Surveys
Underwater operations 130900Z aug to 242200Z jan 24 in area bound by 24-05.90S 043-29.21W, 24-05.90S…
Western South Atlantic · Brazil · HYDROLANT 1783/23
- issued
- 2023-08-12 02:10Z
- status
- cancelled 2023-08-15 03:26Z (archive)
- self-cancels
- 2024-01-24 23:00Z
- authority
- NAVAREA V COASTAL 439/23 120043Z AUG 23.
- sea
- South Atlantic Ocean
- position
- -23.572, -44.997
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL. DNC 01. 1. UNDERWATER OPERATIONS 130900Z AUG TO 242200Z JAN 24 IN AREA BOUND BY 24-05.90S 043-29.21W, 24-05.90S 046-30.46W, 23-02.71S 046-30.46W, 23-02.71S 043-29.21W. 2. CANCEL THIS MSG 242300Z JAN 24.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2023-08-13 09:00Z | 2024-01-24 22:00Z | — | 3949 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · survey operations
419 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now
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20
24
- Underwater operations in progress until 19 may in 23-04.0S 043-02.5W2024-04-21
- Survey operations 17 apr thru 08 may by M/V artemis odyssey in area bound by 25-04.49S 042-10.72W, 25-05.99S…2024-04-17
- Underwater operations 0500Z to 2000Z daily 16 thru 25 apr by M/V double diamond and M/V novo estado in…2024-04-16
- Underwater operations 1100Z to 2000Z daily 06 apr thru 05 may in 24-07.11S 046-08.76W2024-04-06
- Survey operations in progress until 11 mar by M/V artemis odyssey in area bound by 25-04.49S 042-10.72W,…2024-03-02
- Underwater operations 1100Z to 2000Z daily 28 feb thru 26 mar by M/V big john VI, M/V rodrigo neto I and M/V…2024-02-28
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
- Ponta dos meros light 23-13.57S 044-20.83W unlit until 26 sepNav aids · 41.4 nm
- Odas buoy established in 24-06.36S 045-38.78WNav aids · 48 nm
- Laje da conceicao light 24-14.18S 046-41.46W unlit until 24 sepNav aids · 101.2 nm
Worldwide now
86 survey operations in force · see all
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.