NOTICE ADVISORY TO NAVSTAR USERS (NANU) #227-92263
SUBJ: PRN12 UNUSABLE 263/0824-263/0920
1. CONDITION: PRN12 (SVN10) WAS UNUSABLE ON DAY 263 (19 SEP 92)
BEGINNING 0824 UTC UNTIL DAY 263 AT 0920 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.