MMSI 278046000 · Call sign S5ER9
Not yet on Master's MateSIRIUS is a Slovenian tug — 29 metres overall. Below, she has a 9-metre beam and a draft measuring 4.2 metres. Officially she's MMSI 278046000, call sign S5ER9, IMO 7612632. Sign SIRIUS up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put SIRIUS on the map. It hands you the full bridge:
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