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
ROSTRUM OPTIMA
MMSI 636093318 · Call sign 5LEI8
Not yet on Master's MateType
Cargo
Flag
LBRLength
180 m
Beam
32 m
Draft
10.9 m
Call sign
5LEI8
IMO
9941635
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
77
On the Liberian registry, ROSTRUM OPTIMA is an 180-metre cargo ship. ROSTRUM OPTIMA has a beam measuring 32 metres and a 10.9 m draft. She broadcasts as MMSI 636093318, call sign 5LEI8, IMO 9941635. Put ROSTRUM OPTIMA 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 ROSTRUM OPTIMA, 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
56.7788° N, 19.1296° E
Transiting the Baltic Sea? 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 ROSTRUM OPTIMA 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 ROSTRUM OPTIMA and switch it all on
Free to join · nothing to install to start · cancel anytime
About ROSTRUM OPTIMA
What kind of vessel is ROSTRUM OPTIMA?
ROSTRUM OPTIMA is a Cargo flagged to Liberia.
Where was ROSTRUM OPTIMA last seen?
ROSTRUM OPTIMA was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is ROSTRUM OPTIMA's MMSI?
ROSTRUM OPTIMA's MMSI is 636093318. Call sign 5LEI8. IMO 9941635.
How big is ROSTRUM OPTIMA?
ROSTRUM OPTIMA is about 180 m long, 32 m on the beam, drawing 10.9 m.
Is ROSTRUM OPTIMA on the Master's Mate Safety Initiative Network?
Not yet. If ROSTRUM OPTIMA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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