NAVSTAR 57 (USA 183)

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NAVSTAR 57 (USA 183) is classified as:

NORAD ID: 28874

Int'l Code: 2005-038A

Perigee: 19,838.7 km

Apogee: 20,540.4 km

Inclination: 56.4 °

Period: 718.0 minutes

Semi major axis: 26560 km

RCS: 3.4122 m² (large)

Launch date: September 26, 2005
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)
PRN: 17

Navstar 57, also known as USA 183 and as GPS 2R-M1 (and as GPS 2R-14), was launched by a Delta 2 rocket from Cape Canaveral AFS at 03:37 UT on 26 September 2005. It has three more frequency channels (with two more military and one more civilian), and is more secure against jamming and radiation than the older models. It will be positioned in Slot 4 of Plane C, taking over the duties of the aging GPS 2A-20 (that was launched in May 1993). It is planned to replace all the older members of the 28-satellite fleet with the updated 2R-M versions in a few years. (The perigee will be raised from 266 km to about 20,000 km soon.)

1 28874U 05038A   19047.85089437 -.00000056 +00000-0 +00000-0 0  9992
2 28874 056.3760 019.2085 0132105 261.3893 358.8527 02.00561477098138

Source of the keplerian elements: AFSPC