NOTICE ADVISORY TO NAVSTAR USERS (NANU) #013-93020
SUBJ: PRN12 UNUSABLE 020/1439-020/1440
1. CONDITION: PRN12 (SVN10) WAS UNUSABLE ON DAY 020 (20 JAN 93)
BEGINNING 1439 UTC UNTIL DAY 020 AT 1440 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.