SATSUMA

Patrol Vessel · IMO 9191503 · MMSI 431063000 · Last UTC 2026-02-18 08:27 UTC

Average Speed (60D)

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SATSUMA

Patrol Vessel

Position time: 2026-02-18 08:27 UTC

Flag: jpn

Country: Japan

IMO: 9191503

MMSI: 431063000

GT: 1362

Year: 1999

Call sign: JNYL

Destination is not available in AIS.

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

Track window: last 41 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.

Destination candidates are loading.

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.