Other

Prn 20 unusable

GPS Satellite System · HYDROPAC 299/10

issued: 2010-02-15 14:20Z
status: cancelled 2010-02-20 10:31Z (archive)
authority: COGARD NAVCEN GPS 169/10 151016Z FEB 10.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

GPS SATELLITE SYSTEM.
PRN 20 UNUSABLE.

Timeline

HYDROPAC messages in force 201000Z feb 2010cancelled by · 2010-02-20

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

68 other warnings in force · see all

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.