NOTICE ADVISORY TO NAVSTAR USERS (NANU) #038-91038
SUBJ: PRN6 UNUSABLE DAY 38 0749-0955 UTC
1. CONDITION ON DAY 38 0749-0955 UTC
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
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
41  10 FEB 91  41/0522-41/0722 41/1727-41/1952
42  11 FEB 91  42/0518-42/0718 42/1723-42/1948
43  12 FEB 91  43/0516-43/0714 43/1731-43/1944
44  13 FEB 91  44/0510-44/0710 44/1731-44/1940
B. PRN6 (MCS: SVN3) WAS UNUSABLE ON DAY 38 BEGINNING 0749 UTC UNTIL
DAY 38 AT 0955 UTC. L-BAND WILL BE TURNED OFF BETWEEN 0800-1000 UTC
UNTIL FURTHER NOTICE.
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.