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
TONG YUN
MMSI 370672000
Not yet on Master's MateFlag
PANLength
99 m
IMO
9537599
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
4
TONG YUN, a Panamanian vessel, measures 99 metres on deck. She's on record as MMSI 370672000, IMO 9537599. TONG YUN is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is TONG YUN 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.
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Last known position · Jun 4, 2026
Position
35.1854° N, 129.4351° E
Crossing the Sea of Japan? 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 TONG YUN 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 TONG YUN and switch it all on
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About TONG YUN
What kind of vessel is TONG YUN?
TONG YUN is a vessel flagged to Panama.
Where was TONG YUN last seen?
TONG YUN was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is TONG YUN's MMSI?
TONG YUN's MMSI is 370672000. IMO 9537599.
How big is TONG YUN?
TONG YUN is about 99 m long.
Is TONG YUN on the Master's Mate Safety Initiative Network?
Not yet. If TONG YUN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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