NOTICE ADVISORY TO NAVSTAR USERS (NANU) #230-92004
SUBJ: PRN19 USABLE 004/0030
1. CONDITION: PRN19 (SVN19) IS USABLE AS OF DAY 004 (4 JAN 92)
BEGINNING 0030 UTC.
2. 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.
3. POC: CAPT DODD AT (719)550-6379 OR DSN 560-6379.