merchant vessel · named in official warnings

M/V Marsanne

2 messages · 2026-08-07 to 2026-08-22

status: no warning in force
first mention: 2026-08-07 08:45Z
latest mention: 2026-08-22 11:03Z
reported as: Surveys2
sea: South Atlantic Ocean
last position: -20.404, -40.178

Track · one row per mention

mentions: 2
span: 15 d
in force: 23 d
along track: 1.8 nm
first → last: 1.8 nm

issued	type	where	position	status
2026-08-07	Surveys	South Atlantic · Brazil	-20.39, -40.15	→ 2026-08-28
2026-08-22	Surveys	South Atlantic · Brazil	-20.40, -40.18	→ 2026-08-24

Messages · 2, oldest first

1
Surveys·HYDROLANT 1523/262026-08-07 08:45Z → cancelled 2026-08-28 19:00Z
Underwater operations by motor vessels Marsanne and Comando B in South Atlantic off Brazil at 20-23.57S 040-08.87W, daily Aug 8-22, wide berth requested, canceled Aug 26.
South Atlantic · Brazil · South Atlantic Ocean
```
SOUTH ATLANTIC.
BRAZIL.
1. UNDERWATER OPERATIONS 0800Z TO 1800Z
   DAILY 08 THRU 22 AUG BY M/V MARSANNE
   AND M/V COMANDO B IN
   20-23.57S 040-08.87W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 221900Z AUG 26.
```
2
Surveys·HYDROLANT 1646/262026-08-22 11:03Z → cancelled 2026-08-24 18:45Z
Underwater operations are being conducted daily from 0800Z to 1800Z by vessels Comando B and Marsanne near 20-24.25S 040-10.65W, Brazil, until 06 Sep; wide berth requested.
South Atlantic · Brazil · South Atlantic Ocean
```
SOUTH ATLANTIC.
BRAZIL.
1. UNDERWATER OPERATIONS 0800Z TO 1800Z DAILY
   23 AUG THRU 06 SEP BY M/V COMANDO B AND
   M/V MARSANNE IN 20-24.25S 040-10.65W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 061900Z SEP 26.
```

Not for navigation. The name is read automatically from official navigational warnings; a common name can belong to more than one ship, and a message may describe work the vessel is doing (cable, survey) rather than something that happened to it. Mariners must use official NAVAREA broadcasts and their national MSI service.