Home / Sea and coast / Vessel / 257057520
POLAR 4 Latest known AIS information and track for MMSI 257057520.
Programmatic access to vessel data (JSON)
Source: AIS and vessels . Retrieved 2026-09-21T16:28:17Z.
Vessel and latest position Open the place page for this point
mmsi: 257057520 navn: POLAR 4 kallesignal: not reported by source imo: not reported by source skipstype: 34 lat: 60.33725 lon: 5.23775 fart_knop: 7 kurs: 195.2 destinasjon: not reported by source sist_oppdatert: 2026-09-21T13:37:46+00:00
Track for the past 24 hours 11 results
Open the place page for this point
courseOverGround: 178 latitude: 60.3382 longitude: 5.238017 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 5.4 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T13:37:15+00:00 stream: terra Open the place page for this point
courseOverGround: 142.3 latitude: 60.3442 longitude: 5.234517 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 6.3 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T13:33:42+00:00 stream: terra Open the place page for this point
courseOverGround: 224.4 latitude: 60.344633 longitude: 5.231283 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 0.4 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T13:31:16+00:00 stream: terra Open the place page for this point
courseOverGround: 181.5 latitude: 60.34475 longitude: 5.2314 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 2.2 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T12:07:41+00:00 stream: terra Open the place page for this point
courseOverGround: 308.5 latitude: 60.344517 longitude: 5.235033 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 5.9 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T12:06:12+00:00 stream: terra Open the place page for this point
courseOverGround: 336.3 latitude: 60.3424 longitude: 5.2379 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 6 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T12:04:40+00:00 stream: terra Open the place page for this point
courseOverGround: 184 latitude: 60.338783 longitude: 5.239467 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 6.3 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T10:25:03+00:00 stream: terra Open the place page for this point
courseOverGround: 151.1 latitude: 60.341667 longitude: 5.2383 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 6.4 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T10:23:28+00:00 stream: terra Open the place page for this point
courseOverGround: 148.7 latitude: 60.3437 longitude: 5.236467 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 4.2 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T10:22:02+00:00 stream: terra Open the place page for this point
courseOverGround: 126.2 latitude: 60.345083 longitude: 5.2339 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 4 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T10:20:26+00:00 stream: terra Open the place page for this point
courseOverGround: 70.9 latitude: 60.345183 longitude: 5.231817 name: POLAR 4 rateOfTurn: not reported by source shipType: 34 speedOverGround: 2.9 trueHeading: not reported by source navigationalStatus: 0 mmsi: 257057520 msgtime: 2026-09-21T10:19:24+00:00 stream: terra
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How an AI agent should use this page
Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.
How to use the vessel page
The latest position is a snapshot, not a guarantee of the vessel's current position. Check the retrieval time and the timestamps in the track.
Open the position as a place for weather, ports and nearby objects. Use the track for movement over time; do not infer a destination without explicit data. MMSI is the primary identifier; IMO can be used to confirm vessel identity.
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