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
Himawari No. 7
MMSI 431004228
Not yet on Master's MateFlag
JPNLength
166 m
IMO
9654103
AIS reports
2
On the Japanese registry, Himawari No. 7 is a 166-metre vessel. She's on record as MMSI 431004228, IMO 9654103. Himawari No. 7 can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
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Is Himawari No. 7 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
Live AIS position · Jun 9, 2026 18:31 UTC
Position
35.3961° N, 139.7120° E
Status
Under way (engine)
Speed
20.8 kn
Course
207°
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 Himawari No. 7 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 Himawari No. 7 and switch it all on
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About Himawari No. 7
What kind of vessel is Himawari No. 7?
Himawari No. 7 is a vessel flagged to Japan.
Where was Himawari No. 7 last seen?
Himawari No. 7 was last reported in the Sea of Japan on public AIS.
What is Himawari No. 7's MMSI?
Himawari No. 7's MMSI is 431004228. IMO 9654103.
How big is Himawari No. 7?
Himawari No. 7 is about 166 m long.
Is Himawari No. 7 on the Master's Mate Safety Initiative Network?
Not yet. If Himawari No. 7 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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