Navstar-2RM 1

USA

International Sat. nº:

USA satellite nº:

Also called: USA-183, Navstar-57 or GPS 2R-14

Launch data:

Designation	28874 / 05038A
Launch date	26 Sep 2005 - 03:37 UT
Launch site	CC, SLC-17A
Launch vehicle	Delta-7925 (D313)
Mission	Navigation
Geostationary orbit on 30 Sep:
Perigee / Apogee	20005 x 20188 km
Inclination	55.04°
Period	714.50 min

Spacecraft data:

Prime contractor	Lockheed Martin
Operator	USAF
Platform	AS-4000
Mass at launch	2035 kg?
Dry Mass	kg
Basic shape
Dimension
Solar array
Propulsion	Star-37FM
DC power
Design lifetime

Description:

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.)

Mission details:

First modified Navstar Block 2R satellite (Block 2R-m) in the Global Positioning System (GPS). Mass on-station at the beginning of operations is 1075 kg. Launched into orbital plane C of the GPS constellation.

External links:

Satellite tracking: Real time satellite tracking

Ref.: #3(SD399), #7, #14, #102, #204, #228 - update: 26.07.16