Missiles

Hazardous operations, rocket launching: a. 280337Z to 280523Z dec in area within 49 miles of 30-37-38N…

Philippine Sea · HYDROPAC 4553/17

What this record establishes

Archived notice · 2017-12-26 12:13Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XI 833/17 231209Z DEC 17.. Issued 2017-12-23 12:27Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Philippine Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Philippine Sea →

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
2017-12-28 03:37Z2017-12-28 05:23Z—1 h 46
2017-12-28 03:48Z2017-12-28 05:35Z—1 h 47

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2017-12-23 12:27Z
status
Archived notice
self-cancels
2017-12-28 06:35Z
authority
NAVAREA XI 833/17 231209Z DEC 17.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Philippine Sea
position
30.561, 138.967
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
PHILIPPINE SEA.
JAPAN.
DNC 12.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING:
   A. 280337Z TO 280523Z DEC IN AREA WITHIN
      49 MILES OF 30-37-38N 133-09-50E.
   B. 280348Z TO 280535Z DEC IN AREA WITHIN
      97 MILES OF 30-32-26N 140-26-58E.
2. CANCEL THIS MSG 280635Z DEC 17.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Hazardous operations
NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
Rocket launching
The areas where spent rocket stages, boosters and fairings are expected to fall after a launch, with the launch window.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Within a radius of
A circular area — every position within a stated distance of a point.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · missile & rocket hazards

3 within 180 nm since 2017 · 0 in the last 12 months · 0 listed in force now

17
18

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

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

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

Worldwide in the collected sources

4 missile & rocket hazards listed in force · see all

Record snapshot 2026-10-02 06:35Z; source collection times vary.

Missiles

Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →

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.