 2026-07-18T23:26:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.3999999999999772626324556767940521240234375,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-18T16:53:29+00:00",
        "lat": 46.64907170000000036225173971615731716156005859375,
        "lon": 142.720818299999990586002240888774394989013671875
    },
    "last_point": {
        "ts": "2026-07-18T23:26:50+00:00",
        "lat": 46.64951500000000095269570010714232921600341796875,
        "lon": 142.720311699999996335463947616517543792724609375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 16:00 UTC 75.0% ▼

Duration: 6h 33m
Radius: 65 meters
Data Points: 98 AIS positions
Centroid: 46.6492, 142.7205
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 64.7000000000000028421709430404007434844970703125,
    "duration_minutes": 393.3999999999999772626324556767940521240234375,
    "points": 98,
    "centroid": {
        "lat": 46.64915942142857119279142352752387523651123046875,
        "lon": 142.720512751020379482724820263683795928955078125
    },
    "bbox": {
        "min_lat": 46.64873330000000350992195308208465576171875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64955669999999798847056808881461620330810546875,
        "max_lon": 142.720916700000003629611455835402011871337890625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 16:00 UTC 75.0% ▼

Duration: 6h 33m
Radius: 65 meters
Data Points: 98 AIS positions
Centroid: 46.6492, 142.7205
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 64.7000000000000028421709430404007434844970703125,
    "duration_minutes": 393.3999999999999772626324556767940521240234375,
    "points": 98,
    "centroid": {
        "lat": 46.64915942142857119279142352752387523651123046875,
        "lon": 142.720512751020379482724820263683795928955078125
    },
    "bbox": {
        "min_lat": 46.64873330000000350992195308208465576171875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64955669999999798847056808881461620330810546875,
        "max_lon": 142.720916700000003629611455835402011871337890625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 15:03 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 32m
Data Points: 96 AIS positions
Period: 2026-07-18T15:56:20+00:00 to 2026-07-18T22:28:58+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 392.6000000000000227373675443232059478759765625,
    "points_in_zone": 96,
    "first_point": {
        "ts": "2026-07-18T15:56:20+00:00",
        "lat": 46.64857330000000246172930928878486156463623046875,
        "lon": 142.720834999999993897290551103651523590087890625
    },
    "last_point": {
        "ts": "2026-07-18T22:28:58+00:00",
        "lat": 46.6493549999999999045030563138425350189208984375,
        "lon": 142.720113300000008393908501602709293365478515625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 15:03 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 32m
Data Points: 96 AIS positions
Period: 2026-07-18T15:56:20+00:00 to 2026-07-18T22:28:58+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 392.6000000000000227373675443232059478759765625,
    "points_in_zone": 96,
    "first_point": {
        "ts": "2026-07-18T15:56:20+00:00",
        "lat": 46.64857330000000246172930928878486156463623046875,
        "lon": 142.720834999999993897290551103651523590087890625
    },
    "last_point": {
        "ts": "2026-07-18T22:28:58+00:00",
        "lat": 46.6493549999999999045030563138425350189208984375,
        "lon": 142.720113300000008393908501602709293365478515625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 15:03 UTC 75.0% ▼

Duration: 6h 32m
Radius: 77 meters
Data Points: 96 AIS positions
Centroid: 46.6491, 142.7206
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 76.599999999999994315658113919198513031005859375,
    "duration_minutes": 392.6000000000000227373675443232059478759765625,
    "points": 96,
    "centroid": {
        "lat": 46.64906734062500248683136305771768093109130859375,
        "lon": 142.720607879166664133663289248943328857421875
    },
    "bbox": {
        "min_lat": 46.64857330000000246172930928878486156463623046875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64955669999999798847056808881461620330810546875,
        "max_lon": 142.720916700000003629611455835402011871337890625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 15:03 UTC 75.0% ▼

Duration: 6h 32m
Radius: 77 meters
Data Points: 96 AIS positions
Centroid: 46.6491, 142.7206
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 76.599999999999994315658113919198513031005859375,
    "duration_minutes": 392.6000000000000227373675443232059478759765625,
    "points": 96,
    "centroid": {
        "lat": 46.64906734062500248683136305771768093109130859375,
        "lon": 142.720607879166664133663289248943328857421875
    },
    "bbox": {
        "min_lat": 46.64857330000000246172930928878486156463623046875,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64955669999999798847056808881461620330810546875,
        "max_lon": 142.720916700000003629611455835402011871337890625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 14:30 UTC 75.0% ▼

Duration: 6h 36m
Radius: 92 meters
Data Points: 99 AIS positions
Centroid: 46.6490, 142.7207
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 92.400000000000005684341886080801486968994140625,
    "duration_minutes": 396.19999999999998863131622783839702606201171875,
    "points": 99,
    "centroid": {
        "lat": 46.648954072727264019704307429492473602294921875,
        "lon": 142.7207399989898704006918705999851226806640625
    },
    "bbox": {
        "min_lat": 46.648425000000003137756721116602420806884765625,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64955669999999798847056808881461620330810546875,
        "max_lon": 142.721215000000000827640178613364696502685546875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 14:30 UTC 75.0% ▼

Duration: 6h 36m
Radius: 92 meters
Data Points: 99 AIS positions
Centroid: 46.6490, 142.7207
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 92.400000000000005684341886080801486968994140625,
    "duration_minutes": 396.19999999999998863131622783839702606201171875,
    "points": 99,
    "centroid": {
        "lat": 46.648954072727264019704307429492473602294921875,
        "lon": 142.7207399989898704006918705999851226806640625
    },
    "bbox": {
        "min_lat": 46.648425000000003137756721116602420806884765625,
        "min_lon": 142.71981329999999843494151718914508819580078125,
        "max_lat": 46.64955669999999798847056808881461620330810546875,
        "max_lon": 142.721215000000000827640178613364696502685546875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 14:30 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 99 AIS positions
Period: 2026-07-18T14:53:39+00:00 to 2026-07-18T21:29:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.19999999999998863131622783839702606201171875,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-07-18T14:53:39+00:00",
        "lat": 46.648425000000003137756721116602420806884765625,
        "lon": 142.721215000000000827640178613364696502685546875
    },
    "last_point": {
        "ts": "2026-07-18T21:29:50+00:00",
        "lat": 46.6493150000000014188117347657680511474609375,
        "lon": 142.72012829999999894425855018198490142822265625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 14:30 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 99 AIS positions
Period: 2026-07-18T14:53:39+00:00 to 2026-07-18T21:29:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.19999999999998863131622783839702606201171875,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-07-18T14:53:39+00:00",
        "lat": 46.648425000000003137756721116602420806884765625,
        "lon": 142.721215000000000827640178613364696502685546875
    },
    "last_point": {
        "ts": "2026-07-18T21:29:50+00:00",
        "lat": 46.6493150000000014188117347657680511474609375,
        "lon": 142.72012829999999894425855018198490142822265625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 12:00 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 35m
Data Points: 71 AIS positions
Period: 2026-07-18T12:42:49+00:00 to 2026-07-18T19:18:21+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395.5,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-07-18T12:42:49+00:00",
        "lat": 46.623078300000003082459443248808383941650390625,
        "lon": 142.46722829999998793937265872955322265625
    },
    "last_point": {
        "ts": "2026-07-18T19:18:21+00:00",
        "lat": 46.64874329999999957863110466860234737396240234375,
        "lon": 142.72075330000001258667907677590847015380859375
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 12:00 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 35m
Data Points: 71 AIS positions
Period: 2026-07-18T12:42:49+00:00 to 2026-07-18T19:18:21+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395.5,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-07-18T12:42:49+00:00",
        "lat": 46.623078300000003082459443248808383941650390625,
        "lon": 142.46722829999998793937265872955322265625
    },
    "last_point": {
        "ts": "2026-07-18T19:18:21+00:00",
        "lat": 46.64874329999999957863110466860234737396240234375,
        "lon": 142.72075330000001258667907677590847015380859375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 11:07 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 32m
Data Points: 68 AIS positions
Period: 2026-07-18T11:53:17+00:00 to 2026-07-18T18:26:11+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 68,
    "first_point": {
        "ts": "2026-07-18T11:53:17+00:00",
        "lat": 46.62366829999999850997483008541166782379150390625,
        "lon": 142.466951700000009850555215962231159210205078125
    },
    "last_point": {
        "ts": "2026-07-18T18:26:11+00:00",
        "lat": 46.64916000000000195768734556622803211212158203125,
        "lon": 142.7208282999999937601387500762939453125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 11:07 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 32m
Data Points: 68 AIS positions
Period: 2026-07-18T11:53:17+00:00 to 2026-07-18T18:26:11+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 68,
    "first_point": {
        "ts": "2026-07-18T11:53:17+00:00",
        "lat": 46.62366829999999850997483008541166782379150390625,
        "lon": 142.466951700000009850555215962231159210205078125
    },
    "last_point": {
        "ts": "2026-07-18T18:26:11+00:00",
        "lat": 46.64916000000000195768734556622803211212158203125,
        "lon": 142.7208282999999937601387500762939453125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 11:07 UTC 75.0% ▼

Duration: 1h 35m
Radius: 48 meters
Data Points: 23 AIS positions
Centroid: 46.6235, 142.4670
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 48.39999999999999857891452847979962825775146484375,
    "duration_minutes": 95.7000000000000028421709430404007434844970703125,
    "points": 23,
    "centroid": {
        "lat": 46.62347934347826594603247940540313720703125,
        "lon": 142.466982317391313017651555128395557403564453125
    },
    "bbox": {
        "min_lat": 46.623078300000003082459443248808383941650390625,
        "min_lon": 142.466865000000012742020771838724613189697265625,
        "max_lat": 46.623733299999997825580067001283168792724609375,
        "max_lon": 142.46722829999998793937265872955322265625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 11:07 UTC 75.0% ▼

Duration: 1h 35m
Radius: 48 meters
Data Points: 23 AIS positions
Centroid: 46.6235, 142.4670
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 48.39999999999999857891452847979962825775146484375,
    "duration_minutes": 95.7000000000000028421709430404007434844970703125,
    "points": 23,
    "centroid": {
        "lat": 46.62347934347826594603247940540313720703125,
        "lon": 142.466982317391313017651555128395557403564453125
    },
    "bbox": {
        "min_lat": 46.623078300000003082459443248808383941650390625,
        "min_lon": 142.466865000000012742020771838724613189697265625,
        "max_lat": 46.623733299999997825580067001283168792724609375,
        "max_lon": 142.46722829999998793937265872955322265625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 10:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 35m
Data Points: 69 AIS positions
Period: 2026-07-18T10:50:28+00:00 to 2026-07-18T17:26:20+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 69,
    "first_point": {
        "ts": "2026-07-18T10:50:28+00:00",
        "lat": 46.62339670000000069194356910884380340576171875,
        "lon": 142.466906700000009777795639820396900177001953125
    },
    "last_point": {
        "ts": "2026-07-18T17:26:20+00:00",
        "lat": 46.6491816999999997506165527738630771636962890625,
        "lon": 142.720873299999993832898326218128204345703125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 10:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 35m
Data Points: 69 AIS positions
Period: 2026-07-18T10:50:28+00:00 to 2026-07-18T17:26:20+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 69,
    "first_point": {
        "ts": "2026-07-18T10:50:28+00:00",
        "lat": 46.62339670000000069194356910884380340576171875,
        "lon": 142.466906700000009777795639820396900177001953125
    },
    "last_point": {
        "ts": "2026-07-18T17:26:20+00:00",
        "lat": 46.6491816999999997506165527738630771636962890625,
        "lon": 142.720873299999993832898326218128204345703125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 10:01 UTC 75.0% ▼

Duration: 2h 41m
Radius: 46 meters
Data Points: 40 AIS positions
Centroid: 46.6234, 142.4669
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 46.2000000000000028421709430404007434844970703125,
    "duration_minutes": 161.69999999999998863131622783839702606201171875,
    "points": 40,
    "centroid": {
        "lat": 46.6234468324999937749453238211572170257568359375,
        "lon": 142.466949957499991796794347465038299560546875
    },
    "bbox": {
        "min_lat": 46.623078300000003082459443248808383941650390625,
        "min_lon": 142.466853299999996806946001015603542327880859375,
        "max_lat": 46.623733299999997825580067001283168792724609375,
        "max_lon": 142.46722829999998793937265872955322265625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 10:01 UTC 75.0% ▼

Duration: 2h 41m
Radius: 46 meters
Data Points: 40 AIS positions
Centroid: 46.6234, 142.4669
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 46.2000000000000028421709430404007434844970703125,
    "duration_minutes": 161.69999999999998863131622783839702606201171875,
    "points": 40,
    "centroid": {
        "lat": 46.6234468324999937749453238211572170257568359375,
        "lon": 142.466949957499991796794347465038299560546875
    },
    "bbox": {
        "min_lat": 46.623078300000003082459443248808383941650390625,
        "min_lon": 142.466853299999996806946001015603542327880859375,
        "max_lat": 46.623733299999997825580067001283168792724609375,
        "max_lon": 142.46722829999998793937265872955322265625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 09:02 UTC 75.0% ▼

Duration: 3h 40m
Radius: 132 meters
Data Points: 51 AIS positions
Centroid: 46.6234, 142.4669
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 131.599999999999994315658113919198513031005859375,
    "duration_minutes": 220.400000000000005684341886080801486968994140625,
    "points": 51,
    "centroid": {
        "lat": 46.62344048823530329173081554472446441650390625,
        "lon": 142.466873298039246265034307725727558135986328125
    },
    "bbox": {
        "min_lat": 46.623078300000003082459443248808383941650390625,
        "min_lon": 142.465155000000009977156878449022769927978515625,
        "max_lat": 46.623733299999997825580067001283168792724609375,
        "max_lon": 142.46722829999998793937265872955322265625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 09:02 UTC 75.0% ▼

Duration: 3h 40m
Radius: 132 meters
Data Points: 51 AIS positions
Centroid: 46.6234, 142.4669
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 131.599999999999994315658113919198513031005859375,
    "duration_minutes": 220.400000000000005684341886080801486968994140625,
    "points": 51,
    "centroid": {
        "lat": 46.62344048823530329173081554472446441650390625,
        "lon": 142.466873298039246265034307725727558135986328125
    },
    "bbox": {
        "min_lat": 46.623078300000003082459443248808383941650390625,
        "min_lon": 142.465155000000009977156878449022769927978515625,
        "max_lat": 46.623733299999997825580067001283168792724609375,
        "max_lon": 142.46722829999998793937265872955322265625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 09:02 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 35m
Data Points: 70 AIS positions
Period: 2026-07-18T09:53:56+00:00 to 2026-07-18T16:29:40+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395.69999999999998863131622783839702606201171875,
    "points_in_zone": 70,
    "first_point": {
        "ts": "2026-07-18T09:53:56+00:00",
        "lat": 46.62326829999999944220689940266311168670654296875,
        "lon": 142.466918300000003227978595532476902008056640625
    },
    "last_point": {
        "ts": "2026-07-18T16:29:40+00:00",
        "lat": 46.64893829999999752544681541621685028076171875,
        "lon": 142.72075169999999388892319984734058380126953125
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 09:02 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 35m
Data Points: 70 AIS positions
Period: 2026-07-18T09:53:56+00:00 to 2026-07-18T16:29:40+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395.69999999999998863131622783839702606201171875,
    "points_in_zone": 70,
    "first_point": {
        "ts": "2026-07-18T09:53:56+00:00",
        "lat": 46.62326829999999944220689940266311168670654296875,
        "lon": 142.466918300000003227978595532476902008056640625
    },
    "last_point": {
        "ts": "2026-07-18T16:29:40+00:00",
        "lat": 46.64893829999999752544681541621685028076171875,
        "lon": 142.72075169999999388892319984734058380126953125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 08:02 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 63 AIS positions
Period: 2026-07-18T08:31:46+00:00 to 2026-07-18T15:08:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-07-18T08:31:46+00:00",
        "lat": 46.6302366999999975405444274656474590301513671875,
        "lon": 142.539773300000007338894647546112537384033203125
    },
    "last_point": {
        "ts": "2026-07-18T15:08:39+00:00",
        "lat": 46.64844670000000093068592832423746585845947265625,
        "lon": 142.72115999999999758074409328401088714599609375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 08:02 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 63 AIS positions
Period: 2026-07-18T08:31:46+00:00 to 2026-07-18T15:08:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-07-18T08:31:46+00:00",
        "lat": 46.6302366999999975405444274656474590301513671875,
        "lon": 142.539773300000007338894647546112537384033203125
    },
    "last_point": {
        "ts": "2026-07-18T15:08:39+00:00",
        "lat": 46.64844670000000093068592832423746585845947265625,
        "lon": 142.72115999999999758074409328401088714599609375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 07:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 5h 41m
Data Points: 79 AIS positions
Period: 2026-07-18T07:01:15+00:00 to 2026-07-18T12:42:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 341.6000000000000227373675443232059478759765625,
    "points_in_zone": 79,
    "first_point": {
        "ts": "2026-07-18T07:01:15+00:00",
        "lat": 46.64987169999999849778760108165442943572998046875,
        "lon": 142.722646700000012742748367600142955780029296875
    },
    "last_point": {
        "ts": "2026-07-18T12:42:49+00:00",
        "lat": 46.623078300000003082459443248808383941650390625,
        "lon": 142.46722829999998793937265872955322265625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 07:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 5h 41m
Data Points: 79 AIS positions
Period: 2026-07-18T07:01:15+00:00 to 2026-07-18T12:42:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 341.6000000000000227373675443232059478759765625,
    "points_in_zone": 79,
    "first_point": {
        "ts": "2026-07-18T07:01:15+00:00",
        "lat": 46.64987169999999849778760108165442943572998046875,
        "lon": 142.722646700000012742748367600142955780029296875
    },
    "last_point": {
        "ts": "2026-07-18T12:42:49+00:00",
        "lat": 46.623078300000003082459443248808383941650390625,
        "lon": 142.46722829999998793937265872955322265625
    }
}

Methodology: 2026.01.18

Sts Prigorodnoye/Sakhalin LNG

Jul 18, 2026 06:03 UTC 75/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 14 meters
Average Distance: 16 meters
Duration: 38 minutes
Period: 2026-07-18T06:33:46+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.0 knots
Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 14m, avg 16m) for 38 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 14m, avg 16m
Duration	5/25	Duration 38 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 13.5999999999999996447286321199499070644378662109375,
    "avg_distance_m": 16.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 38.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2299,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T06:33:46+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 16m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 38 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: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 14m, avg 16m) for 38 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Sakhalin South Approach

Jul 18, 2026 06:03 UTC 75/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 14 meters
Average Distance: 16 meters
Duration: 38 minutes
Period: 2026-07-18T06:33:46+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.0 knots
Zone: Sakhalin South Approach

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 14m, avg 16m) for 38 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 14m, avg 16m
Duration	5/25	Duration 38 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 13.5999999999999996447286321199499070644378662109375,
    "avg_distance_m": 16.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 38.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2299,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T06:33:46+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 16m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 38 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: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 14m, avg 16m) for 38 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 06:02 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 29m
Data Points: 92 AIS positions
Period: 2026-07-18T06:13:06+00:00 to 2026-07-18T12:42:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 389.69999999999998863131622783839702606201171875,
    "points_in_zone": 92,
    "first_point": {
        "ts": "2026-07-18T06:13:06+00:00",
        "lat": 46.650221700000003011155058629810810089111328125,
        "lon": 142.72246000000001231455826200544834136962890625
    },
    "last_point": {
        "ts": "2026-07-18T12:42:49+00:00",
        "lat": 46.623078300000003082459443248808383941650390625,
        "lon": 142.46722829999998793937265872955322265625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 06:02 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 29m
Data Points: 92 AIS positions
Period: 2026-07-18T06:13:06+00:00 to 2026-07-18T12:42:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 389.69999999999998863131622783839702606201171875,
    "points_in_zone": 92,
    "first_point": {
        "ts": "2026-07-18T06:13:06+00:00",
        "lat": 46.650221700000003011155058629810810089111328125,
        "lon": 142.72246000000001231455826200544834136962890625
    },
    "last_point": {
        "ts": "2026-07-18T12:42:49+00:00",
        "lat": 46.623078300000003082459443248808383941650390625,
        "lon": 142.46722829999998793937265872955322265625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 06:02 UTC 75.0% ▼

Duration: 1h 36m
Radius: 825 meters
Data Points: 25 AIS positions
Centroid: 46.6499, 142.7216
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 824.6000000000000227373675443232059478759765625,
    "duration_minutes": 96.2999999999999971578290569595992565155029296875,
    "points": 25,
    "centroid": {
        "lat": 46.64993867200001886885729618370532989501953125,
        "lon": 142.721551135999987991453963331878185272216796875
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65024170000000225400071940384805202484130859375,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 06:02 UTC 75.0% ▼

Duration: 1h 36m
Radius: 825 meters
Data Points: 25 AIS positions
Centroid: 46.6499, 142.7216
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 824.6000000000000227373675443232059478759765625,
    "duration_minutes": 96.2999999999999971578290569595992565155029296875,
    "points": 25,
    "centroid": {
        "lat": 46.64993867200001886885729618370532989501953125,
        "lon": 142.721551135999987991453963331878185272216796875
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65024170000000225400071940384805202484130859375,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Sts Prigorodnoye/Sakhalin LNG

Jul 18, 2026 05:05 UTC 90/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 11 meters
Average Distance: 15 meters
Duration: 1h 33m
Period: 2026-07-18T05:39:04+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 93 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 15m
Duration	20/25	Duration 93 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 14.9000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 3,
    "duration_minutes": 93,
    "overlap_duration_s": 5581,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T05:39:04+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 15m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 93 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 93 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Sakhalin South Approach

Jul 18, 2026 05:05 UTC 90/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 11 meters
Average Distance: 15 meters
Duration: 1h 33m
Period: 2026-07-18T05:39:04+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Sakhalin South Approach

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 93 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 15m
Duration	20/25	Duration 93 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 14.9000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 3,
    "duration_minutes": 93,
    "overlap_duration_s": 5581,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T05:39:04+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 15m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 93 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 93 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 05:03 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 31m
Data Points: 98 AIS positions
Period: 2026-07-18T05:52:54+00:00 to 2026-07-18T12:24:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391.8999999999999772626324556767940521240234375,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-18T05:52:54+00:00",
        "lat": 46.65021329999999721849235356785356998443603515625,
        "lon": 142.722438299999993205346981994807720184326171875
    },
    "last_point": {
        "ts": "2026-07-18T12:24:48+00:00",
        "lat": 46.623244999999997162376530468463897705078125,
        "lon": 142.466981699999990951255313120782375335693359375
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 05:03 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 31m
Data Points: 98 AIS positions
Period: 2026-07-18T05:52:54+00:00 to 2026-07-18T12:24:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 391.8999999999999772626324556767940521240234375,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-18T05:52:54+00:00",
        "lat": 46.65021329999999721849235356785356998443603515625,
        "lon": 142.722438299999993205346981994807720184326171875
    },
    "last_point": {
        "ts": "2026-07-18T12:24:48+00:00",
        "lat": 46.623244999999997162376530468463897705078125,
        "lon": 142.466981699999990951255313120782375335693359375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 05:03 UTC 75.0% ▼

Duration: 2h 35m
Radius: 852 meters
Data Points: 40 AIS positions
Centroid: 46.6501, 142.7219
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 851.6000000000000227373675443232059478759765625,
    "duration_minutes": 155.30000000000001136868377216160297393798828125,
    "points": 40,
    "centroid": {
        "lat": 46.65005800249999623474650434218347072601318359375,
        "lon": 142.721883002499993153833202086389064788818359375
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 05:03 UTC 75.0% ▼

Duration: 2h 35m
Radius: 852 meters
Data Points: 40 AIS positions
Centroid: 46.6501, 142.7219
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 851.6000000000000227373675443232059478759765625,
    "duration_minutes": 155.30000000000001136868377216160297393798828125,
    "points": 40,
    "centroid": {
        "lat": 46.65005800249999623474650434218347072601318359375,
        "lon": 142.721883002499993153833202086389064788818359375
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Sts Prigorodnoye/Sakhalin LNG

Jul 18, 2026 04:09 UTC 95/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 11 meters
Average Distance: 15 meters
Duration: 2h 45m
Period: 2026-07-18T04:26:45+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 165 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 15m
Duration	25/25	Duration 165 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 15,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 165.30000000000001136868377216160297393798828125,
    "overlap_duration_s": 9920,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T04:26:45+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 44,
        "vessel_b": 44
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 165 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 165 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Sakhalin South Approach

Jul 18, 2026 04:09 UTC 95/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 11 meters
Average Distance: 15 meters
Duration: 2h 45m
Period: 2026-07-18T04:26:45+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Sakhalin South Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 165 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 15m
Duration	25/25	Duration 165 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Sakhalin South Approach

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-18T11:00:01.871012+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 15,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 165.30000000000001136868377216160297393798828125,
    "overlap_duration_s": 9920,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T04:26:45+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 44,
        "vessel_b": 44
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 165 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 11m, avg 15m) for 165 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.6502064000000018495484255254268646240234375,
            "lon": 142.722576099999997722989064641296863555908203125
        },
        "time_window": {
            "start_ts": "2026-07-18T04:09:35+00:00",
            "end_ts": "2026-07-18T07:12:05+00:00"
        },
        "searched_at": "2026-07-18T11:00:01.871012+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 04:06 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 37m
Data Points: 98 AIS positions
Period: 2026-07-18T04:51:04+00:00 to 2026-07-18T11:28:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 397.69999999999998863131622783839702606201171875,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-18T04:51:04+00:00",
        "lat": 46.65021999999999735564415459521114826202392578125,
        "lon": 142.72245670000000927757355384528636932373046875
    },
    "last_point": {
        "ts": "2026-07-18T11:28:47+00:00",
        "lat": 46.62366670000000112850102595984935760498046875,
        "lon": 142.466865000000012742020771838724613189697265625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 04:06 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 37m
Data Points: 98 AIS positions
Period: 2026-07-18T04:51:04+00:00 to 2026-07-18T11:28:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 397.69999999999998863131622783839702606201171875,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-18T04:51:04+00:00",
        "lat": 46.65021999999999735564415459521114826202392578125,
        "lon": 142.72245670000000927757355384528636932373046875
    },
    "last_point": {
        "ts": "2026-07-18T11:28:47+00:00",
        "lat": 46.62366670000000112850102595984935760498046875,
        "lon": 142.466865000000012742020771838724613189697265625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 04:06 UTC 75.0% ▼

Duration: 3h 32m
Radius: 863 meters
Data Points: 52 AIS positions
Centroid: 46.6501, 142.7220
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 862.700000000000045474735088646411895751953125,
    "duration_minutes": 212.19999999999998863131622783839702606201171875,
    "points": 52,
    "centroid": {
        "lat": 46.6501014134615132888939115218818187713623046875,
        "lon": 142.722020003846154168059001676738262176513671875
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 04:06 UTC 75.0% ▼

Duration: 3h 32m
Radius: 863 meters
Data Points: 52 AIS positions
Centroid: 46.6501, 142.7220
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 862.700000000000045474735088646411895751953125,
    "duration_minutes": 212.19999999999998863131622783839702606201171875,
    "points": 52,
    "centroid": {
        "lat": 46.6501014134615132888939115218818187713623046875,
        "lon": 142.722020003846154168059001676738262176513671875
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Sts Prigorodnoye/Sakhalin LNG

Jul 18, 2026 03:31 UTC 95/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 6 meters
Average Distance: 16 meters
Duration: 3h 40m
Period: 2026-07-18T03:31:13+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 6m, avg 16m) for 221 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 Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 6m, avg 16m
Duration	25/25	Duration 221 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±12m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 5.9000000000000003552713678800500929355621337890625,
    "avg_distance_m": 16.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 11.5,
    "duration_minutes": 220.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 13252,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-07-18T03:31:13+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 54,
        "vessel_b": 54
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 16m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 221 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b112m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 6m, avg 16m) for 221 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 Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Sakhalin South Approach

Jul 18, 2026 03:31 UTC 95/100 ▼

Vessel A: IMO 8603638 (PHOENIX II) Russia

Vessel B: IMO 9084401 (AZOV) Russia

Minimum Distance: 6 meters
Average Distance: 16 meters
Duration: 3h 40m
Period: 2026-07-18T03:31:13+00:00 to 2026-07-18T07:12:05+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Sakhalin South Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 6m, avg 16m) for 221 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 Sakhalin South Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 6m, avg 16m
Duration	25/25	Duration 221 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±12m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273356770,
        "imo": 8603638,
        "name": "PHOENIX II",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 5.9000000000000003552713678800500929355621337890625,
    "avg_distance_m": 16.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 11.5,
    "duration_minutes": 220.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 13252,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-07-18T03:31:13+00:00",
        "end": "2026-07-18T07:12:05+00:00"
    },
    "points_count": {
        "vessel_a": 54,
        "vessel_b": 54
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 16m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 221 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b112m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX II and AZOV) maintained close proximity (min 6m, avg 16m) for 221 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 Sakhalin South Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 03:03 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 94 AIS positions
Period: 2026-07-18T03:42:53+00:00 to 2026-07-18T10:19:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.69999999999998863131622783839702606201171875,
    "points_in_zone": 94,
    "first_point": {
        "ts": "2026-07-18T03:42:53+00:00",
        "lat": 46.6502100000000012869350030086934566497802734375,
        "lon": 142.722471699999999827923602424561977386474609375
    },
    "last_point": {
        "ts": "2026-07-18T10:19:37+00:00",
        "lat": 46.6234232999999989033312886022031307220458984375,
        "lon": 142.466870000000000118234311230480670928955078125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 03:03 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 94 AIS positions
Period: 2026-07-18T03:42:53+00:00 to 2026-07-18T10:19:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.69999999999998863131622783839702606201171875,
    "points_in_zone": 94,
    "first_point": {
        "ts": "2026-07-18T03:42:53+00:00",
        "lat": 46.6502100000000012869350030086934566497802734375,
        "lon": 142.722471699999999827923602424561977386474609375
    },
    "last_point": {
        "ts": "2026-07-18T10:19:37+00:00",
        "lat": 46.6234232999999989033312886022031307220458984375,
        "lon": 142.466870000000000118234311230480670928955078125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 03:03 UTC 75.0% ▼

Duration: 4h 35m
Radius: 870 meters
Data Points: 65 AIS positions
Centroid: 46.6501, 142.7221
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 869.700000000000045474735088646411895751953125,
    "duration_minutes": 275.19999999999998863131622783839702606201171875,
    "points": 65,
    "centroid": {
        "lat": 46.65010959230769316263831569813191890716552734375,
        "lon": 142.7221106707692115378449670970439910888671875
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 03:03 UTC 75.0% ▼

Duration: 4h 35m
Radius: 870 meters
Data Points: 65 AIS positions
Centroid: 46.6501, 142.7221
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 869.700000000000045474735088646411895751953125,
    "duration_minutes": 275.19999999999998863131622783839702606201171875,
    "points": 65,
    "centroid": {
        "lat": 46.65010959230769316263831569813191890716552734375,
        "lon": 142.7221106707692115378449670970439910888671875
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 02:05 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 33m
Data Points: 93 AIS positions
Period: 2026-07-18T02:50:43+00:00 to 2026-07-18T09:24:07+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.3999999999999772626324556767940521240234375,
    "points_in_zone": 93,
    "first_point": {
        "ts": "2026-07-18T02:50:43+00:00",
        "lat": 46.6500750000000010686562745831906795501708984375,
        "lon": 142.7223099999999931242200545966625213623046875
    },
    "last_point": {
        "ts": "2026-07-18T09:24:07+00:00",
        "lat": 46.62333000000000282625478575937449932098388671875,
        "lon": 142.467218300000013186945579946041107177734375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 02:05 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 33m
Data Points: 93 AIS positions
Period: 2026-07-18T02:50:43+00:00 to 2026-07-18T09:24:07+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.3999999999999772626324556767940521240234375,
    "points_in_zone": 93,
    "first_point": {
        "ts": "2026-07-18T02:50:43+00:00",
        "lat": 46.6500750000000010686562745831906795501708984375,
        "lon": 142.7223099999999931242200545966625213623046875
    },
    "last_point": {
        "ts": "2026-07-18T09:24:07+00:00",
        "lat": 46.62333000000000282625478575937449932098388671875,
        "lon": 142.467218300000013186945579946041107177734375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 02:05 UTC 75.0% ▼

Duration: 5h 33m
Radius: 873 meters
Data Points: 80 AIS positions
Centroid: 46.6501, 142.7222
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 873.1000000000000227373675443232059478759765625,
    "duration_minutes": 333,
    "points": 80,
    "centroid": {
        "lat": 46.6501013750000055324562708847224712371826171875,
        "lon": 142.72215727250005556925316341221332550048828125
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 02:05 UTC 75.0% ▼

Duration: 5h 33m
Radius: 873 meters
Data Points: 80 AIS positions
Centroid: 46.6501, 142.7222
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 873.1000000000000227373675443232059478759765625,
    "duration_minutes": 333,
    "points": 80,
    "centroid": {
        "lat": 46.6501013750000055324562708847224712371826171875,
        "lon": 142.72215727250005556925316341221332550048828125
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 01:03 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 37m
Data Points: 100 AIS positions
Period: 2026-07-18T01:51:03+00:00 to 2026-07-18T08:28:05+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 397,
    "points_in_zone": 100,
    "first_point": {
        "ts": "2026-07-18T01:51:03+00:00",
        "lat": 46.6500132999999976846083882264792919158935546875,
        "lon": 142.72226000000000567524693906307220458984375
    },
    "last_point": {
        "ts": "2026-07-18T08:28:05+00:00",
        "lat": 46.63185829999999754136297269724309444427490234375,
        "lon": 142.5512899999999945066520012915134429931640625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 01:03 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 37m
Data Points: 100 AIS positions
Period: 2026-07-18T01:51:03+00:00 to 2026-07-18T08:28:05+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 397,
    "points_in_zone": 100,
    "first_point": {
        "ts": "2026-07-18T01:51:03+00:00",
        "lat": 46.6500132999999976846083882264792919158935546875,
        "lon": 142.72226000000000567524693906307220458984375
    },
    "last_point": {
        "ts": "2026-07-18T08:28:05+00:00",
        "lat": 46.63185829999999754136297269724309444427490234375,
        "lon": 142.5512899999999945066520012915134429931640625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 01:03 UTC 75.0% ▼

Duration: 6h 35m
Radius: 874 meters
Data Points: 97 AIS positions
Centroid: 46.6501, 142.7222
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 874.3999999999999772626324556767940521240234375,
    "duration_minutes": 395.3999999999999772626324556767940521240234375,
    "points": 97,
    "centroid": {
        "lat": 46.650089758762902647504233755171298980712890625,
        "lon": 142.722177167010300991023541428148746490478515625
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 01:03 UTC 75.0% ▼

Duration: 6h 35m
Radius: 874 meters
Data Points: 97 AIS positions
Centroid: 46.6501, 142.7222
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 874.3999999999999772626324556767940521240234375,
    "duration_minutes": 395.3999999999999772626324556767940521240234375,
    "points": 97,
    "centroid": {
        "lat": 46.650089758762902647504233755171298980712890625,
        "lon": 142.722177167010300991023541428148746490478515625
    },
    "bbox": {
        "min_lat": 46.64895829999999676829247619025409221649169921875,
        "min_lon": 142.71087330000000292784534394741058349609375,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 18, 2026 00:00 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 31m
Data Points: 96 AIS positions
Period: 2026-07-18T00:51:32+00:00 to 2026-07-18T07:22:36+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 391.1000000000000227373675443232059478759765625,
    "points_in_zone": 96,
    "first_point": {
        "ts": "2026-07-18T00:51:32+00:00",
        "lat": 46.65006670000000355003066943027079105377197265625,
        "lon": 142.722223299999996015685610473155975341796875
    },
    "last_point": {
        "ts": "2026-07-18T07:22:36+00:00",
        "lat": 46.64997670000000340451151714660227298736572265625,
        "lon": 142.72253829999999652500264346599578857421875
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 18, 2026 00:00 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 31m
Data Points: 96 AIS positions
Period: 2026-07-18T00:51:32+00:00 to 2026-07-18T07:22:36+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391.1000000000000227373675443232059478759765625,
    "points_in_zone": 96,
    "first_point": {
        "ts": "2026-07-18T00:51:32+00:00",
        "lat": 46.65006670000000355003066943027079105377197265625,
        "lon": 142.722223299999996015685610473155975341796875
    },
    "last_point": {
        "ts": "2026-07-18T07:22:36+00:00",
        "lat": 46.64997670000000340451151714660227298736572265625,
        "lon": 142.72253829999999652500264346599578857421875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 18, 2026 00:00 UTC 75.0% ▼

Duration: 6h 31m
Radius: 33 meters
Data Points: 96 AIS positions
Centroid: 46.6501, 142.7224
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 33.2999999999999971578290569595992565155029296875,
    "duration_minutes": 391.1000000000000227373675443232059478759765625,
    "points": 96,
    "centroid": {
        "lat": 46.65012505208334658846069942228496074676513671875,
        "lon": 142.72242074895831365211051888763904571533203125
    },
    "bbox": {
        "min_lat": 46.64986830000000139762050821445882320404052734375,
        "min_lon": 142.72208000000000538420863449573516845703125,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 18, 2026 00:00 UTC 75.0% ▼

Duration: 6h 31m
Radius: 33 meters
Data Points: 96 AIS positions
Centroid: 46.6501, 142.7224
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 33.2999999999999971578290569595992565155029296875,
    "duration_minutes": 391.1000000000000227373675443232059478759765625,
    "points": 96,
    "centroid": {
        "lat": 46.65012505208334658846069942228496074676513671875,
        "lon": 142.72242074895831365211051888763904571533203125
    },
    "bbox": {
        "min_lat": 46.64986830000000139762050821445882320404052734375,
        "min_lon": 142.72208000000000538420863449573516845703125,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.722646700000012742748367600142955780029296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 17, 2026 23:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 38m
Data Points: 102 AIS positions
Period: 2026-07-17T23:51:41+00:00 to 2026-07-18T06:29:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 398.1000000000000227373675443232059478759765625,
    "points_in_zone": 102,
    "first_point": {
        "ts": "2026-07-17T23:51:41+00:00",
        "lat": 46.64989829999999670917532057501375675201416015625,
        "lon": 142.722376700000012306190910749137401580810546875
    },
    "last_point": {
        "ts": "2026-07-18T06:29:45+00:00",
        "lat": 46.65019670000000218124114326201379299163818359375,
        "lon": 142.7225349999999934880179353058338165283203125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 17, 2026 23:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 38m
Data Points: 102 AIS positions
Period: 2026-07-17T23:51:41+00:00 to 2026-07-18T06:29:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 398.1000000000000227373675443232059478759765625,
    "points_in_zone": 102,
    "first_point": {
        "ts": "2026-07-17T23:51:41+00:00",
        "lat": 46.64989829999999670917532057501375675201416015625,
        "lon": 142.722376700000012306190910749137401580810546875
    },
    "last_point": {
        "ts": "2026-07-18T06:29:45+00:00",
        "lat": 46.65019670000000218124114326201379299163818359375,
        "lon": 142.7225349999999934880179353058338165283203125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 17, 2026 23:01 UTC 75.0% ▼

Duration: 6h 38m
Radius: 31 meters
Data Points: 102 AIS positions
Centroid: 46.6501, 142.7224
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 30.89999999999999857891452847979962825775146484375,
    "duration_minutes": 398.1000000000000227373675443232059478759765625,
    "points": 102,
    "centroid": {
        "lat": 46.65011511470589766759076155722141265869140625,
        "lon": 142.722379789215693790538352914154529571533203125
    },
    "bbox": {
        "min_lat": 46.6498950000000007776179700158536434173583984375,
        "min_lon": 142.72208000000000538420863449573516845703125,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.7225783000000092215486802160739898681640625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 17, 2026 23:01 UTC 75.0% ▼

Duration: 6h 38m
Radius: 31 meters
Data Points: 102 AIS positions
Centroid: 46.6501, 142.7224
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 30.89999999999999857891452847979962825775146484375,
    "duration_minutes": 398.1000000000000227373675443232059478759765625,
    "points": 102,
    "centroid": {
        "lat": 46.65011511470589766759076155722141265869140625,
        "lon": 142.722379789215693790538352914154529571533203125
    },
    "bbox": {
        "min_lat": 46.6498950000000007776179700158536434173583984375,
        "min_lon": 142.72208000000000538420863449573516845703125,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.7225783000000092215486802160739898681640625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 17, 2026 22:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 35m
Data Points: 101 AIS positions
Period: 2026-07-17T22:51:41+00:00 to 2026-07-18T05:27:25+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395.69999999999998863131622783839702606201171875,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-17T22:51:41+00:00",
        "lat": 46.64988170000000167192411026917397975921630859375,
        "lon": 142.72232500000001209627953357994556427001953125
    },
    "last_point": {
        "ts": "2026-07-18T05:27:25+00:00",
        "lat": 46.65025829999999729125192970968782901763916015625,
        "lon": 142.722471699999999827923602424561977386474609375
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 17, 2026 22:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 35m
Data Points: 101 AIS positions
Period: 2026-07-17T22:51:41+00:00 to 2026-07-18T05:27:25+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395.69999999999998863131622783839702606201171875,
    "points_in_zone": 101,
    "first_point": {
        "ts": "2026-07-17T22:51:41+00:00",
        "lat": 46.64988170000000167192411026917397975921630859375,
        "lon": 142.72232500000001209627953357994556427001953125
    },
    "last_point": {
        "ts": "2026-07-18T05:27:25+00:00",
        "lat": 46.65025829999999729125192970968782901763916015625,
        "lon": 142.722471699999999827923602424561977386474609375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jul 17, 2026 22:01 UTC 75.0% ▼

Duration: 6h 35m
Radius: 37 meters
Data Points: 101 AIS positions
Centroid: 46.6501, 142.7224
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 36.5,
    "duration_minutes": 395.69999999999998863131622783839702606201171875,
    "points": 101,
    "centroid": {
        "lat": 46.6500651000000061685568653047084808349609375,
        "lon": 142.72237244455442350954399444162845611572265625
    },
    "bbox": {
        "min_lat": 46.64987169999999849778760108165442943572998046875,
        "min_lon": 142.72208000000000538420863449573516845703125,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.7225783000000092215486802160739898681640625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jul 17, 2026 22:01 UTC 75.0% ▼

Duration: 6h 35m
Radius: 37 meters
Data Points: 101 AIS positions
Centroid: 46.6501, 142.7224
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 36.5,
    "duration_minutes": 395.69999999999998863131622783839702606201171875,
    "points": 101,
    "centroid": {
        "lat": 46.6500651000000061685568653047084808349609375,
        "lon": 142.72237244455442350954399444162845611572265625
    },
    "bbox": {
        "min_lat": 46.64987169999999849778760108165442943572998046875,
        "min_lon": 142.72208000000000538420863449573516845703125,
        "max_lat": 46.65039329999999750953065813519060611724853515625,
        "max_lon": 142.7225783000000092215486802160739898681640625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jul 17, 2026 21:00 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 34m
Data Points: 99 AIS positions
Period: 2026-07-17T21:51:51+00:00 to 2026-07-18T04:26:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 394.8999999999999772626324556767940521240234375,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-07-17T21:51:51+00:00",
        "lat": 46.64988670000000325899236486293375492095947265625,
        "lon": 142.7222633000000087122316472232341766357421875
    },
    "last_point": {
        "ts": "2026-07-18T04:26:45+00:00",
        "lat": 46.65027169999999756555553176440298557281494140625,
        "lon": 142.722496699999993552410160191357135772705078125
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jul 17, 2026 21:00 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 34m
Data Points: 99 AIS positions
Period: 2026-07-17T21:51:51+00:00 to 2026-07-18T04:26:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 394.8999999999999772626324556767940521240234375,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-07-17T21:51:51+00:00",
        "lat": 46.64988670000000325899236486293375492095947265625,
        "lon": 142.7222633000000087122316472232341766357421875
    },
    "last_point": {
        "ts": "2026-07-18T04:26:45+00:00",
        "lat": 46.65027169999999756555553176440298557281494140625,
        "lon": 142.722496699999993552410160191357135772705078125
    }
}

Methodology: 2026.01.18

PHOENIX II

IMO 8603638

Vessel information

Detected Events (100)

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

Recent Position Data

Data Source

Time (UTC)	Lat	Lon	Speed	Course	Zone
Jul 19 05:13	46.6498	142.7207	0.1 kn	228.1°	Prigorodnoye/Sakhalin LNG
Jul 19 05:11	46.6498	142.7208	0.2 kn	56.7°	Prigorodnoye/Sakhalin LNG
Jul 19 05:08	46.6498	142.7206	0.1 kn	311.6°	Prigorodnoye/Sakhalin LNG
Jul 19 05:03	46.6498	142.7207	0.1 kn	241.0°	Prigorodnoye/Sakhalin LNG
Jul 19 05:00	46.6498	142.7207	0.2 kn	85.5°	Prigorodnoye/Sakhalin LNG
Jul 19 04:56	46.6498	142.7206	0.2 kn	246.7°	Prigorodnoye/Sakhalin LNG
Jul 19 04:51	46.6498	142.7207	0.1 kn	355.9°	Prigorodnoye/Sakhalin LNG
Jul 19 04:47	46.6498	142.7206	0.2 kn	201.1°	Prigorodnoye/Sakhalin LNG
Jul 19 04:45	46.6498	142.7207	0.1 kn	205.8°	Prigorodnoye/Sakhalin LNG
Jul 19 04:40	46.6498	142.7207	0.2 kn	241.1°	Prigorodnoye/Sakhalin LNG
Jul 19 04:35	46.6498	142.7207	0.1 kn	235.3°	Prigorodnoye/Sakhalin LNG
Jul 19 04:33	46.6498	142.7207	0.1 kn	312.4°	Prigorodnoye/Sakhalin LNG
Jul 19 04:31	46.6498	142.7207	0.2 kn	104.6°	Prigorodnoye/Sakhalin LNG
Jul 19 04:25	46.6498	142.7207	0.1 kn	88.8°	Prigorodnoye/Sakhalin LNG
Jul 19 04:17	46.6498	142.7207	0.1 kn	174.1°	Prigorodnoye/Sakhalin LNG
Jul 19 04:13	46.6498	142.7207	0.0 kn	249.6°	Prigorodnoye/Sakhalin LNG
Jul 19 04:10	46.6498	142.7207	0.3 kn	63.3°	Prigorodnoye/Sakhalin LNG
Jul 19 04:07	46.6498	142.7206	0.2 kn	248.8°	Prigorodnoye/Sakhalin LNG
Jul 19 04:05	46.6498	142.7207	0.2 kn	114.7°	Prigorodnoye/Sakhalin LNG
Jul 19 03:59	46.6498	142.7207	0.1 kn	117.1°	Prigorodnoye/Sakhalin LNG

PHOENIX II

IMO 8603638

Vessel information

Detected Events (100)

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

Recent Position Data

Data Source

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