NOTICE ADVISORY TO NAVSTAR USERS (NANU) #077-93089
SUBJ: PRN13 UNUSABLE 089/0328-089/0341
1. CONDITION: PRN13 (SVN9) WAS UNUSABLE ON DAY 089 (30 MAR 93)
BEGINNING 0328 UTC UNTIL DAY 089 AT 0341 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: CAPT HUTSELL AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.