Surveys
Survey operations 28 feb thru 06 mar by M/V siem dorado in area bound by 25-23.00S 044-42.00W, 25-31.00S…
Western South Atlantic · HYDROLANT 459/23
- issued
- 2023-02-28 00:55Z
- status
- cancelled 2023-03-07 00:01Z (archive)
- self-cancels
- 2023-03-07 00:01Z
- authority
- NAVAREA V 65/23 280035Z FEB 23.
- sea
- South Atlantic Ocean
- position
- -25.646, -44.705
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. DNC 01. 1. SURVEY OPERATIONS 28 FEB THRU 06 MAR BY M/V SIEM DORADO IN AREA BOUND BY 25-23.00S 044-42.00W, 25-31.00S 044-27.00W, 25-43.00S 044-27.00W, 25-51.00S 044-33.00W, 25-54.00S 044-44.00W, 25-47.00S 044-57.00W, 25-39.00S 044-59.00W, 25-25.00S 044-50.00W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 070001Z MAR 23.
This area · survey operations
589 within 180 nm since 1999 · 1 in the last 12 months · 1 in force now
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- Scientific bouy, yellow, fl y 20 sec established in 27-24.38S 047-15.92W2026-02-27
- 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 30 apr by M/V ramform victory towing ten 8800 meter long cables in area…2024-04-03
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
- Odas buoy established in 24-06.36S 045-38.78WNav aids · 105.7 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.