NOTICE ADVISORY TO NAVSTAR USERS (NANU) #094-92128
SUBJ: PRN13 UNUSABLE 128/0537-128/0550
1. CONDITION: PRN13 (SVN9) WAS UNUSABLE ON DAY 128 (7 MAY 92)
BEGINNING 0537 UTC UNTIL DAY 128 AT 0550 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: CPT JENSEN AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.