NOTICE ADVISORY TO NAVSTAR USERS (NANU) #081-93090
SUBJ: PRN13 UNUSABLE 090/0100-090/0124
1. CONDITION: PRN13 (SVN9) WAS UNUSABLE ON DAY 090 (31 MAR 93)
BEGINNING 0100 UTC UNTIL DAY 090 AT 0124 UTC.
2. 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.
3. POC: CAPT HUTSELL AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.