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.
Passenger
STERNA
MMSI 230987380 · Call sign OI6508
Not yet on Master's MateType
Passenger
Flag
FINLength
62 m
Beam
12 m
Draft
4.4 m
Call sign
OI6508
IMO
8685753
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
STERNA is a Finnish 62-metre passenger vessel. She's built with a beam measuring 12 metres and a 4.4 m draft. She's listed under MMSI 230987380, call sign OI6508, IMO 8685753. STERNA carries passengers; the free Master's Mate Safety Initiative Network helps carry the watch, with distress alerting and a network nearby.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard STERNA safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 06:31 UTC
Position
60.4405° N, 21.3985° E
Status
Under way (engine)
Speed
4.5 kn
Course
53°
Destination
KANNVIK-HEPONIEMI
Sailing 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put STERNA on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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 STERNA and switch it all on
Free to join · nothing to install to start · cancel anytime
About STERNA
What kind of vessel is STERNA?
STERNA is a Passenger flagged to Finland.
Where was STERNA last seen?
STERNA was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is STERNA's MMSI?
STERNA's MMSI is 230987380. Call sign OI6508. IMO 8685753.
How big is STERNA?
STERNA is about 62 m long, 12 m on the beam, drawing 4.4 m.
Is STERNA on the Master's Mate Safety Initiative Network?
Not yet. If STERNA 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.