NOTICE ADVISORY TO NAVSTAR USERS (NANU) #096-93106
SUBJ: PRN18 UNUSABLE 106/0409-106/0440
1. CONDITION: PRN18 (SVN18) WAS UNUSABLE ON DAY 106 (16 APR 93)
BEGINNING 0409 UTC UNTIL DAY 106 AT 0440 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.