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.
Tug
SEBASTIAN D
Tug · United States of America · last seen 30°N 94°W · Jun 2026 · MMSI 367663890 · Call sign WDH9021
Not yet on Master's MateType
Tug
Flag
USALength
24 m
Beam
10 m
Draft
2.9 m
Call sign
WDH9021
Official No.
1258790
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
7
Out of the United States, SEBASTIAN D is a 24-metre harbour tug. She has a 10-metre beam and a draft of 2.9 m. Her registration reads MMSI 367663890, call sign WDH9021. SEBASTIAN D is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for working boats
Built for boats that work — like 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 15, 2026 16:45 UTC
Position
29.9677° N, 93.8601° W
Status
Pushing ahead
Speed
0.0 kn
Course
233°
Destination
US^06P0>0SPN
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Joining the Safety Initiative Network doesn't just put 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 SEBASTIAN D
What kind of vessel is SEBASTIAN D?
SEBASTIAN D is a Tug flagged to United States of America.
Where was SEBASTIAN D last seen?
SEBASTIAN D was last reported in the Gulf of Mexico in Jun 2026 on public AIS.
What is SEBASTIAN D's MMSI?
SEBASTIAN D's MMSI is 367663890. Call sign WDH9021.
How big is SEBASTIAN D?
SEBASTIAN D is about 24 m long, 10 m on the beam, drawing 2.9 m.
Is SEBASTIAN D on the Master's Mate Safety Initiative Network?
Not yet. If SEBASTIAN D is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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