SEIKAI MARU

General Cargo Ship · IMO 8743361 · MMSI 431000949 · Last UTC 2026-03-09 08:52 UTC

Average Speed (60D)

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SEIKAI MARU

General Cargo Ship

Position time: 2026-03-09 08:52 UTC

Flag: jpn

Country: Japan

IMO: 8743361

MMSI: 431000949

DWT: 1700

GT: 499

Length: 74 m

Width: 12 m

Year: 2009

Call sign: JD2923

Destination is not available in AIS.

AIS refresh is typically every 4–6 hours, sometimes up to 1–2 days.

Track window: last 60 days

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Nearest known locations from geocache labels around the vessel.

Nearby locations are being calculated.

Modeled destinations using route history and peer traffic context.

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Inferred port calls from sparse AIS snapshots.

Port call inference is loading.

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How often is this page updated?

AIS updates are usually every 4–6 hours. In low-coverage areas delays up to 1–2 days are possible.

Why are some vessel fields missing?

Some AIS transponders do not transmit complete static metadata.

How accurate are destinations and port calls?

These are probabilistic model outputs and should be treated as signals, not confirmations.