Surveys

Underwater operations in progress until 170259Z nov by M/V ocean surveyor in area bound by 20-47.11S…

HYDROLANT 2056/05

issued: 2005-11-09 05:26Z
status: cancelled 2005-11-17 03:59Z (archive)
self-cancels: 2005-11-17 03:59Z
authority: NAVAREA V 905/05 090402Z NOV 05.
sea: South Atlantic Ocean
position: -20.994, -40.423
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS
   UNTIL 170259Z NOV BY M/V OCEAN SURVEYOR
   IN AREA BOUND BY
   20-47.11S 040-33.40W, 21-13.94S 040-17.58W,
   21-13.54S 040-16.78W, 20-46.72S 040-32.22W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 170359Z NOV.

This area · survey operations

601 within 180 nm since 2000 · 24 in the last 12 months · 15 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Nearby now · within 120 nm

Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 35.9 nm
Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 38.5 nm
Underwater operations 1100Z to 2100Z daily 13 thru 22 aug by M/V comando b and M/V am kirti in 20-23.90S…Surveys · 38.7 nm
Underwater operations 1100Z to 2100Z daily 15 thru 29 aug by M/V comando b and M/V rosco banyan in 20-23.37S…Surveys · 38.8 nm
Underwater operations 1100Z to 2100Z daily 12 thru 21 aug by M/V comando b and M/V faneromeni in 20-23.67S…Surveys · 39 nm
Underwater operations 0800Z to 1800Z daily 08 thru 22 aug by M/V marsanne and M/V comando b in 20-23.57S…Surveys · 39.3 nm
Underwater operations 0800Z to 1800Z daily 11 thru 25 aug by M/V comando b and M/V faneromeni in 20-23.00S…Surveys · 39.7 nm
Underwater operations in progress until 27 aug by M/V navios felix and M/V comando b in 20-22.12S 040-08.38WSurveys · 40.8 nm
Underwater operations 0800Z to 1800Z daily 02 thru 16 aug by M/V comando b and M/V royal topaz in 20-21.62S…Surveys · 41.4 nm
Survey operations in progress until 312200Z aug in area bound by 21-36.17S 041-00.00W, 21-36.05S 040-37.59W,…Surveys · 55.1 nm
Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 58.2 nm
Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 62.1 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.