CALVIN 81

Tug · IMO 9647928 · MMSI 525003208 · Last UTC 2026-03-15 14:39 UTC

Average Speed (60D)

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CALVIN 81

Tug

Position time: 2026-03-15 14:39 UTC

Flag: idn

Country: Indonesia

IMO: 9647928

MMSI: 525003208

DWT: 174

GT: 192

Length: 40 m

Width: 18 m

Year: 2011

Call sign: YDA3041

Destination is not available in AIS.

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

Track window: last 58 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.

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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.