MMSI 563083840 · Call sign 9V9801
Not yet on Master's MatePSA GEMINI (NN75), a Singaporean tugboat, measures 30 metres on deck. She's built with a 12 m beam and a 4.8 m draft. She's on record as MMSI 563083840, call sign 9V9801, IMO 9998169. PSA GEMINI (NN75) is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
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 PSA GEMINI (NN75) on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.