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
GREAT EPSILON
MMSI 563264200 · Call sign 9VDY4
Not yet on Master's MateType
Tanker
Flag
SGPLength
183 m
Beam
32 m
Draft
10.9 m
Call sign
9VDY4
IMO
9873644
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
GREAT EPSILON is a Singaporean tanker, 183 metres in length. She's built with a beam measuring 32 metres and a 10.9 m draft. On AIS she appears as MMSI 563264200, call sign 9VDY4, IMO 9873644. Big or small, every hull benefits from the free Master's Mate Safety Initiative Network — GREAT EPSILON included.
Free forever · No credit card · for commercial operators
Eyes on GREAT EPSILON, 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
51.9630° N, 4.0350° E
Transiting the North 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 GREAT EPSILON 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 GREAT EPSILON and switch it all on
Free to join · nothing to install to start · cancel anytime
About GREAT EPSILON
What kind of vessel is GREAT EPSILON?
GREAT EPSILON is a Tanker flagged to Singapore.
Where was GREAT EPSILON last seen?
GREAT EPSILON was last reported in the North Sea in Jun 2026 on public AIS.
What is GREAT EPSILON's MMSI?
GREAT EPSILON's MMSI is 563264200. Call sign 9VDY4. IMO 9873644.
How big is GREAT EPSILON?
GREAT EPSILON is about 183 m long, 32 m on the beam, drawing 10.9 m.
Is GREAT EPSILON on the Master's Mate Safety Initiative Network?
Not yet. If GREAT EPSILON 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.