NOTICE ADVISORY TO NAVSTAR USERS (NANU) #034-91034
SUBJ: PRN6 UNUSABLE DAY 34 0810-1033 UTC
1. CONDITION ON DAY 34 (3 FEB 91):
A. PRN9 (MCS: SVN6) USABLE OVER WESTERN NORTH AMERICA (WNA) AND
PERSIAN GULF AREA (PGA). L-BAND-ON FORECAST FOR THE NEXT SEVEN
DAYS:
DAY DATE      L-BAND-ON WNA   L-BAND-ON PGA
34  03 FEB 91 34/0550-34/0750 34/1805-34/2020
35  04 FEB 91 35/0546-35/0746 35/1801-35/2016
36  05 FEB 91 36/0542-36/0742 36/1757-36/2012
37  06 FEB 91 37/0538-37/0738 37/1743-37/2008
38  07 FEB 91 38/0534-38/0734 38/1739-38/2004
39  08 FEB 91 39/0530-39/0730 39/1735-39/2000
40  09 FEB 91 40/0526-40/0726 40/1731-40/1956
B. PRN6 (MCS: SVN3) WAS UNUSABLE ON DAY 34 BEGINNING 0810 UTC UNTIL
DAY 34 AT 1033 UTC. PRN6 WAS ALSO UNUSABLE ON DAY 33 BEGINNING 2207
UTC UNTIL 2240 UTC.
THE L-BAND OF PRN6 WILL BE DISABLED AS BELOW:
DAY DATE      UNUSABLE (UTC)  ACTUAL (UTC)
34  03 FEB 91 34/0815-34/1000 34/0810-34/1033
35  04 FEB 91 35/0815-35/1000
36  05 FEB 91 36/0815-36/1000
2. RECOMMENDATION: PRN6 WILL BE UNUSABLE FOR NAVIGATION OR
POSITIONING DURING THESE OUTAGES. CONFIRM AVAILABILITY OF
SATELLITES PRIOR TO USE.
3. POINT OF CONTACT: MAJ WILLIAM FAUVER AT COMMERCIAL (719)550-6379
OR AUTOVON 560-6379.