Survey operations 260300Z sep to 260300Z may 23 in area within ten miles of 00-14.49S 047-23.07W
South Atlantic Ocean · HYDROLANT 2423/22
What this record establishes
Archived notice · 2023-05-25 04:41Z
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 COASTAL 671/22 250306Z SEP 22.. Issued 2022-09-25 04:12Z. 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 parsed report position is -0.241, -47.385 with a 10.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the South Atlantic Ocean →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-09-26 03:00Z | 2023-05-26 03:00Z | — | 5808 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-09-25 04:12Z
- status
- Archived notice
- self-cancels
- 2023-05-26 04:00Z
- authority
- NAVAREA V COASTAL 671/22 250306Z SEP 22.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V COASTAL
- sea
- South Atlantic Ocean
- position
- -0.241, -47.385 · r 10.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL. DNC 01. 1. SURVEY OPERATIONS 260300Z SEP TO 260300Z MAY 23 IN AREA WITHIN TEN MILES OF 00-14.49S 047-23.07W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 260400Z MAY 23.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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
19 within 180 nm since 2001 · 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 14 oct by M/V ramform atlas, M/V drs retumbante, M/V thor frigg and tug…2024-10-01
- Survey operations in progress until 260300Z jan 24 by M/V c-warrior and M/V c-viking in area within ten…2023-05-25
- Survey operations in progress until 291000Z apr by M/V nho g sampaio and M/V nhib ten castelo in area bound…2023-04-17
- Survey operations in progress until 052100Z may by M/V guilherme V in area bound by 01-34.98N 049-01.40W,…2023-04-15
- Survey operations 051000Z nov to 051000Z dec by M/V tenente castelo in area bound by 00-55.20N 049-56.00W,…2022-11-04
- Survey operations in progress until 10 aug by M/V nhisirius in area bound by 01-21.82N 049-21.70W, 01-21.82N…2019-08-02
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
50 survey operations listed in force · see all
Record snapshot 2026-09-25 01:08Z; 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.