Intelligence Feed - FleetLeaks

IMO 9826720

Vessel information

Vessel Name ALEXANDER

IMO Number 9826720

MMSI 636018682

Vessel Type Tanker - Hazard C (Minor)

Flag 🇱🇷 Liberia

Call Sign D5QW7

Length 250 m

Beam 44 m

Detected Events (100)

Zone Dwell Western Mediterranean Surveillance Zone

Jul 19, 2026 13:31 UTC 80.0% ▼

Zone: Western Mediterranean Surveillance Zone
Duration: 2h 24m
Data Points: 7 AIS positions
Period: 2026-07-19T13:31:33+00:00 to 2026-07-19T15:55:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_013",
    "zone_name": "Western Mediterranean Surveillance Zone",
    "dwell_minutes": 144.19999999999998863131622783839702606201171875,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-07-19T13:31:33+00:00",
        "lat": 36.26802670000000006211848813109099864959716796875,
        "lon": -8.1572033000000008229335435316897928714752197265625
    },
    "last_point": {
        "ts": "2026-07-19T15:55:48+00:00",
        "lat": 36.14110500000000314457793137989938259124755859375,
        "lon": -7.48348169999999957013869789079762995243072509765625
    }
}

Methodology: 2026.01.18

Zone Dwell Western Mediterranean Surveillance Zone

Jul 19, 2026 12:02 UTC 80.0% ▼

Zone: Western Mediterranean Surveillance Zone
Duration: 3h 53m
Data Points: 13 AIS positions
Period: 2026-07-19T12:02:41+00:00 to 2026-07-19T15:55:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_013",
    "zone_name": "Western Mediterranean Surveillance Zone",
    "dwell_minutes": 233.099999999999994315658113919198513031005859375,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-19T12:02:41+00:00",
        "lat": 36.348663299999998343992047011852264404296875,
        "lon": -8.56431669999999911624399828724563121795654296875
    },
    "last_point": {
        "ts": "2026-07-19T15:55:48+00:00",
        "lat": 36.14110500000000314457793137989938259124755859375,
        "lon": -7.48348169999999957013869789079762995243072509765625
    }
}

Methodology: 2026.01.18

Zone Dwell Western Mediterranean Surveillance Zone

Jul 19, 2026 11:18 UTC 80.0% ▼

Zone: Western Mediterranean Surveillance Zone
Duration: 4h 37m
Data Points: 14 AIS positions
Period: 2026-07-19T11:18:17+00:00 to 2026-07-19T15:55:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_013",
    "zone_name": "Western Mediterranean Surveillance Zone",
    "dwell_minutes": 277.5,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-19T11:18:17+00:00",
        "lat": 36.38239829999999841447788639925420284271240234375,
        "lon": -8.77271329999999949222910800017416477203369140625
    },
    "last_point": {
        "ts": "2026-07-19T15:55:48+00:00",
        "lat": 36.14110500000000314457793137989938259124755859375,
        "lon": -7.48348169999999957013869789079762995243072509765625
    }
}

Methodology: 2026.01.18

Zone Dwell Western Mediterranean Surveillance Zone

Jul 19, 2026 09:16 UTC 80.0% ▼

Zone: Western Mediterranean Surveillance Zone
Duration: 6h 28m
Data Points: 14 AIS positions
Period: 2026-07-19T09:16:07+00:00 to 2026-07-19T15:44:58+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_013",
    "zone_name": "Western Mediterranean Surveillance Zone",
    "dwell_minutes": 388.8999999999999772626324556767940521240234375,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-19T09:16:07+00:00",
        "lat": 36.497801699999996571932570077478885650634765625,
        "lon": -9.3232517000000001416992745362222194671630859375
    },
    "last_point": {
        "ts": "2026-07-19T15:44:58+00:00",
        "lat": 36.15180500000000307636582874692976474761962890625,
        "lon": -7.53285830000000000694626578479073941707611083984375
    }
}

Methodology: 2026.01.18

Zone Dwell Western Mediterranean Surveillance Zone

Jul 19, 2026 08:50 UTC 80.0% ▼

Zone: Western Mediterranean Surveillance Zone
Duration: 6h 27m
Data Points: 13 AIS positions
Period: 2026-07-19T08:50:06+00:00 to 2026-07-19T15:17:40+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_013",
    "zone_name": "Western Mediterranean Surveillance Zone",
    "dwell_minutes": 387.6000000000000227373675443232059478759765625,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-19T08:50:06+00:00",
        "lat": 36.56495670000000330901457346044480800628662109375,
        "lon": -9.4108599999999995588950696401298046112060546875
    },
    "last_point": {
        "ts": "2026-07-19T15:17:40+00:00",
        "lat": 36.1770082999999971207216731272637844085693359375,
        "lon": -7.66089169999999963778236633515916764736175537109375
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 19, 2026 07:29 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 1h 46m
Data Points: 5 AIS positions
Period: 2026-07-19T07:29:23+00:00 to 2026-07-19T09:16:07+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_118",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 106.7000000000000028421709430404007434844970703125,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-07-19T07:29:23+00:00",
        "lat": 36.8063750000000027284841053187847137451171875,
        "lon": -9.642386699999999422061591758392751216888427734375
    },
    "last_point": {
        "ts": "2026-07-19T09:16:07+00:00",
        "lat": 36.497801699999996571932570077478885650634765625,
        "lon": -9.3232517000000001416992745362222194671630859375
    }
}

Methodology: 2026.01.18

Zone Dwell Central Atlantic Surveillance Zone

Jul 18, 2026 21:19 UTC 80.0% ▼

Zone: Central Atlantic Surveillance Zone
Duration: 1h 14m
Data Points: 19 AIS positions
Period: 2026-07-18T21:19:20+00:00 to 2026-07-18T22:33:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_014",
    "zone_name": "Central Atlantic Surveillance Zone",
    "dwell_minutes": 74.400000000000005684341886080801486968994140625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-18T21:19:20+00:00",
        "lat": 39.041145000000000209183781407773494720458984375,
        "lon": -10.19033830000000051541064749471843242645263671875
    },
    "last_point": {
        "ts": "2026-07-18T22:33:42+00:00",
        "lat": 38.74751830000000296649886877276003360748291015625,
        "lon": -10.186813300000000737099981051869690418243408203125
    }
}

Methodology: 2026.01.18

Zone Dwell Central Russian Monitoring Zone

Jul 16, 2026 13:01 UTC 80.0% ▼

Zone: Central Russian Monitoring Zone
Duration: 1h 47m
Data Points: 30 AIS positions
Period: 2026-07-16T13:01:32+00:00 to 2026-07-16T14:49:02+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_100",
    "zone_name": "Central Russian Monitoring Zone",
    "dwell_minutes": 107.5,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-07-16T13:01:32+00:00",
        "lat": 49.9183282999999988760464475490152835845947265625,
        "lon": -3.035341700000000031423041946254670619964599609375
    },
    "last_point": {
        "ts": "2026-07-16T14:49:02+00:00",
        "lat": 49.692378300000001445368980057537555694580078125,
        "lon": -3.653196700000000074481931733316741883754730224609375
    }
}

Methodology: 2026.01.18

Zone Dwell Unknown Maritime Surveillance Zone

Jul 16, 2026 10:27 UTC 80.0% ▼

Zone: Unknown Maritime Surveillance Zone
Duration: 2h 43m
Data Points: 13 AIS positions
Period: 2026-07-16T10:27:02+00:00 to 2026-07-16T13:10:15+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_110",
    "zone_name": "Unknown Maritime Surveillance Zone",
    "dwell_minutes": 163.19999999999998863131622783839702606201171875,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-16T10:27:02+00:00",
        "lat": 50.08814830000000029031070880591869354248046875,
        "lon": -2.206958300000000150475898408330976963043212890625
    },
    "last_point": {
        "ts": "2026-07-16T13:10:15+00:00",
        "lat": 49.9005250000000017962520360015332698822021484375,
        "lon": -3.084578299999999995151256371173076331615447998046875
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Sanctioned Vessel Zone

Jul 16, 2026 07:00 UTC 80.0% ▼

Zone: Malacca Strait Sanctioned Vessel Zone
Duration: 1h 8m
Data Points: 23 AIS positions
Period: 2026-07-16T07:00:22+00:00 to 2026-07-16T08:09:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_131",
    "zone_name": "Malacca Strait Sanctioned Vessel Zone",
    "dwell_minutes": 68.7999999999999971578290569595992565155029296875,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-16T07:00:22+00:00",
        "lat": 50.24254669999999833862602827139198780059814453125,
        "lon": -1.3057749999999999079847157190670259296894073486328125
    },
    "last_point": {
        "ts": "2026-07-16T08:09:13+00:00",
        "lat": 50.18242330000000350764821632765233516693115234375,
        "lon": -1.6328466999999999842430042917840182781219482421875
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Sanctioned Vessel Zone

Jul 16, 2026 06:00 UTC 80.0% ▼

Zone: Malacca Strait Sanctioned Vessel Zone
Duration: 2h 8m
Data Points: 40 AIS positions
Period: 2026-07-16T06:00:54+00:00 to 2026-07-16T08:09:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_131",
    "zone_name": "Malacca Strait Sanctioned Vessel Zone",
    "dwell_minutes": 128.30000000000001136868377216160297393798828125,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-07-16T06:00:54+00:00",
        "lat": 50.30240500000000025693225325085222721099853515625,
        "lon": -0.96047000000000004593658786689047701656818389892578125
    },
    "last_point": {
        "ts": "2026-07-16T08:09:13+00:00",
        "lat": 50.18242330000000350764821632765233516693115234375,
        "lon": -1.6328466999999999842430042917840182781219482421875
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Sanctioned Vessel Zone

Jul 16, 2026 05:08 UTC 80.0% ▼

Zone: Malacca Strait Sanctioned Vessel Zone
Duration: 3 hours
Data Points: 54 AIS positions
Period: 2026-07-16T05:08:18+00:00 to 2026-07-16T08:09:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_131",
    "zone_name": "Malacca Strait Sanctioned Vessel Zone",
    "dwell_minutes": 180.900000000000005684341886080801486968994140625,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-07-16T05:08:18+00:00",
        "lat": 50.36760170000000158552211360074579715728759765625,
        "lon": -0.624951699999999998880184648442082107067108154296875
    },
    "last_point": {
        "ts": "2026-07-16T08:09:13+00:00",
        "lat": 50.18242330000000350764821632765233516693115234375,
        "lon": -1.6328466999999999842430042917840182781219482421875
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Sanctioned Vessel Zone

Jul 16, 2026 04:03 UTC 80.0% ▼

Zone: Malacca Strait Sanctioned Vessel Zone
Duration: 4h 5m
Data Points: 69 AIS positions
Period: 2026-07-16T04:03:53+00:00 to 2026-07-16T08:09:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_131",
    "zone_name": "Malacca Strait Sanctioned Vessel Zone",
    "dwell_minutes": 245.30000000000001136868377216160297393798828125,
    "points_in_zone": 69,
    "first_point": {
        "ts": "2026-07-16T04:03:53+00:00",
        "lat": 50.43845830000000063364495872519910335540771484375,
        "lon": -0.2033750000000000002220446049250313080847263336181640625
    },
    "last_point": {
        "ts": "2026-07-16T08:09:13+00:00",
        "lat": 50.18242330000000350764821632765233516693115234375,
        "lon": -1.6328466999999999842430042917840182781219482421875
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Sanctioned Vessel Zone

Jul 16, 2026 03:00 UTC 80.0% ▼

Zone: Malacca Strait Sanctioned Vessel Zone
Duration: 5h 8m
Data Points: 93 AIS positions
Period: 2026-07-16T03:00:54+00:00 to 2026-07-16T08:09:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_131",
    "zone_name": "Malacca Strait Sanctioned Vessel Zone",
    "dwell_minutes": 308.30000000000001136868377216160297393798828125,
    "points_in_zone": 93,
    "first_point": {
        "ts": "2026-07-16T03:00:54+00:00",
        "lat": 50.507828299999999899227987043559551239013671875,
        "lon": 0.19793830000000001145821215686737559735774993896484375
    },
    "last_point": {
        "ts": "2026-07-16T08:09:13+00:00",
        "lat": 50.18242330000000350764821632765233516693115234375,
        "lon": -1.6328466999999999842430042917840182781219482421875
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Sanctioned Vessel Zone

Jul 16, 2026 02:43 UTC 80.0% ▼

Zone: Malacca Strait Sanctioned Vessel Zone
Duration: 5h 25m
Data Points: 98 AIS positions
Period: 2026-07-16T02:43:36+00:00 to 2026-07-16T08:09:13+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_131",
    "zone_name": "Malacca Strait Sanctioned Vessel Zone",
    "dwell_minutes": 325.6000000000000227373675443232059478759765625,
    "points_in_zone": 98,
    "first_point": {
        "ts": "2026-07-16T02:43:36+00:00",
        "lat": 50.52658000000000271256794803775846958160400390625,
        "lon": 0.30563669999999998339035300887189805507659912109375
    },
    "last_point": {
        "ts": "2026-07-16T08:09:13+00:00",
        "lat": 50.18242330000000350764821632765233516693115234375,
        "lon": -1.6328466999999999842430042917840182781219482421875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Monitoring Zone

Jul 16, 2026 01:01 UTC 80.0% ▼

Zone: English Channel Monitoring Zone
Duration: 1h 52m
Data Points: 46 AIS positions
Period: 2026-07-16T01:01:48+00:00 to 2026-07-16T02:53:54+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_143",
    "zone_name": "English Channel Monitoring Zone",
    "dwell_minutes": 112.099999999999994315658113919198513031005859375,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-07-16T01:01:48+00:00",
        "lat": 50.6919333000000023048414732329547405242919921875,
        "lon": 0.83550829999999998154436298136715777218341827392578125
    },
    "last_point": {
        "ts": "2026-07-16T02:53:54+00:00",
        "lat": 50.5154050000000012232703738845884799957275390625,
        "lon": 0.2416483000000000103124619954542140476405620574951171875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Monitoring Zone

Jul 16, 2026 00:01 UTC 80.0% ▼

Zone: English Channel Monitoring Zone
Duration: 2h 52m
Data Points: 68 AIS positions
Period: 2026-07-16T00:01:48+00:00 to 2026-07-16T02:53:54+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_143",
    "zone_name": "English Channel Monitoring Zone",
    "dwell_minutes": 172.099999999999994315658113919198513031005859375,
    "points_in_zone": 68,
    "first_point": {
        "ts": "2026-07-16T00:01:48+00:00",
        "lat": 50.8097183000000001129592419601976871490478515625,
        "lon": 1.08240669999999994388417690061032772064208984375
    },
    "last_point": {
        "ts": "2026-07-16T02:53:54+00:00",
        "lat": 50.5154050000000012232703738845884799957275390625,
        "lon": 0.2416483000000000103124619954542140476405620574951171875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Monitoring Zone

Jul 15, 2026 23:57 UTC 80.0% ▼

Zone: English Channel Monitoring Zone
Duration: 2h 56m
Data Points: 69 AIS positions
Period: 2026-07-15T23:57:48+00:00 to 2026-07-16T02:53:54+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_143",
    "zone_name": "English Channel Monitoring Zone",
    "dwell_minutes": 176.099999999999994315658113919198513031005859375,
    "points_in_zone": 69,
    "first_point": {
        "ts": "2026-07-15T23:57:48+00:00",
        "lat": 50.817603300000001809166860766708850860595703125,
        "lon": 1.0984133000000000368601149602909572422504425048828125
    },
    "last_point": {
        "ts": "2026-07-16T02:53:54+00:00",
        "lat": 50.5154050000000012232703738845884799957275390625,
        "lon": 0.2416483000000000103124619954542140476405620574951171875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 21:01 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 1h 25m
Data Points: 33 AIS positions
Period: 2026-07-15T21:01:02+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 85.2999999999999971578290569595992565155029296875,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-07-15T21:01:02+00:00",
        "lat": 51.2196016999999983454472385346889495849609375,
        "lon": 1.7547850000000000392219590139575302600860595703125
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 20:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 2h 23m
Data Points: 57 AIS positions
Period: 2026-07-15T20:03:19+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 143,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-07-15T20:03:19+00:00",
        "lat": 51.41907669999999797028067405335605144500732421875,
        "lon": 1.885734999999999939035433271783404052257537841796875
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 19:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 3h 22m
Data Points: 70 AIS positions
Period: 2026-07-15T19:03:47+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 202.5,
    "points_in_zone": 70,
    "first_point": {
        "ts": "2026-07-15T19:03:47+00:00",
        "lat": 51.526898299999999153442331589758396148681640625,
        "lon": 1.78393829999999997681925378856249153614044189453125
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 18:21 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 4h 5m
Data Points: 80 AIS positions
Period: 2026-07-15T18:21:10+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 245.099999999999994315658113919198513031005859375,
    "points_in_zone": 80,
    "first_point": {
        "ts": "2026-07-15T18:21:10+00:00",
        "lat": 51.5165132999999997309714672155678272247314453125,
        "lon": 1.7501400000000000289901436190120875835418701171875
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Sts English Channel Surveillance Zone

Jul 15, 2026 17:00 UTC 72/100 ▼

Vessel A: IMO 9283459 (NORTHERN OSPREY) Panama

Vessel B: IMO 9826720 (ALEXANDER) Liberia

Minimum Distance: 11 meters
Average Distance: 56 meters
Duration: 39 minutes
Period: 2026-07-15T17:23:15+00:00 to 2026-07-15T18:02:44+00:00
Vessel A Avg Speed: 0.3 knots
Vessel B Avg Speed: 0.3 knots
Zone: English Channel Surveillance Zone

Confidence Analysis

Score: 72/100

Moderate-confidence STS candidate. Two tankers (NORTHERN OSPREY and ALEXANDER) maintained close proximity (min 11m, avg 56m) for 40 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 56m
Duration	5/25	Duration 40 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	12/15	Distance variance ±34m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 352005487,
        "imo": 9283459,
        "name": "NORTHERN OSPREY",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 636018682,
        "imo": 9826720,
        "name": "ALEXANDER",
        "flag": "Liberia"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 56.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 34.2000000000000028421709430404007434844970703125,
    "duration_minutes": 39.5,
    "overlap_duration_s": 2369,
    "speed_a_avg": 0.270000000000000017763568394002504646778106689453125,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.340000000000000024424906541753443889319896697998046875,
    "speed_b_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.270000000000000017763568394002504646778106689453125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.340000000000000024424906541753443889319896697998046875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-15T17:23:15+00:00",
        "end": "2026-07-15T18:02:44+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "score": {
        "value": 72,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 56m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 40 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b134m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: English Channel Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NORTHERN OSPREY and ALEXANDER) maintained close proximity (min 11m, avg 56m) for 40 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 17:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 5h 25m
Data Points: 88 AIS positions
Period: 2026-07-15T17:00:39+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 325.6000000000000227373675443232059478759765625,
    "points_in_zone": 88,
    "first_point": {
        "ts": "2026-07-15T17:00:39+00:00",
        "lat": 51.520679999999998699422576464712619781494140625,
        "lon": 1.753509999999999902087211012258194386959075927734375
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 17:00 UTC 75.0% ▼

Duration: 1h 55m
Radius: 1,083 meters
Data Points: 17 AIS positions
Centroid: 51.5180, 1.7537
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1082.700000000000045474735088646411895751953125,
    "duration_minutes": 115.2999999999999971578290569595992565155029296875,
    "points": 17,
    "centroid": {
        "lat": 51.5179846058823471821597195230424404144287109375,
        "lon": 1.7536774470588236685131278136395849287509918212890625
    },
    "bbox": {
        "min_lat": 51.51630829999999861001924728043377399444580078125,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.5217583000000018955688574351370334625244140625,
        "max_lon": 1.768054999999999932214223008486442267894744873046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Sts English Channel Surveillance Zone

Jul 15, 2026 16:43 UTC 85/100 ▼

Vessel A: IMO 9283459 (NORTHERN OSPREY) Panama

Vessel B: IMO 9826720 (ALEXANDER) Liberia

Minimum Distance: 11 meters
Average Distance: 48 meters
Duration: 1h 19m
Period: 2026-07-15T16:43:09+00:00 to 2026-07-15T18:02:44+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.2 knots
Zone: English Channel Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (NORTHERN OSPREY and ALEXANDER) maintained close proximity (min 11m, avg 48m) for 80 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 48m
Duration	15/25	Duration 80 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±28m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 352005487,
        "imo": 9283459,
        "name": "NORTHERN OSPREY",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 636018682,
        "imo": 9826720,
        "name": "ALEXANDER",
        "flag": "Liberia"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 48,
    "distance_consistency_m": 28.10000000000000142108547152020037174224853515625,
    "duration_minutes": 79.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 4775,
    "speed_a_avg": 0.179999999999999993338661852249060757458209991455078125,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.200000000000000011102230246251565404236316680908203125,
    "speed_b_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.179999999999999993338661852249060757458209991455078125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-15T16:43:09+00:00",
        "end": "2026-07-15T18:02:44+00:00"
    },
    "points_count": {
        "vessel_a": 17,
        "vessel_b": 17
    },
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 48m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 80 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b128m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: English Channel Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (NORTHERN OSPREY and ALEXANDER) maintained close proximity (min 11m, avg 48m) for 80 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 16:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 22m
Data Points: 94 AIS positions
Period: 2026-07-15T16:03:38+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 382.69999999999998863131622783839702606201171875,
    "points_in_zone": 94,
    "first_point": {
        "ts": "2026-07-15T16:03:38+00:00",
        "lat": 51.52139329999999972642399370670318603515625,
        "lon": 1.7531616999999999340076328735449351370334625244140625
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 16:03 UTC 75.0% ▼

Duration: 2h 52m
Radius: 1,056 meters
Data Points: 23 AIS positions
Centroid: 51.5188, 1.7536
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1055.90000000000009094947017729282379150390625,
    "duration_minutes": 172.30000000000001136868377216160297393798828125,
    "points": 23,
    "centroid": {
        "lat": 51.51882014347825844424733077175915241241455078125,
        "lon": 1.753590360869564879209292485029436647891998291015625
    },
    "bbox": {
        "min_lat": 51.51630829999999861001924728043377399444580078125,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.5217583000000018955688574351370334625244140625,
        "max_lon": 1.768054999999999932214223008486442267894744873046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Sts English Channel Surveillance Zone

Jul 15, 2026 15:24 UTC 95/100 ▼

Vessel A: IMO 9826720 (ALEXANDER) Liberia

Vessel B: IMO 9283459 (NORTHERN OSPREY) Panama

Minimum Distance: 11 meters
Average Distance: 45 meters
Duration: 2h 51m
Period: 2026-07-15T15:03:38+00:00 to 2026-07-15T17:54:38+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: English Channel Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 11m, avg 45m) for 171 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 45m
Duration	25/25	Duration 171 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±27m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 636018682,
        "imo": 9826720,
        "name": "ALEXANDER",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005487,
        "imo": 9283459,
        "name": "NORTHERN OSPREY",
        "flag": "Panama"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 45,
    "distance_consistency_m": 27,
    "duration_minutes": 171,
    "overlap_duration_s": 10260,
    "speed_a_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_a_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-15T15:03:38+00:00",
        "end": "2026-07-15T17:54:38+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 45m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 171 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b127m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: English Channel Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 11m, avg 45m) for 171 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 15:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 28m
Data Points: 95 AIS positions
Period: 2026-07-15T15:57:37+00:00 to 2026-07-15T22:26:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 388.69999999999998863131622783839702606201171875,
    "points_in_zone": 95,
    "first_point": {
        "ts": "2026-07-15T15:57:37+00:00",
        "lat": 51.5214500000000015234036254696547985076904296875,
        "lon": 1.75317670000000003227569322916679084300994873046875
    },
    "last_point": {
        "ts": "2026-07-15T22:26:18+00:00",
        "lat": 51.00983999999999696228769607841968536376953125,
        "lon": 1.431950000000000056132876125047914683818817138671875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 15:00 UTC 75.0% ▼

Duration: 3h 55m
Radius: 1,044 meters
Data Points: 31 AIS positions
Centroid: 51.5195, 1.7534
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1044.09999999999990905052982270717620849609375,
    "duration_minutes": 235.30000000000001136868377216160297393798828125,
    "points": 31,
    "centroid": {
        "lat": 51.51951773870968054325203411281108856201171875,
        "lon": 1.7534472548387094459343416019692085683345794677734375
    },
    "bbox": {
        "min_lat": 51.51630829999999861001924728043377399444580078125,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.5217583000000018955688574351370334625244140625,
        "max_lon": 1.768054999999999932214223008486442267894744873046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Sts🛰️? English Channel Surveillance Zone

Jul 15, 2026 14:06 UTC 95/100 ▼

Vessel A: IMO 9826720 (ALEXANDER) Liberia

Vessel B: IMO 9283459 (NORTHERN OSPREY) Panama

Minimum Distance: 11 meters
Average Distance: 43 meters
Duration: 3h 48m
Period: 2026-07-15T14:06:38+00:00 to 2026-07-15T17:54:38+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: English Channel Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 11m, avg 43m) for 228 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 43m
Duration	25/25	Duration 228 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±24m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: English Channel Surveillance Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260715T174027_20260715T174052_008557_010F0B_91FF_COG • Acquired: 2026-07-15T17:40:27.002148Z • Platform: sentinel-1c

Click image to view full size

Searched: 2026-07-15T20:30:17.420713+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 636018682,
        "imo": 9826720,
        "name": "ALEXANDER",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005487,
        "imo": 9283459,
        "name": "NORTHERN OSPREY",
        "flag": "Panama"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 43.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 23.5,
    "duration_minutes": 228,
    "overlap_duration_s": 13680,
    "speed_a_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_a_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_b_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-15T14:06:38+00:00",
        "end": "2026-07-15T17:54:38+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 43m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 228 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b124m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: English Channel Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 11m, avg 43m) for 228 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 51.5203580000000016525518731214106082916259765625,
            "lon": 1.753244299999999977757170199765823781490325927734375
        },
        "time_window": {
            "start_ts": "2026-07-15T14:06:38+00:00",
            "end_ts": "2026-07-15T17:54:38+00:00"
        },
        "searched_at": "2026-07-15T20:30:17.420713+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260715T174027_20260715T174052_008557_010F0B_91FF_COG",
        "scene_datetime": "2026-07-15T17:40:27.002148Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": -0.30670900000000000940048039410612545907497406005859375,
            "min_lat": 50.39098700000000263798938249237835407257080078125,
            "max_lon": 3.8464369999999998839257386862300336360931396484375,
            "max_lat": 52.2957310000000035188350011594593524932861328125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/07\/event_942018_thumbnail_20260715203021.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/07\/event_942018_thumbnail_20260715203021.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 14:06 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 35m
Data Points: 85 AIS positions
Period: 2026-07-15T14:51:37+00:00 to 2026-07-15T21:26:41+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 395.1000000000000227373675443232059478759765625,
    "points_in_zone": 85,
    "first_point": {
        "ts": "2026-07-15T14:51:37+00:00",
        "lat": 51.5215917000000018788341549225151538848876953125,
        "lon": 1.7535817000000000209780637305811978876590728759765625
    },
    "last_point": {
        "ts": "2026-07-15T21:26:41+00:00",
        "lat": 51.1492649999999997589839040301740169525146484375,
        "lon": 1.64927329999999994214476828346960246562957763671875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 14:06 UTC 75.0% ▼

Duration: 4h 49m
Radius: 1,025 meters
Data Points: 38 AIS positions
Centroid: 51.5196, 1.7537
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1024.59999999999990905052982270717620849609375,
    "duration_minutes": 289.30000000000001136868377216160297393798828125,
    "points": 38,
    "centroid": {
        "lat": 51.5196276315789560840130434371531009674072265625,
        "lon": 1.7536939447368424804807318651000969111919403076171875
    },
    "bbox": {
        "min_lat": 51.51630829999999861001924728043377399444580078125,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.5217583000000018955688574351370334625244140625,
        "max_lon": 1.768054999999999932214223008486442267894744873046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 13:06 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 37m
Data Points: 65 AIS positions
Period: 2026-07-15T13:51:38+00:00 to 2026-07-15T20:29:19+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 397.69999999999998863131622783839702606201171875,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-07-15T13:51:38+00:00",
        "lat": 51.51977500000000276259015663526952266693115234375,
        "lon": 1.754431700000000038386360756703652441501617431640625
    },
    "last_point": {
        "ts": "2026-07-15T20:29:19+00:00",
        "lat": 51.3298817000000013877070159651339054107666015625,
        "lon": 1.8318399999999999128164063222357071936130523681640625
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 13:06 UTC 75.0% ▼

Duration: 5h 49m
Radius: 1,037 meters
Data Points: 43 AIS positions
Centroid: 51.5195, 1.7536
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1036.90000000000009094947017729282379150390625,
    "duration_minutes": 349.30000000000001136868377216160297393798828125,
    "points": 43,
    "centroid": {
        "lat": 51.51952736279069000602248706854879856109619140625,
        "lon": 1.7535503093023259157945403785561211407184600830078125
    },
    "bbox": {
        "min_lat": 51.51630829999999861001924728043377399444580078125,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.5217583000000018955688574351370334625244140625,
        "max_lon": 1.768054999999999932214223008486442267894744873046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Sts English Channel Surveillance Zone

Jul 15, 2026 13:02 UTC 95/100 ▼

Vessel A: IMO 9826720 (ALEXANDER) Liberia

Vessel B: IMO 9283459 (NORTHERN OSPREY) Panama

Minimum Distance: 11 meters
Average Distance: 43 meters
Duration: 4h 9m
Period: 2026-07-15T13:45:37+00:00 to 2026-07-15T17:54:38+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.2 knots
Zone: English Channel Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 11m, avg 43m) for 249 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 11m, avg 43m
Duration	25/25	Duration 249 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±23m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 636018682,
        "imo": 9826720,
        "name": "ALEXANDER",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005487,
        "imo": 9283459,
        "name": "NORTHERN OSPREY",
        "flag": "Panama"
    },
    "min_distance_m": 11.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 42.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 22.89999999999999857891452847979962825775146484375,
    "duration_minutes": 249,
    "overlap_duration_s": 14941,
    "speed_a_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-15T13:45:37+00:00",
        "end": "2026-07-15T17:54:38+00:00"
    },
    "points_count": {
        "vessel_a": 31,
        "vessel_b": 31
    },
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 43m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 249 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b123m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: English Channel Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 11m, avg 43m) for 249 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 12:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 32m
Data Points: 48 AIS positions
Period: 2026-07-15T12:33:37+00:00 to 2026-07-15T19:05:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 392.19999999999998863131622783839702606201171875,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-07-15T12:33:37+00:00",
        "lat": 51.5154950000000013687895261682569980621337890625,
        "lon": 1.7506866999999999290338337232242338359355926513671875
    },
    "last_point": {
        "ts": "2026-07-15T19:05:47+00:00",
        "lat": 51.528064999999998008206603117287158966064453125,
        "lon": 1.788663300000000067058181230095215141773223876953125
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 12:00 UTC 75.0% ▼

Duration: 6h 34m
Radius: 1,056 meters
Data Points: 46 AIS positions
Centroid: 51.5193, 1.7534
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1056,
    "duration_minutes": 394.30000000000001136868377216160297393798828125,
    "points": 46,
    "centroid": {
        "lat": 51.51926133913043059919800725765526294708251953125,
        "lon": 1.75337608695652225065941820503212511539459228515625
    },
    "bbox": {
        "min_lat": 51.51525170000000031222953111864626407623291015625,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.5217583000000018955688574351370334625244140625,
        "max_lon": 1.768054999999999932214223008486442267894744873046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 11:51 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 38m
Data Points: 43 AIS positions
Period: 2026-07-15T11:51:38+00:00 to 2026-07-15T18:29:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 398,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-07-15T11:51:38+00:00",
        "lat": 51.5153949999999980491338646970689296722412109375,
        "lon": 1.7508516999999998997594730099081061780452728271484375
    },
    "last_point": {
        "ts": "2026-07-15T18:29:38+00:00",
        "lat": 51.5172366999999979952917783521115779876708984375,
        "lon": 1.751184999999999991615595718030817806720733642578125
    }
}

Methodology: 2026.01.18

Sts English Channel Surveillance Zone

Jul 15, 2026 11:51 UTC 95/100 ▼

Vessel A: IMO 9826720 (ALEXANDER) Liberia

Vessel B: IMO 9283459 (NORTHERN OSPREY) Panama

Minimum Distance: 25 meters
Average Distance: 38 meters
Duration: 5 hours
Period: 2026-07-15T11:51:38+00:00 to 2026-07-15T16:51:38+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: English Channel Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 25m, avg 38m) for 300 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 25m, avg 38m
Duration	25/25	Duration 300 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±7m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 636018682,
        "imo": 9826720,
        "name": "ALEXANDER",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005487,
        "imo": 9283459,
        "name": "NORTHERN OSPREY",
        "flag": "Panama"
    },
    "min_distance_m": 25.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 38.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 7.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 300,
    "overlap_duration_s": 18000,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-15T11:51:38+00:00",
        "end": "2026-07-15T16:51:38+00:00"
    },
    "points_count": {
        "vessel_a": 32,
        "vessel_b": 32
    },
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 25m, avg 38m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 300 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: English Channel Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALEXANDER and NORTHERN OSPREY) maintained close proximity (min 25m, avg 38m) for 300 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in English Channel Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 11:51 UTC 75.0% ▼

Duration: 6h 38m
Radius: 446 meters
Data Points: 43 AIS positions
Centroid: 51.5192, 1.7528
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 446.30000000000001136868377216160297393798828125,
    "duration_minutes": 398,
    "points": 43,
    "centroid": {
        "lat": 51.51916697674419509667131933383643627166748046875,
        "lon": 1.752771474418604924494502483867108821868896484375
    },
    "bbox": {
        "min_lat": 51.51525170000000031222953111864626407623291015625,
        "min_lon": 1.7501400000000000289901436190120875835418701171875,
        "max_lat": 51.521621699999997190388967283070087432861328125,
        "max_lon": 1.7559533000000000502183183925808407366275787353515625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 10:03 UTC 75.0% ▼

Duration: 6h 23m
Radius: 485 meters
Data Points: 33 AIS positions
Centroid: 51.5194, 1.7530
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 484.8999999999999772626324556767940521240234375,
    "duration_minutes": 383.80000000000001136868377216160297393798828125,
    "points": 33,
    "centroid": {
        "lat": 51.5194382818181821903635864146053791046142578125,
        "lon": 1.7529628333333333589649782879860140383243560791015625
    },
    "bbox": {
        "min_lat": 51.515123299999999062492861412465572357177734375,
        "min_lon": 1.750163300000000088374463302898220717906951904296875,
        "max_lat": 51.521621699999997190388967283070087432861328125,
        "max_lon": 1.7559533000000000502183183925808407366275787353515625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 10:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 23m
Data Points: 33 AIS positions
Period: 2026-07-15T10:27:49+00:00 to 2026-07-15T16:51:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 383.80000000000001136868377216160297393798828125,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-07-15T10:27:49+00:00",
        "lat": 51.515123299999999062492861412465572357177734375,
        "lon": 1.751984999999999903508296483778394758701324462890625
    },
    "last_point": {
        "ts": "2026-07-15T16:51:38+00:00",
        "lat": 51.52089000000000140744305099360644817352294921875,
        "lon": 1.7535600000000000076028072726330719888210296630859375
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 04:12 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 15m
Data Points: 4 AIS positions
Period: 2026-07-15T04:12:38+00:00 to 2026-07-15T10:27:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 375.19999999999998863131622783839702606201171875,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-07-15T04:12:38+00:00",
        "lat": 51.51954169999999777473931317217648029327392578125,
        "lon": 1.7539116999999999624293423039489425718784332275390625
    },
    "last_point": {
        "ts": "2026-07-15T10:27:49+00:00",
        "lat": 51.515123299999999062492861412465572357177734375,
        "lon": 1.751984999999999903508296483778394758701324462890625
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 03:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 15m
Data Points: 4 AIS positions
Period: 2026-07-15T03:48:38+00:00 to 2026-07-15T10:03:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 375.19999999999998863131622783839702606201171875,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-07-15T03:48:38+00:00",
        "lat": 51.51961000000000012732925824820995330810546875,
        "lon": 1.7544633000000000588869397688540630042552947998046875
    },
    "last_point": {
        "ts": "2026-07-15T10:03:48+00:00",
        "lat": 51.51510329999999981964720063842833042144775390625,
        "lon": 1.75184329999999999216697688098065555095672607421875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 02:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 2h 30m
Data Points: 12 AIS positions
Period: 2026-07-15T02:03:37+00:00 to 2026-07-15T04:33:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 150,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-07-15T02:03:37+00:00",
        "lat": 51.51966999999999785586624057032167911529541015625,
        "lon": 1.755118299999999909033476797048933804035186767578125
    },
    "last_point": {
        "ts": "2026-07-15T04:33:39+00:00",
        "lat": 51.51915670000000346817614627070724964141845703125,
        "lon": 1.752709999999999990194510246510617434978485107421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 02:03 UTC 75.0% ▼

Duration: 2h 30m
Radius: 143 meters
Data Points: 12 AIS positions
Centroid: 51.5196, 1.7547
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 143.400000000000005684341886080801486968994140625,
    "duration_minutes": 150,
    "points": 12,
    "centroid": {
        "lat": 51.519552774999993971505318768322467803955078125,
        "lon": 1.7546766666666666623086712206713855266571044921875
    },
    "bbox": {
        "min_lat": 51.51915670000000346817614627070724964141845703125,
        "min_lon": 1.752709999999999990194510246510617434978485107421875,
        "max_lat": 51.51966999999999785586624057032167911529541015625,
        "max_lon": 1.7551300000000000789412979429471306502819061279296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 01:09 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 3h 24m
Data Points: 16 AIS positions
Period: 2026-07-15T01:09:39+00:00 to 2026-07-15T04:33:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 204,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-07-15T01:09:39+00:00",
        "lat": 51.519751700000000482759787701070308685302734375,
        "lon": 1.75355170000000004648654794436879456043243408203125
    },
    "last_point": {
        "ts": "2026-07-15T04:33:39+00:00",
        "lat": 51.51915670000000346817614627070724964141845703125,
        "lon": 1.752709999999999990194510246510617434978485107421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 01:09 UTC 75.0% ▼

Duration: 3h 24m
Radius: 138 meters
Data Points: 16 AIS positions
Centroid: 51.5196, 1.7546
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 138.30000000000001136868377216160297393798828125,
    "duration_minutes": 204,
    "points": 16,
    "centroid": {
        "lat": 51.51959541250000285117494058795273303985595703125,
        "lon": 1.754574793750000250014409175491891801357269287109375
    },
    "bbox": {
        "min_lat": 51.51915670000000346817614627070724964141845703125,
        "min_lon": 1.752709999999999990194510246510617434978485107421875,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.7551300000000000789412979429471306502819061279296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 15, 2026 00:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 4h 33m
Data Points: 21 AIS positions
Period: 2026-07-15T00:00:39+00:00 to 2026-07-15T04:33:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 273,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-15T00:00:39+00:00",
        "lat": 51.5168450000000035515768104232847690582275390625,
        "lon": 1.74869830000000003877858034684322774410247802734375
    },
    "last_point": {
        "ts": "2026-07-15T04:33:39+00:00",
        "lat": 51.51915670000000346817614627070724964141845703125,
        "lon": 1.752709999999999990194510246510617434978485107421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 15, 2026 00:00 UTC 75.0% ▼

Duration: 4h 33m
Radius: 425 meters
Data Points: 21 AIS positions
Centroid: 51.5192, 1.7535
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 424.8999999999999772626324556767940521240234375,
    "duration_minutes": 273,
    "points": 21,
    "centroid": {
        "lat": 51.51920404761904137558303773403167724609375,
        "lon": 1.75351301904761935901433389517478644847869873046875
    },
    "bbox": {
        "min_lat": 51.5168450000000035515768104232847690582275390625,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.7551300000000000789412979429471306502819061279296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 23:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 5h 33m
Data Points: 26 AIS positions
Period: 2026-07-14T23:00:39+00:00 to 2026-07-15T04:33:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 333,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-07-14T23:00:39+00:00",
        "lat": 51.515749999999997044142219237983226776123046875,
        "lon": 1.7495567000000000756898543841089121997356414794921875
    },
    "last_point": {
        "ts": "2026-07-15T04:33:39+00:00",
        "lat": 51.51915670000000346817614627070724964141845703125,
        "lon": 1.752709999999999990194510246510617434978485107421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 23:00 UTC 75.0% ▼

Duration: 5h 33m
Radius: 387 meters
Data Points: 26 AIS positions
Centroid: 51.5186, 1.7527
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 387,
    "duration_minutes": 333,
    "points": 26,
    "centroid": {
        "lat": 51.518637115384620983604690991342067718505859375,
        "lon": 1.752665449999999847108256290084682404994964599609375
    },
    "bbox": {
        "min_lat": 51.515749999999997044142219237983226776123046875,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.7551300000000000789412979429471306502819061279296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 22:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 30m
Data Points: 28 AIS positions
Period: 2026-07-14T22:03:38+00:00 to 2026-07-15T04:33:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-07-14T22:03:38+00:00",
        "lat": 51.51536329999999708206814830191433429718017578125,
        "lon": 1.7504999999999999449329379785922355949878692626953125
    },
    "last_point": {
        "ts": "2026-07-15T04:33:39+00:00",
        "lat": 51.51915670000000346817614627070724964141845703125,
        "lon": 1.752709999999999990194510246510617434978485107421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 22:03 UTC 75.0% ▼

Duration: 6h 30m
Radius: 366 meters
Data Points: 28 AIS positions
Centroid: 51.5184, 1.7525
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 366,
    "duration_minutes": 390,
    "points": 28,
    "centroid": {
        "lat": 51.518402735714289519819431006908416748046875,
        "lon": 1.752516428571428530602815953898243606090545654296875
    },
    "bbox": {
        "min_lat": 51.515348299999999426290742121636867523193359375,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.7551300000000000789412979429471306502819061279296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 21:36 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 12m
Data Points: 27 AIS positions
Period: 2026-07-14T21:36:38+00:00 to 2026-07-15T03:48:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 372,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-07-14T21:36:38+00:00",
        "lat": 51.51532499999999714646037318743765354156494140625,
        "lon": 1.7504432999999999243101456158910878002643585205078125
    },
    "last_point": {
        "ts": "2026-07-15T03:48:38+00:00",
        "lat": 51.51961000000000012732925824820995330810546875,
        "lon": 1.7544633000000000588869397688540630042552947998046875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 21:36 UTC 75.0% ▼

Duration: 6h 12m
Radius: 349 meters
Data Points: 27 AIS positions
Centroid: 51.5182, 1.7524
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 348.8999999999999772626324556767940521240234375,
    "duration_minutes": 372,
    "points": 27,
    "centroid": {
        "lat": 51.51821863703704451609155512414872646331787109375,
        "lon": 1.7523807999999994056139485110179521143436431884765625
    },
    "bbox": {
        "min_lat": 51.51532499999999714646037318743765354156494140625,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.7551300000000000789412979429471306502819061279296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 19:12 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 27m
Data Points: 19 AIS positions
Period: 2026-07-14T19:36:37+00:00 to 2026-07-15T02:03:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-14T19:36:37+00:00",
        "lat": 51.515680000000003246896085329353809356689453125,
        "lon": 1.7506516999999999217862978184712119400501251220703125
    },
    "last_point": {
        "ts": "2026-07-15T02:03:37+00:00",
        "lat": 51.51966999999999785586624057032167911529541015625,
        "lon": 1.755118299999999909033476797048933804035186767578125
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 19:12 UTC 75.0% ▼

Duration: 6h 27m
Radius: 374 meters
Data Points: 19 AIS positions
Centroid: 51.5174, 1.7511
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 374.3999999999999772626324556767940521240234375,
    "duration_minutes": 387,
    "points": 19,
    "centroid": {
        "lat": 51.51743780526316385248719598166644573211669921875,
        "lon": 1.7510817526315791692326229167520068585872650146484375
    },
    "bbox": {
        "min_lat": 51.51532499999999714646037318743765354156494140625,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.755118299999999909033476797048933804035186767578125
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 18:06 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 30m
Data Points: 21 AIS positions
Period: 2026-07-14T18:51:37+00:00 to 2026-07-15T01:21:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-14T18:51:37+00:00",
        "lat": 51.515631700000000137151801027357578277587890625,
        "lon": 1.7507932999999999967855046634213067591190338134765625
    },
    "last_point": {
        "ts": "2026-07-15T01:21:38+00:00",
        "lat": 51.51968000000000103000274975784122943878173828125,
        "lon": 1.7546117000000001073800603990093804895877838134765625
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 18:06 UTC 75.0% ▼

Duration: 6h 30m
Radius: 416 meters
Data Points: 21 AIS positions
Centroid: 51.5169, 1.7506
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 416.1000000000000227373675443232059478759765625,
    "duration_minutes": 390,
    "points": 21,
    "centroid": {
        "lat": 51.516888414285716635276912711560726165771484375,
        "lon": 1.7506216666666667425289460879866965115070343017578125
    },
    "bbox": {
        "min_lat": 51.51532499999999714646037318743765354156494140625,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.51986329999999725259840488433837890625,
        "max_lon": 1.7546117000000001073800603990093804895877838134765625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 17:06 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 24m
Data Points: 20 AIS positions
Period: 2026-07-14T17:48:38+00:00 to 2026-07-15T00:12:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-07-14T17:48:38+00:00",
        "lat": 51.51560500000000075715433922596275806427001953125,
        "lon": 1.7510882999999999309892473320360295474529266357421875
    },
    "last_point": {
        "ts": "2026-07-15T00:12:39+00:00",
        "lat": 51.5172017000000010966687113977968692779541015625,
        "lon": 1.7486467000000001092985257855616509914398193359375
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 17:06 UTC 75.0% ▼

Duration: 6h 24m
Radius: 179 meters
Data Points: 20 AIS positions
Centroid: 51.5159, 1.7501
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 179,
    "duration_minutes": 384,
    "points": 20,
    "centroid": {
        "lat": 51.51588550000000310546965920366346836090087890625,
        "lon": 1.750128660000000113683427116484381258487701416015625
    },
    "bbox": {
        "min_lat": 51.51532499999999714646037318743765354156494140625,
        "min_lon": 1.7486467000000001092985257855616509914398193359375,
        "max_lat": 51.5172017000000010966687113977968692779541015625,
        "max_lon": 1.7510882999999999309892473320360295474529266357421875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 16:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 27m
Data Points: 19 AIS positions
Period: 2026-07-14T16:33:38+00:00 to 2026-07-14T23:00:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-14T16:33:38+00:00",
        "lat": 51.518581699999998591010808013379573822021484375,
        "lon": 1.7537382999999999722007260061218403279781341552734375
    },
    "last_point": {
        "ts": "2026-07-14T23:00:39+00:00",
        "lat": 51.515749999999997044142219237983226776123046875,
        "lon": 1.7495567000000000756898543841089121997356414794921875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 16:03 UTC 75.0% ▼

Duration: 6h 27m
Radius: 372 meters
Data Points: 19 AIS positions
Centroid: 51.5157, 1.7509
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 371.5,
    "duration_minutes": 387,
    "points": 19,
    "centroid": {
        "lat": 51.5157437736842069853082648478448390960693359375,
        "lon": 1.7509174473684210315838072347105480730533599853515625
    },
    "bbox": {
        "min_lat": 51.51532499999999714646037318743765354156494140625,
        "min_lon": 1.7495567000000000756898543841089121997356414794921875,
        "max_lat": 51.518581699999998591010808013379573822021484375,
        "max_lon": 1.7537382999999999722007260061218403279781341552734375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 15:12 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 39m
Data Points: 23 AIS positions
Period: 2026-07-14T15:30:37+00:00 to 2026-07-14T22:09:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 399,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-14T15:30:37+00:00",
        "lat": 51.52033000000000129148247651755809783935546875,
        "lon": 1.753814999999999901802993917954154312610626220703125
    },
    "last_point": {
        "ts": "2026-07-14T22:09:37+00:00",
        "lat": 51.515348299999999426290742121636867523193359375,
        "lon": 1.750658300000000000551381162949837744235992431640625
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 15:12 UTC 75.0% ▼

Duration: 6h 39m
Radius: 434 meters
Data Points: 23 AIS positions
Centroid: 51.5167, 1.7517
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 434.19999999999998863131622783839702606201171875,
    "duration_minutes": 399,
    "points": 23,
    "centroid": {
        "lat": 51.51666630000000424161044065840542316436767578125,
        "lon": 1.7516615130434785019275523154647089540958404541015625
    },
    "bbox": {
        "min_lat": 51.51532499999999714646037318743765354156494140625,
        "min_lon": 1.7504432999999999243101456158910878002643585205078125,
        "max_lat": 51.52033000000000129148247651755809783935546875,
        "max_lon": 1.754343299999999938876271698973141610622406005859375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 14:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 5h 33m
Data Points: 22 AIS positions
Period: 2026-07-14T14:03:37+00:00 to 2026-07-14T19:36:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 333,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-14T14:03:37+00:00",
        "lat": 51.52061830000000242080204770900309085845947265625,
        "lon": 1.7536199999999999565858388450578786432743072509765625
    },
    "last_point": {
        "ts": "2026-07-14T19:36:37+00:00",
        "lat": 51.515680000000003246896085329353809356689453125,
        "lon": 1.7506516999999999217862978184712119400501251220703125
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 14:03 UTC 75.0% ▼

Duration: 5h 33m
Radius: 397 meters
Data Points: 22 AIS positions
Centroid: 51.5172, 1.7520
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 396.69999999999998863131622783839702606201171875,
    "duration_minutes": 333,
    "points": 22,
    "centroid": {
        "lat": 51.5171987863636360316377249546349048614501953125,
        "lon": 1.7519999181818184386116854511783458292484283447265625
    },
    "bbox": {
        "min_lat": 51.515579999999999927240423858165740966796875,
        "min_lon": 1.75059670000000000555928636458702385425567626953125,
        "max_lat": 51.52061830000000242080204770900309085845947265625,
        "max_lon": 1.754343299999999938876271698973141610622406005859375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 13:51 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 5h 45m
Data Points: 23 AIS positions
Period: 2026-07-14T13:51:39+00:00 to 2026-07-14T19:36:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 345,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-14T13:51:39+00:00",
        "lat": 51.5205883000000000038198777474462985992431640625,
        "lon": 1.753516700000000039239012039615772664546966552734375
    },
    "last_point": {
        "ts": "2026-07-14T19:36:37+00:00",
        "lat": 51.515680000000003246896085329353809356689453125,
        "lon": 1.7506516999999999217862978184712119400501251220703125
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 13:51 UTC 75.0% ▼

Duration: 5h 45m
Radius: 380 meters
Data Points: 23 AIS positions
Centroid: 51.5173, 1.7521
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 379.69999999999998863131622783839702606201171875,
    "duration_minutes": 345,
    "points": 23,
    "centroid": {
        "lat": 51.51734615652174653632755507715046405792236328125,
        "lon": 1.752065865217391493757759235450066626071929931640625
    },
    "bbox": {
        "min_lat": 51.515579999999999927240423858165740966796875,
        "min_lon": 1.75059670000000000555928636458702385425567626953125,
        "max_lat": 51.52061830000000242080204770900309085845947265625,
        "max_lon": 1.754343299999999938876271698973141610622406005859375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 12:39 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 24m
Data Points: 24 AIS positions
Period: 2026-07-14T12:51:38+00:00 to 2026-07-14T19:15:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-14T12:51:38+00:00",
        "lat": 51.5179167000000006737536750733852386474609375,
        "lon": 1.7550383000000000510709696754929609596729278564453125
    },
    "last_point": {
        "ts": "2026-07-14T19:15:38+00:00",
        "lat": 51.515670000000000072759576141834259033203125,
        "lon": 1.75059670000000000555928636458702385425567626953125
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 12:39 UTC 75.0% ▼

Duration: 6h 24m
Radius: 358 meters
Data Points: 24 AIS positions
Centroid: 51.5175, 1.7524
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 358,
    "duration_minutes": 384,
    "points": 24,
    "centroid": {
        "lat": 51.51749729166667890467579127289354801177978515625,
        "lon": 1.7523638833333332609498711462947539985179901123046875
    },
    "bbox": {
        "min_lat": 51.515579999999999927240423858165740966796875,
        "min_lon": 1.75059670000000000555928636458702385425567626953125,
        "max_lat": 51.52061830000000242080204770900309085845947265625,
        "max_lon": 1.7550383000000000510709696754929609596729278564453125
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 02:12 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 1h 33m
Data Points: 5 AIS positions
Period: 2026-07-14T02:12:40+00:00 to 2026-07-14T03:45:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 93,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-07-14T02:12:40+00:00",
        "lat": 51.51941500000000218051354750059545040130615234375,
        "lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "last_point": {
        "ts": "2026-07-14T03:45:39+00:00",
        "lat": 51.517740000000003419700078666210174560546875,
        "lon": 1.7519517000000000006565414878423325717449188232421875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 01:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 2h 45m
Data Points: 6 AIS positions
Period: 2026-07-14T01:00:38+00:00 to 2026-07-14T03:45:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 165,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-07-14T01:00:38+00:00",
        "lat": 51.51988999999999663259586668573319911956787109375,
        "lon": 1.755198299999999989040588843636214733123779296875
    },
    "last_point": {
        "ts": "2026-07-14T03:45:39+00:00",
        "lat": 51.517740000000003419700078666210174560546875,
        "lon": 1.7519517000000000006565414878423325717449188232421875
    }
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 14, 2026 00:06 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 3h 39m
Data Points: 13 AIS positions
Period: 2026-07-14T00:06:38+00:00 to 2026-07-14T03:45:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 219,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-14T00:06:38+00:00",
        "lat": 51.51738830000000035624907468445599079132080078125,
        "lon": 1.7498217000000000354020812665112316608428955078125
    },
    "last_point": {
        "ts": "2026-07-14T03:45:39+00:00",
        "lat": 51.517740000000003419700078666210174560546875,
        "lon": 1.7519517000000000006565414878423325717449188232421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 14, 2026 00:06 UTC 75.0% ▼

Duration: 3h 39m
Radius: 265 meters
Data Points: 13 AIS positions
Centroid: 51.5189, 1.7528
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 264.69999999999998863131622783839702606201171875,
    "duration_minutes": 219,
    "points": 13,
    "centroid": {
        "lat": 51.518888584615382342235534451901912689208984375,
        "lon": 1.7527816769230770699294907899457029998302459716796875
    },
    "bbox": {
        "min_lat": 51.51738830000000035624907468445599079132080078125,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 23:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 4h 45m
Data Points: 18 AIS positions
Period: 2026-07-13T23:00:38+00:00 to 2026-07-14T03:45:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 285,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-07-13T23:00:38+00:00",
        "lat": 51.5158083000000033280230127274990081787109375,
        "lon": 1.7506633000000000333074012814904563128948211669921875
    },
    "last_point": {
        "ts": "2026-07-14T03:45:39+00:00",
        "lat": 51.517740000000003419700078666210174560546875,
        "lon": 1.7519517000000000006565414878423325717449188232421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 23:00 UTC 75.0% ▼

Duration: 4h 45m
Radius: 291 meters
Data Points: 18 AIS positions
Centroid: 51.5181, 1.7521
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 291.19999999999998863131622783839702606201171875,
    "duration_minutes": 285,
    "points": 18,
    "centroid": {
        "lat": 51.51811822777778360205047647468745708465576171875,
        "lon": 1.752110194444444601913346559740602970123291015625
    },
    "bbox": {
        "min_lat": 51.5158083000000033280230127274990081787109375,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 22:14 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 5h 31m
Data Points: 24 AIS positions
Period: 2026-07-13T22:14:40+00:00 to 2026-07-14T03:45:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 331,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-13T22:14:40+00:00",
        "lat": 51.51553499999999985448084771633148193359375,
        "lon": 1.75132669999999990295691532082855701446533203125
    },
    "last_point": {
        "ts": "2026-07-14T03:45:39+00:00",
        "lat": 51.517740000000003419700078666210174560546875,
        "lon": 1.7519517000000000006565414878423325717449188232421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 22:14 UTC 75.0% ▼

Duration: 5h 31m
Radius: 354 meters
Data Points: 24 AIS positions
Centroid: 51.5175, 1.7518
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 354.3999999999999772626324556767940521240234375,
    "duration_minutes": 331,
    "points": 24,
    "centroid": {
        "lat": 51.51752998750000500649548484943807125091552734375,
        "lon": 1.7517696624999998800120692976634018123149871826171875
    },
    "bbox": {
        "min_lat": 51.51553499999999985448084771633148193359375,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 21:09 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 33m
Data Points: 31 AIS positions
Period: 2026-07-13T21:12:38+00:00 to 2026-07-14T03:45:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-07-13T21:12:38+00:00",
        "lat": 51.51563329999999751862560515291988849639892578125,
        "lon": 1.7512567000000001105064484363538213074207305908203125
    },
    "last_point": {
        "ts": "2026-07-14T03:45:39+00:00",
        "lat": 51.517740000000003419700078666210174560546875,
        "lon": 1.7519517000000000006565414878423325717449188232421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 21:09 UTC 75.0% ▼

Duration: 6h 33m
Radius: 398 meters
Data Points: 31 AIS positions
Centroid: 51.5171, 1.7516
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 397.8999999999999772626324556767940521240234375,
    "duration_minutes": 393,
    "points": 31,
    "centroid": {
        "lat": 51.517106170967736034072004258632659912109375,
        "lon": 1.7516004935483870941226314243976958096027374267578125
    },
    "bbox": {
        "min_lat": 51.51553499999999985448084771633148193359375,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 20:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 36m
Data Points: 34 AIS positions
Period: 2026-07-13T20:00:37+00:00 to 2026-07-14T02:36:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-07-13T20:00:37+00:00",
        "lat": 51.51551500000000061163518694229423999786376953125,
        "lon": 1.7516282999999999159257413339219056069850921630859375
    },
    "last_point": {
        "ts": "2026-07-14T02:36:37+00:00",
        "lat": 51.5195317000000017060301615856587886810302734375,
        "lon": 1.755570000000000074891204349114559590816497802734375
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 20:00 UTC 75.0% ▼

Duration: 6h 36m
Radius: 439 meters
Data Points: 34 AIS positions
Centroid: 51.5167, 1.7515
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 438.5,
    "duration_minutes": 396,
    "points": 34,
    "centroid": {
        "lat": 51.51670602058823789093366940505802631378173828125,
        "lon": 1.751475985294117077017972405883483588695526123046875
    },
    "bbox": {
        "min_lat": 51.5154849999999981946530169807374477386474609375,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 19:18 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 27m
Data Points: 36 AIS positions
Period: 2026-07-13T19:45:37+00:00 to 2026-07-14T02:12:40+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-07-13T19:45:37+00:00",
        "lat": 51.51551169999999757465047878213226795196533203125,
        "lon": 1.7517267000000000809478706287336535751819610595703125
    },
    "last_point": {
        "ts": "2026-07-14T02:12:40+00:00",
        "lat": 51.51941500000000218051354750059545040130615234375,
        "lon": 1.7556366999999999389814320238656364381313323974609375
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 19:18 UTC 75.0% ▼

Duration: 6h 27m
Radius: 459 meters
Data Points: 36 AIS positions
Centroid: 51.5165, 1.7514
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 458.80000000000001136868377216160297393798828125,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 36,
    "centroid": {
        "lat": 51.51652633333333852760915760882198810577392578125,
        "lon": 1.7513739416666662673804921723785810172557830810546875
    },
    "bbox": {
        "min_lat": 51.51545329999999722758730058558285236358642578125,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.7556366999999999389814320238656364381313323974609375
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 18:03 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 30m
Data Points: 42 AIS positions
Period: 2026-07-13T18:30:38+00:00 to 2026-07-14T01:00:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-07-13T18:30:38+00:00",
        "lat": 51.5155400000000014415491023100912570953369140625,
        "lon": 1.75141670000000004847606760449707508087158203125
    },
    "last_point": {
        "ts": "2026-07-14T01:00:38+00:00",
        "lat": 51.51988999999999663259586668573319911956787109375,
        "lon": 1.755198299999999989040588843636214733123779296875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 18:03 UTC 75.0% ▼

Duration: 6h 30m
Radius: 483 meters
Data Points: 42 AIS positions
Centroid: 51.5163, 1.7513
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 483.19999999999998863131622783839702606201171875,
    "duration_minutes": 390,
    "points": 42,
    "centroid": {
        "lat": 51.5162869761904715915079577825963497161865234375,
        "lon": 1.7513125833333329506302789013716392219066619873046875
    },
    "bbox": {
        "min_lat": 51.5154483000000027459464035928249359130859375,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.52002999999999843794284970499575138092041015625,
        "max_lon": 1.755198299999999989040588843636214733123779296875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 17:18 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 30m
Data Points: 45 AIS positions
Period: 2026-07-13T17:48:38+00:00 to 2026-07-14T00:18:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-07-13T17:48:38+00:00",
        "lat": 51.515569999999996753103914670646190643310546875,
        "lon": 1.751090000000000035385028240852989256381988525390625
    },
    "last_point": {
        "ts": "2026-07-14T00:18:38+00:00",
        "lat": 51.5182132999999993216988514177501201629638671875,
        "lon": 1.750785000000000035669245335157029330730438232421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 17:18 UTC 75.0% ▼

Duration: 6h 30m
Radius: 263 meters
Data Points: 45 AIS positions
Centroid: 51.5159, 1.7511
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 262.8999999999999772626324556767940521240234375,
    "duration_minutes": 390,
    "points": 45,
    "centroid": {
        "lat": 51.515856771111117495820508338510990142822265625,
        "lon": 1.751071151111111223741545472876168787479400634765625
    },
    "bbox": {
        "min_lat": 51.5154483000000027459464035928249359130859375,
        "min_lon": 1.7498217000000000354020812665112316608428955078125,
        "max_lat": 51.5182132999999993216988514177501201629638671875,
        "max_lon": 1.7518282999999998938989165253587998449802398681640625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 16:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 21m
Data Points: 43 AIS positions
Period: 2026-07-13T16:57:38+00:00 to 2026-07-13T23:18:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-07-13T16:57:38+00:00",
        "lat": 51.515618299999999862848198972642421722412109375,
        "lon": 1.751031699999999968753172652213834226131439208984375
    },
    "last_point": {
        "ts": "2026-07-13T23:18:39+00:00",
        "lat": 51.51591330000000112931957119144499301910400390625,
        "lon": 1.750588299999999986056309353443793952465057373046875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 16:00 UTC 75.0% ▼

Duration: 6h 21m
Radius: 79 meters
Data Points: 43 AIS positions
Centroid: 51.5156, 1.7512
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 78.5,
    "duration_minutes": 381,
    "points": 43,
    "centroid": {
        "lat": 51.51560495813954076993468333967030048370361328125,
        "lon": 1.7512140697674423162055745706311427056789398193359375
    },
    "bbox": {
        "min_lat": 51.5154483000000027459464035928249359130859375,
        "min_lon": 1.7502400000000000179767312147305347025394439697265625,
        "max_lat": 51.51596330000000278914740192703902721405029296875,
        "max_lon": 1.7518282999999998938989165253587998449802398681640625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 15:09 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 33m
Data Points: 37 AIS positions
Period: 2026-07-13T15:21:38+00:00 to 2026-07-13T21:54:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-07-13T15:21:38+00:00",
        "lat": 51.51600169999999678793756174854934215545654296875,
        "lon": 1.7500199999999999089794755491311661899089813232421875
    },
    "last_point": {
        "ts": "2026-07-13T21:54:38+00:00",
        "lat": 51.51569330000000235258994507603347301483154296875,
        "lon": 1.75087670000000006353957360261119902133941650390625
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 15:09 UTC 75.0% ▼

Duration: 6h 33m
Radius: 98 meters
Data Points: 37 AIS positions
Centroid: 51.5156, 1.7513
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 98.400000000000005684341886080801486968994140625,
    "duration_minutes": 393,
    "points": 37,
    "centroid": {
        "lat": 51.5155823891891913035578909330070018768310546875,
        "lon": 1.7512687837837843662924797172308899462223052978515625
    },
    "bbox": {
        "min_lat": 51.5154483000000027459464035928249359130859375,
        "min_lon": 1.7500199999999999089794755491311661899089813232421875,
        "max_lat": 51.51600169999999678793756174854934215545654296875,
        "max_lon": 1.7518282999999998938989165253587998449802398681640625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 14:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 33m
Data Points: 37 AIS positions
Period: 2026-07-13T14:51:38+00:00 to 2026-07-13T21:24:37+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-07-13T14:51:38+00:00",
        "lat": 51.51854329999999748679329059086740016937255859375,
        "lon": 1.7522667000000000658843646306195296347141265869140625
    },
    "last_point": {
        "ts": "2026-07-13T21:24:37+00:00",
        "lat": 51.51569169999999786568878334946930408477783203125,
        "lon": 1.750778299999999898517444307799451053142547607421875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 14:00 UTC 75.0% ▼

Duration: 6h 33m
Radius: 319 meters
Data Points: 37 AIS positions
Centroid: 51.5157, 1.7513
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 319.19999999999998863131622783839702606201171875,
    "duration_minutes": 393,
    "points": 37,
    "centroid": {
        "lat": 51.51574072162161854748774203471839427947998046875,
        "lon": 1.751279594594594701817413806566037237644195556640625
    },
    "bbox": {
        "min_lat": 51.5154483000000027459464035928249359130859375,
        "min_lon": 1.7500199999999999089794755491311661899089813232421875,
        "max_lat": 51.51854329999999748679329059086740016937255859375,
        "max_lon": 1.7522667000000000658843646306195296347141265869140625
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Zone Dwell English Channel Surveillance Zone

Jul 13, 2026 13:00 UTC 80.0% ▼

Zone: English Channel Surveillance Zone
Duration: 6h 24m
Data Points: 39 AIS positions
Period: 2026-07-13T13:51:37+00:00 to 2026-07-13T20:15:38+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_004",
    "zone_name": "English Channel Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-07-13T13:51:37+00:00",
        "lat": 51.5197399999999987585397320799529552459716796875,
        "lon": 1.7542066999999998966330849725636653602123260498046875
    },
    "last_point": {
        "ts": "2026-07-13T20:15:38+00:00",
        "lat": 51.515586700000000064392224885523319244384765625,
        "lon": 1.7513867000000000739845518182846717536449432373046875
    }
}

Methodology: 2026.01.18

Loiter English Channel Surveillance Zone

Jul 13, 2026 13:00 UTC 75.0% ▼

Duration: 6h 24m
Radius: 395 meters
Data Points: 39 AIS positions
Centroid: 51.5165, 1.7517
Zone: English Channel Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 394.80000000000001136868377216160297393798828125,
    "duration_minutes": 384,
    "points": 39,
    "centroid": {
        "lat": 51.51654230769229769748562830500304698944091796875,
        "lon": 1.751739830769230454876606017933227121829986572265625
    },
    "bbox": {
        "min_lat": 51.5154483000000027459464035928249359130859375,
        "min_lon": 1.7500199999999999089794755491311661899089813232421875,
        "max_lat": 51.5198017000000021425876184366643428802490234375,
        "max_lon": 1.7542066999999998966330849725636653602123260498046875
    },
    "zone_id": "discovered_004"
}

Methodology: 2026.01.18

Recent Position Data

Time (UTC)	Lat	Lon	Speed	Course	Zone
Jul 19 17:23	36.0582	-7.0764	13.8 kn	102.3°	Eastern Mediterranean Monitoring Zone
Jul 19 17:21	36.0595	-7.0833	13.8 kn	103.0°	Eastern Mediterranean Monitoring Zone
Jul 19 17:14	36.0659	-7.1173	13.8 kn	103.0°	Eastern Mediterranean Monitoring Zone
Jul 19 17:08	36.0710	-7.1439	13.9 kn	103.2°	Eastern Mediterranean Monitoring Zone
Jul 19 17:06	36.0730	-7.1546	13.9 kn	103.2°	Eastern Mediterranean Monitoring Zone
Jul 19 17:04	36.0752	-7.1658	14.0 kn	104.3°	Eastern Mediterranean Monitoring Zone
Jul 19 16:47	36.0912	-7.2438	14.1 kn	105.3°	Eastern Mediterranean Monitoring Zone
Jul 19 15:55	36.1411	-7.4835	13.7 kn	104.7°	Western Mediterranean Surveillance Zone
Jul 19 15:44	36.1518	-7.5329	13.8 kn	104.7°	Western Mediterranean Surveillance Zone
Jul 19 15:37	36.1592	-7.5685	13.9 kn	103.8°	Western Mediterranean Surveillance Zone
Jul 19 15:17	36.1770	-7.6609	14.0 kn	102.7°	Western Mediterranean Surveillance Zone
Jul 19 15:16	36.1779	-7.6656	14.1 kn	102.9°	Western Mediterranean Surveillance Zone
Jul 19 15:10	36.1833	-7.6957	14.0 kn	102.1°	Western Mediterranean Surveillance Zone
Jul 19 13:31	36.2680	-8.1572	13.6 kn	104.2°	Western Mediterranean Surveillance Zone
Jul 19 12:56	36.3005	-8.3192	13.6 kn	104.7°	Western Mediterranean Surveillance Zone
Jul 19 12:46	36.3090	-8.3617	13.6 kn	102.6°	Western Mediterranean Surveillance Zone
Jul 19 12:37	36.3162	-8.4031	13.6 kn	101.7°	Western Mediterranean Surveillance Zone
Jul 19 12:35	36.3177	-8.4123	13.6 kn	101.8°	Western Mediterranean Surveillance Zone
Jul 19 12:32	36.3204	-8.4277	13.7 kn	102.0°	Western Mediterranean Surveillance Zone
Jul 19 12:02	36.3487	-8.5643	13.8 kn	103.0°	Western Mediterranean Surveillance Zone

Showing 20 of 100 recent positions.

Data Source

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

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

Speed 13.80 kn

Course 102.30°

Zone Eastern Mediterranean Monitoring Zone

Last Position 2 days ago

ALEXANDER

IMO 9826720

Vessel information

Detected Events (100)

Confidence Analysis

Confidence Analysis

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

Recent Position Data

Data Source

Support FleetLeaks

Thank you!

Something went wrong