Surveys

Survey operations in progress until 18 feb by bgp challenger towing one 12000 meter long cable in area bound…

Western South Atlantic · HYDROLANT 494/18

issued
2018-02-11 00:45Z
status
cancelled 2018-02-19 00:01Z (archive)
cancels
HYDROLANT 397/18
authority
NAVAREA V COASTAL S 129/18 110041Z FEB 18.
sea
South Atlantic Ocean
position
-27.550, -45.160
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 18 FEB
   BY BGP CHALLENGER TOWING ONE 12000 METER LONG CABLE
   IN AREA BOUND BY
   27-00S 045-29W, 27-06S 045-39W,
   27-13S 045-40W, 27-15S 045-47W,
   27-31S 045-26W, 27-51S 045-41W,
   27-53S 045-35W, 27-51S 044-57W,
   27-52S 044-46W, 27-50S 044-39W,
   27-51S 044-36W, 27-56S 044-12W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 397/18.
3. CANCEL THIS MSG 19 FEB 18.

This area · survey operations

290 within 180 nm since 1999 · 2 in the last 12 months · 2 in force now

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Season · when survey operations happen here

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month of issue, all years in the archive

Timeline

Nearby now · 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.