Surveys

Underwater operations 24 thru 28 aug by M/V yokosuka with submersible shinkai 6500 in area bound by…

Philippine Sea · HYDROPAC 2717/23

issued
2023-08-23 14:35Z
status
cancelled 2023-08-29 00:01Z (archive)
self-cancels
2023-08-29 00:01Z
authority
NAVAREA XI 290/23 231209Z AUG 23.
position
29.300, 138.650
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

PHILIPPINE SEA.
DNC 12.
1. UNDERWATER OPERATIONS 24 THRU 28 AUG
   BY M/V YOKOSUKA WITH SUBMERSIBLE SHINKAI 6500
   IN AREA BOUND BY
   29-06.00N 138-30.00E, 29-30.00N 138-30.00E,
   29-30.00N 138-48.00E, 29-06.00N 138-48.00E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 290001Z AUG 23.

This area · survey operations

34 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
10
15
20
24

Season · when survey operations happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.