Surveys
Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cables in…
Eastern South Atlantic · Angola · HYDROLANT 1946/21
- issued
- 2021-07-26 10:22Z
- status
- cancelled 2021-07-29 08:59Z (archive)
- cancels
- HYDROLANT 1734/21
- authority
- NAVAREA VII 217/21 260946Z JUL 21.
- position
- -13.486, 12.198
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. ANGOLA. DNC 01. 1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V RAMFORM TETHYS TOWING 8025 METER LONG CABLES IN AREA BOUND BY 13-09.3S 011-53.6E, 13-09.1S 012-30.0E, 13-49.1S 012-30.0E, 13-49.3S 011-53.9E. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 1734/21.
This area · survey operations
6 within 180 nm since 2012 · 0 in the last 12 months · 0 in force now
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15
20
21
- Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cable in…2021-07-29
- Survey operations in progress until further notice by M/V ramform sovereign towing 8025 meter long cables in…2020-01-28
- Survey operations in progress until further notice by M/V oceanic endeavour towing 12 cables in area bound…2012-07-16
- Survey operations in progress until further notice by M/V ramform valiant towing ten cables in area bound by…2012-03-22
- Survey operations in progress until further notice by M/V ramform valiant towing ten cables in area bound by…2012-02-29
Season · when survey operations happen here
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F
M
A
M
J
J
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month of issue, all years in the archive
Timeline
- Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cables in…cancels · 2021-07-01
- Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cables in…replaced · 2021-07-01
- Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cable in…cancelled by · 2021-07-29
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
75 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.