Surveys

Survey operations 02 dec until further notice by M/V jaersk defender along trackline joining 24-50.20N…

Arabian Sea · HYDROPAC 1857/04

What this record establishes

Archived notice · 2004-12-18 14:54Z

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 IX 274/04 011121Z DEC.. Issued 2004-12-01 13:06Z. 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
Arabian Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Arabian Sea →

issued
2004-12-01 13:06Z
status
Archived notice
authority
NAVAREA IX 274/04 011121Z DEC.
NAVAREA
NAVAREA IX · named as the source of this relay
sea
Arabian Sea
position
24.121, 66.768
vessel
M/V JAERSK DEFENDER
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SURVEY OPERATIONS 02 DEC UNTIL FURTHER NOTICE
BY M/V JAERSK DEFENDER ALONG TRACKLINE JOINING
24-50.20N 066-55.10E, 24-50.20N 066-54.10E,
24-44.92N 066-53-99E, 24-44.51N 066-53.90E,
24-26.63N 066-53.69E, 23-24.13N 066-32.54E,
23-23.84N 066-32.44E. WIDE BERTH REQUESTED.

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.
Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.

All warning terms →

Collected reports in this area · survey operations

63 within 180 nm since 2003 · 0 in the last 12 months · 0 listed in force now

03
05
10
15
20
25

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

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-01 19:13Z; 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.