NOTICE ADVISORY TO NAVSTAR USERS (NANU) #002-91003
SUBJ: PRN23/SVN23 FORECAST OUTAGE
1. CONDITION: PRN23/SVN23 WILL BE UNUSABLE ON DAY 004 (4 JAN 91)
BEGINNING APPROXIMATELY 1600 UTC FOR UP TO 72 HOURS DUE TO SCHEDULED
MAINTENANCE.
2. RECOMMENDATION: CONFIRM AVAILABILITY OF SATELLITES PRIOR TO USE.
3. POINT OF CONTACT: MAJOR FAUVER AT COMMERCIAL: (719) 550-6379
OR AUTOVON: 560-6379.