Survey operations in progress until 05 dec by M/V antares in area bound by 16-50S 039-00W, 16-50S 035-10W,…
South Atlantic Ocean · HYDROLANT 3004/01
What this record establishes
Archived notice · 2001-12-06 00:00Z
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 V 1740/01 240423Z NOV 01. Issued 2001-11-24 08:50Z. 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.
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2001-11-24 08:50Z
- status
- Archived notice
- authority
- NAVAREA V 1740/01 240423Z NOV 01
- NAVAREA
- NAVAREA V · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -17.506, -37.558
- vessel
- M/V ANTARES · 82 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SURVEY OPERATIONS IN PROGRESS UNTIL 05 DEC BY M/V ANTARES IN AREA BOUND BY 16-50S 039-00W, 16-50S 035-10W, 18-15S 036-40W, 18-15S 039-30W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 06 DEC.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
39 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now
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.
- Survey operations in progress until 210001Z feb by M/V drs ipanema in area bound by 19-27.00S 039-41.00W,…2023-02-04
- Survey operations in progress until 01 aug by M/V drs ipanema in area bound by 19-27.00S 039-41.00W,…2023-02-03
- Survey operations in progress until 27 nov by M/V ramform titan towing 14 10000 meter cables in area bound…2020-11-24
- Underwater operations 1100Z to 2000Z daily 14 thru 25 jun by M/V wyatt candies in 19-32.62S 039-15.90W2018-06-13
- Underwater operations 1100Z to 2100Z daily 05 thru 30 oct by M/V wyatt candies in 19-31.87S 039-15.45W2016-10-05
- Underwater operations 1100Z to 2100Z daily 17 thru 31 aug by M/V wyatt candies in 19-31.87S 039-15.45W2016-08-17
Month of issue in the collected archive
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
- Yellow odas buoy established in 17-58.12S 038-41.48W until 19 octNav aids · 70.5 nm
Worldwide in the collected sources
50 survey operations listed in force · see all
Record snapshot 2026-09-24 21:43Z; 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.