NOTICE ADVISORY TO NAVSTAR USERS (NANU) #079-93089 SUBJ: PRN31 LAUNCH REF: NANU 078-93089 (MSG DTG 301528Z MAR 93) 1. CONDITION: PRN31 (SVN31) WAS LAUNCHED ON DAY 089 (30 MAR 93) AT 0309 UTC. PRN31 WILL RESIDE IN THE C3 SLOT. 2. DISREGARD NANU 078-93089, WHICH STATES PRN7 WAS LAUNCHED. PRN7 IS SCHEDULED FOR LAUNCH NOT EARLIER THAN 6 MAY 93. 3. 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. 4. POC: CAPT HUTSELL AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.