GPS OPERATIONAL ADVISORY 256
SUBJ: GPS STATUS 13 SEP 2011

1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : NONE
B. BLOCK II: PRNS 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
PLANE : SLOT D6, D1, C2, D4, E3, C6, A4, A3, A1, E6, D2, B4, F3, F1
CLOCK : CS, RB, CS, RB, RB, RB, RB, CS, CS, CS, RB, RB, RB, RB
BLOCK II: PRNS 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29
PLANE : SLOT F2, B1, C4, E4, C3, E1, D3, E2, F4, D5, B2, F5, B3, C1
CLOCK : RB, RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, RB, RB
BLOCK II: PRNS 30, 31, 32
PLANE : SLOT B5, A2, E5
CLOCK : RB, RB, RB

2. CURRENT ADVISORIES AND FORECASTS :
A. FORECASTS: FOR SEVEN DAYS AFTER EVENT CONCLUDES.
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

2011064 182216Z Aug 2011 08 FCSTDV 238/0800-238/2000
2011066 251731Z Aug 2011 02 FCSTDV 242/2210-243/1010
2011067 251736Z Aug 2011 13 FCSTDV 245/0820-245/2020
2011068 261520Z Aug 2011 08 FCSTSUMM 238/0817-238/1420
2011069 261747Z Aug 2011 13 FCSTRESCD 244/1415-245/0215
2011072 310550Z Aug 2011 02 FCSTSUMM 242/2231-243/0430
2011073 012203Z Sep 2011 13 FCSTSUMM 244/1435-244/2125
2011075 042339Z Sep 2011 30 FCSTMX 250/2000-252/2000
2011076 081935Z Sep 2011 16 FCSTDV 259/1225-260/0025
2011077 091901Z Sep 2011 30 FCSTEXTD 250/2000-/
B. ADVISORIES:
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

2011070 261817Z Aug 2011 30 UNUSUFN 238/1816-/
2011071 302241Z Aug 2011 30 UNUSABLE 238/1816-242/2233
C. GENERAL:
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

2011047 160718Z Jul 2011 01 LAUNCH /-/
2011055 031855Z Aug 2011 GENERAL /-/
2011061 151959Z Aug 2011 GENERAL /-/
2011062 162109Z Aug 2011 GENERAL /-/
2011074 042312Z Sep 2011 GENERAL /-/

3. REMARKS:
A. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS THE GPS
OPERATIONS CENTER AT 719-567-2541 OR DSN 560-2541.
B. CIVILIAN: FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT
COMMERCIAL 719-567-2541 24 HOURS DAILY AND INTERNET
HTTPS://WWW.NAVCEN.USCG.GOV