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.
Cargo
TENSYUN
Cargo · Japan · last seen 33°N 133°E · Jun 2026 · MMSI 431028339 · Call sign JD5576
Not yet on Master's MateType
Cargo
Flag
JPNLength
68 m
Beam
13 m
Draft
5.2 m
Call sign
JD5576
IMO
1105883
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
34
On the Japanese registry, TENSYUN is a 68-metre ocean freighter. Below, she has a beam measuring 13 metres and a draft of 5.2 m. She's on record as MMSI 431028339, call sign JD5576, IMO 1105883. TENSYUN can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for commercial operators
Eyes on TENSYUN, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 16, 2026 02:39 UTC
Position
33.2927° N, 133.5099° E
Status
Under way (engine)
Speed
10.4 kn
Course
99°
Destination
JP FNB IE
ETA
06-18 05:30 UTC
Wherever TENSYUN 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 · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put TENSYUN 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 TENSYUN and switch it all on
Free to join · nothing to install to start · cancel anytime
About TENSYUN
What kind of vessel is TENSYUN?
TENSYUN is a Cargo flagged to Japan.
Where was TENSYUN last seen?
TENSYUN was last reported in around 33°N 133°E in Jun 2026 on public AIS.
What is TENSYUN's MMSI?
TENSYUN's MMSI is 431028339. Call sign JD5576. IMO 1105883.
How big is TENSYUN?
TENSYUN is about 68 m long, 13 m on the beam, drawing 5.2 m.
Is TENSYUN on the Master's Mate Safety Initiative Network?
Not yet. If TENSYUN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.