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.
Tanker
TENSHO MARU NO.2
Tanker · Japan · last seen 35°N 135°E · Jun 2026 · MMSI 431000826 · Call sign JD2841
Not yet on Master's MateType
Tanker
Flag
JPNLength
74 m
Beam
12 m
Draft
3.3 m
Call sign
JD2841
IMO
9526629
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
11
TENSHO MARU NO.2 is a Japanese tanker, 74 metres in length. She's built with a 12 m beam and a 3.3 m draft. Officially she's MMSI 431000826, call sign JD2841, IMO 9526629. TENSHO MARU NO.2 is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for commercial operators
Eyes on TENSHO MARU NO.2, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Last known position · Jun 15, 2026
Position
34.5120° N, 135.3889° E
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put TENSHO MARU NO.2 on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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 TENSHO MARU NO.2 and switch it all on
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About TENSHO MARU NO.2
What kind of vessel is TENSHO MARU NO.2?
TENSHO MARU NO.2 is a Tanker flagged to Japan.
Where was TENSHO MARU NO.2 last seen?
TENSHO MARU NO.2 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is TENSHO MARU NO.2's MMSI?
TENSHO MARU NO.2's MMSI is 431000826. Call sign JD2841. IMO 9526629.
How big is TENSHO MARU NO.2?
TENSHO MARU NO.2 is about 74 m long, 12 m on the beam, drawing 3.3 m.
Is TENSHO MARU NO.2 on the Master's Mate Safety Initiative Network?
Not yet. If TENSHO MARU NO.2 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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