Surveys
Underwater operations 28 dec thru 01 jan during daylight hours by M/V natusima with submersible in areas: a.…
HYDROPAC 1443/99
- issued
- 1999-12-23 09:20Z
- status
- cancelled 1999-12-27 12:57Z (archive)
- authority
- NAVAREA XI 764/99 230800Z DEC 99
- sea
- Philippine Sea
- position
- 29.345, 139.516
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS 28 DEC THRU 01 JAN DURING
DAYLIGHT HOURS BY M/V NATUSIMA WITH SUBMERSIBLE
IN AREAS:
A. WITHIN THREE MILES OF:
1. 32-06.3N 139-51.2E.
2. 32-06.5N 139-51.0E.
B. BOUND BY:
1. 29-20.0N 139-17.6E, 29-20.3N 139-44.7E,
29-25.4N 139-18.7E, 29-15.0N 139-42.6E.
2. 29-20.2N 139-17.4E, 29-20.5N 139-44.5E,
29-25.6N 139-18.5E, 29-15.2N 139-42.4E.
2. CANCEL THIS MSG 02 JAN 2000.
This area · survey operations
41 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
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24
- Underwater operations 04 thru 21 may by submersible shinkai 6500 and M/V yokosuka in area bound by 28-22.00N…2024-05-03
- Underwater operations 01 thru 07 mar by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2024-02-29
- Underwater operations 24 thru 28 aug by M/V yokosuka with submersible shinkai 6500 in area bound by…2023-08-23
- Underwater operations 20 thru 27 sep by M/V shinkai 6500, mother ship, and yokosuka with subersible in area…2022-09-19
- Underwater operations 11 thru 13 mar by M/V yokosuka with submersible shinkai 6500 in area bound by 26-10N…2022-03-06
- Underwater operations 13 thru 23 jun by M/V yokosuka with submersible in area bound by 28-30N 138-20E,…2021-06-12
Season · when survey operations happen here
J
F
M
A
M
J
J
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month of issue, all years in the archive
Timeline
- Cancel HYDROPAC 1443/99 and this msg, operations suspendedcancelled by · 1999-12-27
Nearby now · within 120 nm
Nothing else in force within 120 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.