Surveys

Survey operations in progress until 26 jun by M/V oceanic sirius towing 12 11112 meter long cables in area…

Western South Atlantic · Brazil-southeast Coast · HYDROLANT 1666/21

issued
2021-06-23 09:39Z
status
cancelled 2021-06-27 00:01Z (archive)
cancels
HYDROLANT 1627/21
authority
NAVAREA V 282/21 060318Z JUN 21.
position
-23.796, -39.142
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTHEAST COAST.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 26 JUN BY
   M/V OCEANIC SIRIUS TOWING 12 11112 METER LONG
   CABLES IN AREA BOUND BY
   24-55.57S 039-50.52W, 24-56.62S 037-38.60W,
   22-35.70S 037-41.73W, 22-50.33S 039-56.13W,
   23-32.05S 040-58.21W, 24-01.60S 041-56.43W,
   24-13.50S 039-50.52W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1627/21.
3. CANCEL THIS MSG 27 JUN 21.

This area · survey operations

480 within 180 nm since 2000 · 8 in the last 12 months · 8 in force now

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26

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

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.