NOTICE ADVISORY TO NAVSTAR USERS (NANU) #015-93021
SUBJ: PRN12 UNUSABLE 021/0300-021/0309
1. CONDITION: PRN12 (SVN10) WAS UNUSABLE ON DAY 021 (21 JAN 93)
BEGINNING 0300 UTC UNTIL DAY 021 AT 0309 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 SKINNER AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.