Surveys
Survey operations in progress until 13 aug by M/V sirius H-31 along trackline between 09-30S 034-35W, 11-15S…
HYDROLANT 1240/04
- issued
- 2004-07-24 08:10Z
- status
- cancelled 2004-08-14 00:00Z (archive)
- cancels
- HYDROLANT 1071/04
- authority
- NAVAREA V 611/04 240400Z JUL 04.
- sea
- South Atlantic Ocean
- position
- -10.375, -35.142
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. SURVEY OPERATIONS IN PROGRESS UNTIL 13 AUG BY M/V SIRIUS H-31 ALONG TRACKLINE BETWEEN 09-30S 034-35W, 11-15S 035-42W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1071/04. 3. CANCEL THIS MSG 14 AUG.
This area · survey operations
48 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now
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- Survey operations 270500Z feb to 252100Z mar by M/V sable in area bound by 10-44.76S 036-33.13W, 10-44.53S…2020-02-27
- Underwater operations 160700Z to 161500Z sep by tug mar de espanha, M/V macau, M/V grauna and M/V nb…2019-09-15
- Survey operations 09 may thru 30 sep by M/V ramform tethys towing 16 8100 meter long cables in area bound by…2018-05-08
- Survey operations 08 thru 15 mar by M/V marpex X in area bound by 07-30.0S 034-28.8W, 07-30.0S 034-24.6W,…2018-03-07
- Underwater operations 081230Z to 081530Z feb by M/V omega, M/V leonis, M/V LAEP-10 and M/V dourado in area…2017-02-07
- Underwater operations 1100Z to 1900Z daily 26 thru 30 oct within three miles of 07-56.77S 034-32.50W2015-10-27
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
- Maceio light 09-41.03S 035-43.38W unlit until 31 octNav aids · 53.9 nm
- Tamandare light 08-45.57S 035-06.08W unlit until 02 novNav aids · 97 nm
Worldwide now
84 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.