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NAVSTAR 55 (USA 178)

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    NAVSTAR 55 (USA 178) can be found in the following categories:
    GPS Operational

    NORAD ID: 28361
    Int'l Code: 2004-023A
    Perigee: 19,929.9 km
    Apogee: 20,449.7 km
    Inclination: 54.5 °
    Period: 718.0 minutes
    Semi major axis: 26560 km
    Launch date: June 23, 2004
    Source: United States (US)
    PRN: 23
    Comments: NAVSTAR 55, also known as USA 178, and as GPS 2R-12, is an American navigational satellite in the GPS fleet that was launched from Cape Canaveral by a Delta 2 rocket at 22:54 UT on 23 June 2004. The 2.1 tonne satellite will soon be manuevered into Slot 4 in Plane F to replace the aging GPS 2A-16 that was launched in November 1992. (GPS 2A-16 will however be repositioned in the same Plane as a backup, till its failue.

    Two Line Element Set (TLE):

    1 28361U 04023A   14297.95798372 -.00000012  00000-0  00000+0 0  1155
    2 28361 054.4539 259.4183 0097862 205.2094 029.3769 02.00558419 75752
    Source: AFSPC

    NASA's NSSDC Master Catalog entry for NAVSTAR 55 (USA 178)

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