Surveys

Survey operations in progress until 112200Z sep by M/V pgs apollo towing ten five mile long cables in area…

South China Sea · Taiwan · HYDROPAC 3090/17

issued
2017-09-10 13:49Z
status
cancelled 2017-09-11 23:00Z (archive)
self-cancels
2017-09-11 23:00Z
cancels
HYDROPAC 3001/17
authority
NAVAREA XI 582/17 101341Z SEP 17.
position
21.074, 118.609
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
TAIWAN.
DNC 23.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 112200Z SEP
   BY M/V PGS APOLLO TOWING TEN FIVE MILE
   LONG CABLES IN AREA BOUND BY
   22-05.4N 119-34.5E, 21-47.5N 119-50.6E,
   20-03.1N 117-37.6E, 20-21.0N 117-22.4E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 3001/17(94).
3. CANCEL THIS MSG 112300Z SEP 17.

This area · survey operations

33 within 180 nm since 2012 · 0 in the last 12 months · 0 in force now

12
15
19

Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force 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.