Other
Prn 18 unusable 240001Z to 241200Z apr 2. cancel this msg 241300Z apr 15
GPS Satellite System · HYDROARC 64/15
- issued
- 2015-04-20 06:47Z
- status
- cancelled 2015-04-24 13:00Z (archive)
- self-cancels
- 2015-04-24 13:00Z
- authority
- COGARD NAVCEN GPS 27/15 171631Z APR 15.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
GPS SATELLITE SYSTEM. 1. PRN 18 UNUSABLE 240001Z TO 241200Z APR 2. CANCEL THIS MSG 241300Z APR 15.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2015-04-24 00:01Z | 2015-04-24 12:00Z | — | 11 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
34 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.