GPS OPERATIONAL ADVISORY 142
SUBJ: GPS STATUS 22 MAY 2007

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 F6, D1, C2, D4, B4, C1, C5, A3, A1, E3, D2, B5, F3, F1
CLOCK : CS, RB, CS, RB, RB, RB, RB, CS, RB, CS, RB, RB, RB, RB
BLOCK II: PRNS 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29
PLANE : SLOT B1, C4, E4, C3, E1, D3, E2, F4, D6, A5, F2, A4, B3, F5
CLOCK : RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, CS, RB, CS
BLOCK II: PRNS 30, 31
PLANE : SLOT B2, A2
CLOCK : CS, 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)

2007061 272139Z APR 2007 14 FCSTDV 122/1700-123/0730
2007062 022237Z MAY 2007 14 FCSTSUMM 122/1733-122/2237
2007063 042254Z MAY 2007 20 FCSTDV 130/1900-131/1030
2007064 101751Z MAY 2007 24 FCSTMX 134/1330-134/2130
2007065 110217Z MAY 2007 20 FCSTSUMM 130/1911-131/0217
2007066 111833Z MAY 2007 01 FCSTDV 137/2100-138/2300
2007067 141659Z MAY 2007 24 FCSTSUMM 134/1350-134/1659
2007068 151834Z MAY 2007 01 FCSTRESCD 137/2030-138/2300
2007069 180241Z MAY 2007 01 FCSTSUMM 137/2046-138/0239
2007070 181527Z MAY 2007 04 FCSTDV 144/0730-144/2130
B. ADVISORIES:
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU
TIME START - STOP)

C. GENERAL:
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU
TIME START - STOP)

2007051 231524Z MAR 2007 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 (703)313-5900 24 HOURS DAILY AND INTERNET
HTTP://WWW.NAVCEN.USCG.GOV
C. MILITARY SUPPORT WEBPAGES CAN BE FOUND AT THE FOLLOWING
HTTP://GPS.AFSPC.AF.MIL/GPS OR HTTP://GPS.AFSPC.AF.MIL/GPSOC