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Tug
HIROTAMARU
Tug · Japan · last seen 35°N 135°E · Jun 2026 · MMSI 431000385 · Call sign JD2509
Not yet on Master's MateType
Tug
Flag
JPNLength
43 m
Beam
9 m
Draft
3.6 m
Call sign
JD2509
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
24
Out of Japan, HIROTAMARU is a 43-metre tugboat. She carries 9 metres in the beam and a 3.6 m draft. On the registers she's MMSI 431000385, call sign JD2509. HIROTAMARU belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Live AIS position · Jun 15, 2026 13:17 UTC
Position
34.5133° N, 135.4047° E
Status
Under way (engine)
Speed
0.0 kn
Course
280°
Destination
0
ETA
01-01 00:00 UTC
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Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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About HIROTAMARU
What kind of vessel is HIROTAMARU?
HIROTAMARU is a Tug flagged to Japan.
Where was HIROTAMARU last seen?
HIROTAMARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is HIROTAMARU's MMSI?
HIROTAMARU's MMSI is 431000385. Call sign JD2509.
How big is HIROTAMARU?
HIROTAMARU is about 43 m long, 9 m on the beam, drawing 3.6 m.
Is HIROTAMARU on the Master's Mate Safety Initiative Network?
Not yet. If HIROTAMARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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