NOTICE ADVISORY TO NAVSTAR USERS (NANU) #075-92116
SUBJ: PRN28 USABLE 116/2032
1. CONDITION: PRN28 (SVN28) IS USABLE ON DAY 116 (25 APR 92)
BEGINNING 2032 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.