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

Star Sirius

MMSI 538005469

Not yet on Master's Mate

Flag

MHL

Length

239 m

IMO

9520883

AIS reports

Star Sirius, a craft on the the Marshall Islands registry, measures 239 metres on deck. On the registers she's MMSI 538005469, IMO 9520883. Add Star Sirius to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card

Is Star Sirius 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 Star Sirius 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

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Star Sirius 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 Star Sirius and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Star Sirius

What kind of vessel is Star Sirius?

Star Sirius is a vessel flagged to Marshall Islands.

What is Star Sirius's MMSI?

Star Sirius's MMSI is 538005469. IMO 9520883.

How big is Star Sirius?

Star Sirius is about 239 m long.

Is Star Sirius on the Master's Mate Safety Initiative Network?

Not yet. If Star Sirius is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).