Hello, The primary U.S. Coast Guard Navigation Center Website (http://www.navcen.uscg.gov ) is currently unavailable to due to technical difficulties. The estimated time of repair is UNKNOWN. We will advise you when the site has been restored to normal operation. In the mean time, all information you would normally access from our primary site is available on our secondary site at http://www.navcenter.org . This secondary site is maintained specifically to provide navigation safety information in the event the pri ...Continue Reading

Hello, The primary U.S. Coast Guard Navigation Center Website (http://www.navcen.uscg.gov ) is currently unavailable to due to technical difficulties. The estimated time of repair is UNKNOWN. We will advise you when the site has been restored to normal operation. In the mean time, all information you would normally access from our primary site is available on our secondary site at http://www.navcenter.org . This secondary site is maintained specifically to provide navigation safety information in the event the pri ...Continue Reading

GPS OPERATIONAL ADVISORY 331 SUBJ: GPS STATUS 26 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 330 SUBJ: GPS STATUS 25 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 329 SUBJ: GPS STATUS 24 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 328 SUBJ: GPS STATUS 23 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 327 SUBJ: GPS STATUS 22 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 326 SUBJ: GPS STATUS 21 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 325 SUBJ: GPS STATUS 20 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading

GPS OPERATIONAL ADVISORY 324 SUBJ: GPS STATUS 19 NOV 2008 1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : NONE B. BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, 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, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, ...Continue Reading