Nav aids

Loran-c chain northwest pacific, rate 8930, and station nil jima, rate 9930-Y, off air 062200Z to 070600Z…

HYDROPAC 1963/01

issued: 2001-12-02 08:15Z
status: cancelled 2001-12-07 09:50Z (archive)
self-cancels: 2001-12-08 07:00Z
authority: NAVAREA XI 820/01 POR EGC 241 020803Z DEC 01
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. LORAN-C CHAIN NORTHWEST PACIFIC, RATE 8930, AND STATION
   NIL JIMA, RATE 9930-Y, OFF AIR 062200Z TO 070600Z DEC,
   ALTERNATE 072200Z TO 080600Z DEC.
2. CANCEL THIS MSG 080700Z DEC.

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2001-12-06 22:00Z	2001-12-07 06:00Z	—	8 h
2001-12-07 22:00Z	2001-12-08 06:00Z	—	8 h

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

Timeline

Seismic survey in progress until further notice by M/V geco resolution towing five 2.5 mile long cables in…cancelled by · 2001-12-07

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

195 aids-to-navigation notices in force · see all

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.