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
JUPITER
MMSI 273265590 · Call sign UAYC7
Not yet on Master's MateType
Tanker
Flag
RUSLength
183 m
Beam
32 m
Draft
8.2 m
Call sign
UAYC7
IMO
9397535
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
59
JUPITER is a tanker wearing Russian colours, 183 metres overall. She carries a beam of 32 m and a 8.2-metre draft. She's listed under MMSI 273265590, call sign UAYC7, IMO 9397535. Put JUPITER on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for commercial operators
Eyes on JUPITER, 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
Last known position · Jun 3, 2026
Position
29.2895° N, 15.3932° W
Transiting the North Atlantic? 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 JUPITER 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 JUPITER and switch it all on
Free to join · nothing to install to start · cancel anytime
About JUPITER
What kind of vessel is JUPITER?
JUPITER is a Tanker flagged to Russia.
Where was JUPITER last seen?
JUPITER was last reported in the North Atlantic in Jun 2026 on public AIS.
What is JUPITER's MMSI?
JUPITER's MMSI is 273265590. Call sign UAYC7. IMO 9397535.
How big is JUPITER?
JUPITER is about 183 m long, 32 m on the beam, drawing 8.2 m.
Is JUPITER on the Master's Mate Safety Initiative Network?
Not yet. If JUPITER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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