GPS OPERATIONAL ADVISORY 154 SUBJ: GPS STATUS 03 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, ...Continue Reading

GPS OPERATIONAL ADVISORY 151 SUBJ: GPS STATUS 31 MAY 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, ...Continue Reading

GPS OPERATIONAL ADVISORY 150 SUBJ: GPS STATUS 30 MAY 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, ...Continue Reading

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2015040 SUBJ: SVN68 (PRN09) FORECAST OUTAGE SUMMARY JDAY 148/1400 - JDAY 148/1915 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2015040 NANU DTG: 281922Z MAY 2015 REFERENCE NANU: 2015038 REF NANU DTG: 192042Z MAY 2015 SVN: 68 PRN: 09 START JDAY: 148 START TIME ZULU: 1400 START CALENDAR DATE: 28 MAY 2015 STOP JDAY: 148 STOP TIME ZULU: 1915 STOP CALENDAR DATE: 28 MAY 2015 2. CONDITION: GPS SATELLITE SVN68 (PRN09) WAS UNUSABLE ON JDAY 148 ...Continue Reading

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2015039 SUBJ: LEAP SECOND 1. CONDITION: THE INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) HAS ANNOUNCED THE INTRODUCTION OF A LEAP SECOND TO OCCUR AT THE END OF JUN 2015. 2. COORDINATED UNIVERSAL TIME (UTC) WILL SEQUENCE AS FOLLOWS: 30 JUN 2015 23 HOURS 59 MINUTES 59 SECONDS 30 JUN 2015 23 HOURS 59 MINUTES 60 SECONDS 01 JUL 2015 00 HOURS 00 MINUTES 00 SECONDS 3. FOR GPS, AS WITH PREVIOUS LEAP SECOND UPDATES, THE UTC DATA I ...Continue Reading

GPS OPERATIONAL ADVISORY 148 SUBJ: GPS STATUS 28 MAY 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, ...Continue Reading

GPS OPERATIONAL ADVISORY 147 SUBJ: GPS STATUS 27 MAY 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, ...Continue Reading

GPS OPERATIONAL ADVISORY 146 SUBJ: GPS STATUS 26 MAY 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, ...Continue Reading

GPS OPERATIONAL ADVISORY 145 SUBJ: GPS STATUS 25 MAY 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, ...Continue Reading

GPS OPERATIONAL ADVISORY 144 SUBJ: GPS STATUS 24 MAY 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, ...Continue Reading