NOTICE ADVISORY TO NAVSTAR USERS (NANU) #045-92083
SUBJ: PRN12 UNUSABLE 083/1900-083/1912
1. CONDITION: PRN12 (SVN10) WAS UNUSABLE ON DAY 083 (23 MAR 92)
BEGINNING 1900 UTC UNTIL DAY 083 AT 1912 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: 1LT WINGATE AT  (719) 550-6380 OR DSN 560-6380.