NOTICE ADVISORY TO NAVSTAR USERS (NANU) #014-97042
SUBJ: FORECAST OUTAGE SUMMARY PRN18 (SVN18) JDAY 042/1646 - 042/2323
REF: NANU 005-97042 (DTG 281552Z JAN 97)
1. CONDITION: GPS SATELLITE PRN18 (SVN18) WAS UNUSABLE ON JDAY 042
(11 FEB 97) BEGINNING 1646 ZULU UNTIL JDAY 042 AT 2323 ZULU DUE TO
MAINTENANCE. SCHEDULED MAINTENANCE DID NOT REPOSITION PRN18.
2. POC: NAVIGATION ANALYST AT (719) 567-6378 OR DSN 560-6378.