NOTICE ADVISORY TO NAVSTAR USERS (NANU) #099-92137
SUBJ: PRN3 USABLE 137/0720
1. CONDITION: PRN3 (SVN11) WAS UNUSABLE ON DAY 137 (16 MAY 92)
BEGINNING 0432 UTC UNTIL DAY 137 AT 0720 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: LT SKINNER AT COMMERCIAL (719) 550-6379 OR DSN 560-6379.