ZUIUN

Buoy/Lighthouse Vessel · IMO 8221997 · MMSI 431600399 · Last UTC 2023-02-05 09:38 UTC

Average Speed (60D)

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Static vessel map preview

ZUIUN

Buoy/Lighthouse Vessel

Position time: 2023-02-05 09:38 UTC

Flag: jpn

Country: Japan

IMO: 8221997

MMSI: 431600399

GT: 168

Year: 1983

Call sign: 7JWR

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.