Surveys

Survey operations in progress until further notice by M/V oceanic endeavour towing 12 cables in area bound…

South Atlantic Ocean · HYDROLANT 1589/12

What this record establishes

Archived notice · 2012-09-14 08:24Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA VII 172/12 160536Z JUL 12.. Issued 2012-07-16 11:07Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
South Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the South Atlantic Ocean →

issued
2012-07-16 11:07Z
status
Archived notice
authority
NAVAREA VII 172/12 160536Z JUL 12.
NAVAREA
NAVAREA VII · named as the source of this relay
sea
South Atlantic Ocean
position
-10.730, 12.890
vessel
M/V OCEANIC ENDEAVOUR · 15 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN SOUTH ATLANTIC.
ANGOLA.
SURVEY OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V OCEANIC ENDEAVOUR
TOWING 12 CABLES IN AREA BOUND BY
10-30S 012-27E, 10-57S 012-28E,
10-58S 013-20E, 10-30S 013-18E.

Reading this warning

Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.

All warning terms →

Collected reports in this area · survey operations

14 within 180 nm since 2011 · 2 in the last 12 months · 0 listed in force now

11
15
20
25
26

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-02 00:58Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.