NOTICE ADVISORY TO NAVSTAR USERS (NANU) #117-91177
SUBJ: UPDATE FORECAST OUTAGE: PRN14 DAY 177/0600 FOR UP TO 12 HOURS
1. CONDITION (REF NANU 115-91176): THE OUTAGE PREVIOUSLY FORECAST
FOR PRN14 (MCS: SVN14) ON DAY 176 HAS BEEN RESCHEDULED TO OCCUR ON
DAY 177 (26 JUN 91) BEGINNING 0600 FOR UP TO 12 HOURS.
2. REMARKS: ALL SATELLITES UPLOADED DURING THE PRN14 OUTAGE WILL
CONTAIN AN ALMANAC HEALTH SETTING SHOWING PRN14 AS UNUSABLE
(UNHEALTHY) UNTIL THEIR FIRST UPLOAD FOLLOWING PRN14'S RETURN TO
USABLE STATUS. THIS IS NORMAL. USERS WHO WISH TO RESUME USE OF
PRN14 AT THE EARLIEST POSSIBLE TIME MAY BE ABLE TO OVERRIDE THE
PRN14 ALMANAC HEALTH SETTING AFTER CONFIRMING THE PRN14 EPHEMERIS
HEALTH SETTING IS USABLE. THE MINIMUM OUTAGE TIME FOR THIS SCHEDULED
MAINTENANCE IS FROM SIX TO EIGHT HOURS.
3. RECOMMENDATION: CONSULT YOUR RECEIVER MANUAL FOR DETAILS ON HOW
TO DISPLAY EPHEMERIS DATA AND OVERRIDE HEALTH SETTINGS.
4. POINT OF CONTACT: MAJOR FAUVER AT COMMERCIAL (719)550-6379
OR DSN: 560-6379.