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.
Vessel
Astra
MMSI 273435720
Not yet on Master's MateFlag
RUSLength
53 m
IMO
8752439
AIS reports
2
Registered in Russia, Astra is a 53-metre vessel. Officially she's MMSI 273435720, IMO 8752439. Astra belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Is Astra your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Astra roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Astra on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Astra and switch it all on
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About Astra
What kind of vessel is Astra?
Astra is a vessel flagged to Russia.
What is Astra's MMSI?
Astra's MMSI is 273435720. IMO 8752439.
How big is Astra?
Astra is about 53 m long.
Is Astra on the Master's Mate Safety Initiative Network?
Not yet. If Astra is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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