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NAVSTAR 51 (USA 166)

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NAVSTAR 51 (USA 166) is classified as:


NORAD ID: 27663
Int'l Code: 2003-005A
Perigee: 19,811.4 km
Apogee: 20,569.2 km
Inclination: 55.0 °
Period: 718.0 minutes
Semi major axis: 26561 km
RCS: 7.9432 m2 (large)
Launch date: January 29, 2003
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)
PRN: 16

Navstar 51 (also known as USA 166, and as GPS 2R-8) is the latest to join the American (DoD) fleet of Global Positioning Satellites. It was launched by a Delta 2 rocket from Cape Canaveral at 18:06 UT on January 29 2003. The fleet is operating in full capacity with 24 spacecraft (in six planes, with four satellites in each). GPS 2R-8 will replace the aging GPS 2A-18, which will be shifted away in its Plane-B and then retired.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 27663U 03005A   25199.07603065  .00000085  00000-0  00000-0 0  9998
2 27663  54.9655 228.2460 0142650  50.2963 320.7449  2.00552412164615
Source of the keplerian elements: AFSPC