NAVSTAR 53 (USA 175)

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NAVSTAR 53 (USA 175) is classified as:

Global Positioning System (GPS) Constellation

NORAD ID: 28129

Int'l Code: 2003-058A

Perigee: 20,584.3 km

Apogee: 20,897.2 km

Inclination: 54.8 °

Period: 740.5 minutes

Semi major axis: 27111 km

RCS: 6.3095 m² (large)

Launch date: December 21, 2003
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)

Navstar 53, also known as USA 175, as GPS 2R-10, and as SVN-47, is an American navigational satellite in the GPS fleet. It was launched by a Delta 2 rocket from Cape Canaveral AFS at 07:50 UT on 21 December 2003. It will replace the aging but still operational GPS 2A-10 craft in Plane-E and Slot-2. The GPS constellation consists of 24 satellites split into six orbital planes with four in each plane, all in circular orbits of altitude 20,200 km, and inclination of 55 degrees. There are also four additional satellites orbiting as reserves

1 28129U 03058A   25074.92652365 -.00000077  00000-0  00000-0 0  9999
2 28129  54.7678  40.3000 0057705 347.7703  12.0706  1.94476146    34

Source of the keplerian elements: AFSPC