Surveys
Survey operations in progress until further notice by M/V western neptune towing 4.3 mile long cables in…
Eastern South Atlantic · Angola · HYDROLANT 1871/11
- issued
- 2011-11-09 20:12Z
- status
- cancelled 2011-12-28 10:34Z (archive)
- cancels
- HYDROLANT 1766/11
- authority
- NAVAREA VII 207/11 091940Z NOV 11.
- sea
- South Atlantic Ocean
- position
- -9.307, 12.481
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. ANGOLA. 1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V WESTERN NEPTUNE TOWING 4.3 MILE LONG CABLES IN AREA BOUND BY 08-46.0S 011-54.0E, 10-02.8S 012-12.4E, 09-50.7S 013-03.8E, 08-34.0S 012-45.3E. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 1766/11.
This area · survey operations
39 within 180 nm since 2004 · 0 in the last 12 months · 0 in force now
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- Survey operations 30 mar until further notice by M/V ramform vanguard towing ten 8000 meter long cables in…2023-03-28
- Survey operations in progress until further notice by M/V ramform vanguard towing 14 4500 meter long cables…2023-02-27
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 6500 meter long cables…2023-01-05
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 4050 meter long cables…2022-11-07
- Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cables in…2021-07-01
- Survey operations in progress until further notice by M/V ramform tethys and M/V thor freyja and M/V olga…2021-06-22
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Survey operations in progress until further notice by M/V western jupiter in area bound by 08-46.0S…cancels · 2011-10-26
- Survey operations in progress until further notice by M/V western jupiter in area bound by 08-46.0S…replaced · 2011-10-26
- Cancel HYDROLANT 1871/11 and this msgcancelled by · 2011-12-28
Nearby now · within 120 nm
Nothing else in force within 120 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.