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
SELENE LEADER
MMSI 431224000 · Call sign 7JUO
Not yet on Master's MateType
Cargo
Flag
JPNLength
199 m
Beam
32 m
Draft
8 m
Call sign
7JUO
IMO
9498597
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
On the Japanese registry, SELENE LEADER is a 199-metre merchant ship. Her hull carries 32 metres in the beam and a draft measuring 8 metres. On AIS she appears as MMSI 431224000, call sign 7JUO, IMO 9498597. Join SELENE LEADER to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on SELENE LEADER, 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 4, 2026
Position
39.5314° N, 75.8246° W
Transiting Chesapeake Bay? 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 SELENE LEADER 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 SELENE LEADER and switch it all on
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About SELENE LEADER
What kind of vessel is SELENE LEADER?
SELENE LEADER is a Cargo flagged to Japan.
Where was SELENE LEADER last seen?
SELENE LEADER was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is SELENE LEADER's MMSI?
SELENE LEADER's MMSI is 431224000. Call sign 7JUO. IMO 9498597.
How big is SELENE LEADER?
SELENE LEADER is about 199 m long, 32 m on the beam, drawing 8 m.
Is SELENE LEADER on the Master's Mate Safety Initiative Network?
Not yet. If SELENE LEADER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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