NOTICE ADVISORY TO NAVSTAR USERS (NANU) #072-90102
SUBJ: PRN19 UNUSABLE 102/0440-102/1411
1. CONDITION: PRN19 WAS UNUSABLE BEGINNING 102/0440 UTC (12 APR 90)
UNTIL 102/1411 UTC DUE TO REPHASING.
2. RECOMMENDATION: CONFIRM AVAILABILITY OF GPS SATELLITES PRIOR TO
USE.
3. POINT OF CONTACT: MAJ WILLIAM FAUVER AT COMMERCIAL (719)550-6379
OR AUTOVON 560-6379.