Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Tug
TB CITRA 73
MMSI 525200045 · Call sign YDA3975
Not yet on Master's MateType
Tug
Flag
IDNLength
24 m
Beam
8 m
Draft
3 m
Call sign
YDA3975
IMO
9853395
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
76
TB CITRA 73, a tugboat under Indonesian registration, measures 24 metres on deck. She's built with a 8-metre beam and a 3 m draft. On the registers she's MMSI 525200045, call sign YDA3975, IMO 9853395. TB CITRA 73 earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.
Free forever · No credit card · for working boats
Built for boats that work — like TB CITRA 73.
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
Last known position · Jun 3, 2026
Position
1.9031° S, 104.9657° E
Wherever TB CITRA 73 roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put TB CITRA 73 on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim TB CITRA 73 and switch it all on
Free to join · nothing to install to start · cancel anytime
About TB CITRA 73
What kind of vessel is TB CITRA 73?
TB CITRA 73 is a Tug flagged to Indonesia.
Where was TB CITRA 73 last seen?
TB CITRA 73 was last reported in around 2°S 105°E in Jun 2026 on public AIS.
What is TB CITRA 73's MMSI?
TB CITRA 73's MMSI is 525200045. Call sign YDA3975. IMO 9853395.
How big is TB CITRA 73?
TB CITRA 73 is about 24 m long, 8 m on the beam, drawing 3 m.
Is TB CITRA 73 on the Master's Mate Safety Initiative Network?
Not yet. If TB CITRA 73 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.