USA-156
US Air Force | |
| COSPAR ID | 2001-004A[1] |
|---|---|
| SATCAT no. | 26690[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 | 30 January 2001, 07:55:01 UTC |
| Rocket | SLC-17A[3] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Medium Earth (Semi-synchronous) |
| Perigee altitude | 20,104 kilometres (12,492 mi)[4] |
| Apogee altitude | 20,266 kilometres (12,593 mi)[4] |
| Inclination | 55 degrees[4] |
| Period | 718.08 minutes[4] |
USA-156, also known as GPS IIR-7 and GPS SVN-54, is an American
USA-156 was launched at 07:55:01 UTC on 30 January 2001, atop a
apogee motor.[2]
By 2 February 2001, USA-156 was in an orbit with a
inclination to the equator.[4] It is used to broadcast the PRN 18 signal, and operates in slot 4 of plane E of the GPS constellation.[6] The satellite has a mass of 2,032 kilograms (4,480 lb), and a design life of 10 years.[2]
The satellite was retired in 2018.
References
- ^ a b "Navstar 50". 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.
- ^ Wade, Mark. "Navstar". Encyclopedia Astronautica. Archived from the original on November 11, 2002. Retrieved 11 July 2012.
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