Surveys

Survey operations in progress until 04 mar by M/V bgp challenger towing 12000 meter long cable in area bound…

Western South Atlantic · Brazil-northeast Coast · HYDROLANT 605/17

issued: 2017-02-23 03:34Z
status: cancelled 2017-03-05 00:01Z (archive)
cancels: HYDROLANT 527/17
authority: NAVAREA V 54/17 230152Z FEB 17.
position: -4.334, -35.042
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-NORTHEAST COAST.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 04 MAR
   BY M/V BGP CHALLENGER TOWING 12000 METER LONG CABLE
   IN AREA BOUND BY
   04-09.18S 036-29.02W, 04-09.18S 034-18.52W,
   04-41.68S 034-19.95W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 527/17.
3. CANCEL THIS MSG 05 MAR 17.

This area · survey operations

61 within 180 nm since 2000 · 0 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 23 feb by M/V bgp challenger towing 10000 meter long cable in area bound…cancels · 2017-02-15
Survey operations in progress until 23 feb by M/V bgp challenger towing 10000 meter long cable in area bound…replaced · 2017-02-15

Nearby now · within 120 nm

Odas buoy established in 05-09.46S 035-09.81WNav aids · 50 nm
Odas buoy bravo rn-l temporarily established until 20 oct in 04-53.00S 035-46.01WNav aids · 54.5 nm
Hazardous operations 03 aug thru 11 sep in area bound by 05-42.53S 034-45.02W, 06-09.83S 034-46.82W,…Exercises · 96.6 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.