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.
Towing Vessel
MV SEBASTIAN D
MMSI 367663890 · Call sign WDH9021
Not yet on Master's MateType
Towing Vessel
Flag
USALength
25.5 m
Beam
10.4 m
Draft
3.3 m
Call sign
WDH9021
Official No.
1258790
AIS reports
1
Out of the United States, MV SEBASTIAN D is a 25.5-metre working craft. She has a 10.4-metre beam and a draft of 3.3 m. Her registration reads MMSI 367663890, call sign WDH9021. MV SEBASTIAN D is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
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Built for boats that work — like MV SEBASTIAN D.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Live AIS position · Jun 10, 2026 00:57 UTC
Position
29.9896° N, 93.9087° W
Status
Pushing ahead
Speed
0.2 kn
Course
153°
Destination
US^04TZ>06KW
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Joining the Safety Initiative Network doesn't just put MV SEBASTIAN D on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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About MV SEBASTIAN D
What kind of vessel is MV SEBASTIAN D?
MV SEBASTIAN D is a Towing Vessel flagged to United States of America.
Where was MV SEBASTIAN D last seen?
MV SEBASTIAN D was last reported in the Gulf of Mexico on public AIS.
What is MV SEBASTIAN D's MMSI?
MV SEBASTIAN D's MMSI is 367663890. Call sign WDH9021.
How big is MV SEBASTIAN D?
MV SEBASTIAN D is about 25.5 m long, 10.4 m on the beam, drawing 3.3 m.
Is MV SEBASTIAN D on the Master's Mate Safety Initiative Network?
Not yet. If MV SEBASTIAN D is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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