NOTICE ADVISORY TO NAVSTAR USERS (NANU) #054-93085
SUBJ: FORECAST OUTAGE PRN25 DAY 084/2015 UTC FOR UP TO 8 HOURS
1. CONDITION: PRN25 (SVN25) IS EXPECTED TO BE UNUSABLE ON DAY
084 (25 MAR 93) BEGINNING 2015 UTC FOR UP TO 8 HOURS DUE TO
SCHEDULED MAINTENANCE. THE HISTORICAL MINIMUM FOR THIS TYPE
OF MAINTENANCE IS 5 HOURS.
2. THIS SCHEDULED MAINTENANCE WILL REPOSITION PRN25. USERS ARE
REMINDED TO UPDATE ALMANACS IF NECESSARY.
3. AFFECTED AREAS: GLOBAL, EXCEPT FOR: NORTH AMERICA WEST OF THE
MISSISSIPPI RIVER AND MEXICO WEST TO HAWAII.
4. USERS OF GPS ARE CAUTIONED THAT THE SYSTEM IS NOT YET FULLY
OPERATIONAL. SIGNAL AVAILABILITY AND ACCURACY ARE SUBJECT TO CHANGE
DUE TO AN INCOMPLETE CONSTELLATION AND OPERATIONAL TEST ACTIVITIES.
5. POC: CAPTAIN HUTSELL AT (719) 550-6378 OR DSN 560-6378.