NOTICE ADVISORY TO NAVSTAR USERS (NANU) #053-92094
SUBJ: FORECAST OUTAGE PRN18 DAY 094/1645-2000
1. CONDITION: PRN18 (SVN18) IS EXPECTED TO BE UNUSABLE ON DAY 094
(3 APR 92) BEGINNING 1645 UTC UNTIL DAY 094 AT 2000 UTC. THIS OUTAGE
WILL NOT REPOSITION PRN18.
2. AFFECTED AREAS: NORTHERN HEMISPHERE.
3. USERS OF GPS ARE CAUTIONED THAT THE SYSTEM IS NOT YET FULLY
OPERATIONAL. SIGNAL AVAILABILITY AND ACCURACY ARE SUBJECT TO CHANGE
DUE TO AN INCOMPLETE CONSTELLATION AND OPERATIONAL TEST ACTIVITIES.
4. POC: 1LT INGEGNERI AT (719) 550-6379 OR DSN 560-6379.