GPS OPERATIONAL ADVISORY 171 SUBJ: GPS STATUS 20 JUN 2015

1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A BLOCK I : NONE B BLOCK II: PRNS 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D2, D1, E1, D6, E3, D4, A4, F3, E6, D5, B4, F6, F1, F2 CLOCK : RB, RB, RB, RB, RB, RB, RB, RB, CS, 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, B6, D3, E2, F4, A1, B2, B5, C2, B3, C1 CLOCK : RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, RB, RB, RB BLOCK II: PRNS 30, 31, 32 PLANE : SLOT A3, 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)

2015043 041954Z JUN 2015 25 FCSTMX 162/1415-163/0215 2015044 042050Z JUN 2015 31 FCSTDV 162/0920-162/2120 2015046 101515Z JUN 2015 27 FCSTMX 166/1300-167/0100 2015047 111505Z JUN 2015 31 FCSTSUMM 162/0952-162/1504 2015048 111814Z JUN 2015 25 FCSTSUMM 162/1452-162/1812 2015049 121531Z JUN 2015 24 FCSTMX 168/1100-168/2300 2015050 121550Z JUN 2015 26 FCSTMX 170/0000-170/1200 2015051 151657Z JUN 2015 27 FCSTSUMM 166/1332-166/1655 2015052 161545Z JUN 2015 06 FCSTMX 174/2000-175/0800 2015053 161551Z JUN 2015 30 FCSTMX 176/1600-177/0400 2015054 161556Z JUN 2015 20 FCSTDV 177/0230-177/1430 2015055 171451Z JUN 2015 24 FCSTSUMM 168/1129-168/1446 2015056 190351Z JUN 2015 26 FCSTSUMM 170/0047-170/0346 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)

2014038 241350Z APR 2014 GENERAL /-/ 2014039 271351Z APR 2014 GENERAL /-/ 2015021 262242Z MAR 2015 GENERAL /-/ 2015032 300003Z APR 2015 GENERAL /-/ 2015039 281555Z MAY 2015 LEAPSEC /-/

1. 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 HTTPS://GPS AFSPC AF MIL/GPS OR HTTPS://GPS AFSPC AF MIL/GPSOC http://www navcen uscg gov/?pageName=listserverunsubscribe&srvr=GPSStat