GPS Operational
NORAD ID: 21890
Int'l Code: 1992-009A
Perigee: 20,893.6 km
Apogee: 21,085.4 km
Inclination: 55.9 °
Period: 750.7 minutes
Semi major axis: 27360 km
Launch date: February 23, 1992
Source: United States (US)
PRN:
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 13141.00160008 -.00000046 00000-0 00000+0 0 8972
2 21890 055.9055 340.0677 0035041 323.5309 354.3785 01.91830146154633
Source: AFSPC
NASA's NSSDC Master Catalog entry for NAVSTAR 24 (USA 79)
