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    NAVSTAR 24 (USA 79) can be found in the following categories:
    GPS Operational

    NORAD ID: 21890
    Int'l Code: 1992-009A
    Perigee: 20,884.3 km
    Apogee: 21,080.3 km
    Inclination: 55.6 °
    Period: 750.7 minutes
    Semi major axis: 27360 km
    Launch date: February 23, 1992
    Source: United States (US)
    Comments: Global Positioning System (GPS) was developed by the US Department of Defense to provide all-weather round-the-clock navigation capabilities for military ground, sea, and air forces. Since its implementation, GPS has also become an integral asset in numerous civilian applications and industries around the globe, including recreational used (e.g., boating, aircraft, hiking), corporate vehicle fleet tracking, and surveying. GPS employs 24 spacecraft in 20,200 km circular orbits inclined at 55 degrees. These vehicles are placed in 6 orbit planes with four operational satellites in each plane.

    Two Line Element Set (TLE):

    1 21890U 92009A   15089.65788269 -.00000046  00000-0  00000+0 0  9994
    2 21890 055.6265 315.5332 0035820 338.4053 304.1067 01.91830767167655
    Source: AFSPC

    NASA's NSSDC Master Catalog entry for NAVSTAR 24 (USA 79)

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