NOTICE ADVISORY TO NAVSTAR USERS (NANU) #042-90059
SUBJ: PRN9 UNUSABLE 59/1637-59/1650 AND 59/1710-59/1740
1. CONDITION: PRN13 WAS UNUSABLE BEGINNING 28 FEB 90 DAY 59L AT
1637 UTC UNTIL DAY 59 ENDING 1650 UTC AND AGAIN ON DAY 59
BEGINNING 1710 UTC UNTIL 1740 UTC.
2. RECOMMENDATION: DO NOT USE DATA FROM PRN13 DURING THESE TIMES.
3. POINT OF CONTACT: MAJ WILLIAM FAUVER AT COMMERCIAL (719)550-
6379 OR AUTOVON 560-6379.