GPS OPERATIONAL ADVISORY 283
SUBJ: GPS STATUS 10 OCT 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, B5, C1, C5, A3, A1, E3, D2, B4, F3, F1
CLOCK : CS, RB, CS, RB, RB, RB, RB, CS, RB, RB, 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, 32
PLANE : SLOT B2, A2, E5
CLOCK : CS, 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)

2007113 271610Z SEP 2007 01 FCSTDV 275/1000-275/2345
2007116 021640Z OCT 2007 01 FCSTSUMM 275/1018-275/1637
2007117 051617Z OCT 2007 27 FCSTMX 284/1330-285/0130

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

2007114 271635Z SEP 2007 01 UNUSUFN 270/1614-/
2007115 271920Z SEP 2007 01 UNUSABLE 270/1614-270/1920
2007118 080439Z OCT 2007 19 UNUSUFN 281/0437-/
2007119 080637Z OCT 2007 12 UNUSUFN 281/0633-/
2007120 081636Z OCT 2007 19 UNUSABLE 281/0437-281/1636
2007121 081650Z OCT 2007 12 UNUSABLE 281/0633-281/1649
2007123 082134Z OCT 2007 14 UNUSABLE 281/2104-/
2007124 090149Z OCT 2007 14 UNUSABLE 281/2104-/282/0143
2007125 090856Z OCT 2007 23 UNUSUFN 282/0855-/
2007126 091124Z OCT 2007 23 UNUSABLE 282/0855-282/1116
2007127 091202Z OCT 2007 16 UNUSUFN 282/1159-/
2007128 091414Z OCT 2007 16 UNUSABLE 282/1202-282/1359
2007129 100828Z OCT 2007 20 UNUSUFN 283/0824-/
2007130 101033Z OCT 2007 20 UNUSABLE 283/0824-283/1030

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

2007051 231524Z MAR 2007 GENERAL /-/
2007081 212238Z JUN 2007 GENERAL /-/
2007085 261620Z JUL 2007 GENERAL /-/
2007105 061614Z SEP 2007 GENERAL /-/
2007109 172148Z SEP 2007 GENERAL /-/
2007122 081723Z OCT 2007 GENERAL /-/
2007131 101101Z OCT 2007 GENERAL /-/
2007132 101111Z OCT 2007 GENERAL /-/
2007133 101111Z OCT 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