USA-168
US Air Force | |
| COSPAR ID | 2003-010A[1] |
|---|---|
| SATCAT no. | 27704[1] |
| Mission duration | 10 years (planned)[2] |
| Spacecraft properties | |
| Spacecraft type | GPS Block IIR[2] |
| Bus | AS-4000[2] |
| Manufacturer | Lockheed Martin[2] |
| Launch mass | 2,032 kilograms (4,480 lb)[2] |
| Start of mission | |
| Launch date | 31 March 2003, 22:09:01 UTC |
| Rocket | SLC-17A[3] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Medium Earth (Semi-synchronous) |
| Perigee altitude | 20,063 kilometres (12,467 mi)[4] |
| Apogee altitude | 20,433 kilometres (12,696 mi)[4] |
| Inclination | 54.9 degrees[4] |
| Period | 720.64 minutes[4] |
USA-168, also known as GPS IIR-9 and GPS SVN-45, is an American
USA-168 was launched at 22:09:01 UTC on 31 March 2003, atop a
apogee motor.[2]
By 3 April 2003, USA-168 was in an orbit with a
inclination to the equator.[4] It is used to broadcast the PRN 21 signal, and operates in slot 3 of plane D of the GPS constellation. The satellite has a mass of 2,032 kilograms (4,480 lb), and a design life of 10 years.[2]
As of 2012 it remains in service.
References
- ^ a b "Navstar 52". US National Space Science Data Center. Retrieved 11 July 2012.
- ^ a b c d e f g h Krebs, Gunter. "GPS-2R (Navstar-2R)". Gunter's Space Page. Retrieved 11 July 2012.
- ^ a b c McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 11 July 2012.
- ^ a b c d e McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 11 July 2012.
- ^ McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 11 July 2012.
 | This article about one or more spacecraft of the United States is a stub. You can help Wikipedia by expanding it. |