Surveys

Survey operations in progress until 11 jan by M/V osprey explorer towing three 250 meter long cables in area…

Western South Atlantic · HYDROLANT 33/18

issued: 2018-01-04 00:28Z
status: cancelled 2018-01-11 00:33Z (archive)
authority: NAVAREA V COASTAL S 11/18 040007Z JAN 18.
sea: South Atlantic Ocean
position: -25.550, -42.735
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 11 JAN BY
   M/V OSPREY EXPLORER TOWING THREE 250 METER LONG
   CABLES IN AREA BOUND BY
   25-26.81S 042-47.94W, 25-35.99S 042-53.57W.
   25-36.28S 042-53.03W, 25-27.09S 042-47.39W.
   25-29.47S 042-42.70W, 25-38.65S 042-48.32W.
   25-39.25S 042-47.12W, 25-30.05S 042-41.47W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 12 JAN 18.

This area · survey operations

573 within 180 nm since 2000 · 2 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations in progress until 02 feb by M/V osprey explorer towing three 250 meter long cables in area…cancelled by · 2018-01-11

Nearby now · within 120 nm

Hazardous operations in progress until 060400Z jun 27 in area bound by 24-39.87S 042-29.30W, 24-39.78S…Exercises · 55.5 nm
Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00WExercises · 86.7 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.