NOTICE ADVISORY TO NAVSTAR USERS (NANU) #171-96275 SUBJ: PRN30 (SVN30) USABLE JDAY 275/1528 1. CONDITION: GPS SATELLITE PRN30 (SVN30) ACHIEVED INITIAL USABLE STATUS ON JDAY 275 (01 OCT 96) BEGINNING 1528 ZULU. 2. POC: NAVIGATION ANALYST AT COMMERCIAL (719) 567-6378 OR DSN 560-6378.