 A Block IIR GPS satellite | |
| Mission type | Navigation |
|---|---|
| Operator | US Air Force |
| COSPAR ID | 2004-045A |
| SATCAT no. | 28474 |
| Mission duration | 10 years (planned) |
| Spacecraft properties | |
| Spacecraft type | GPS Block IIR |
| Bus | AS-4000 |
| Manufacturer | Lockheed Martin |
| Launch mass | 2,032 kilograms (4,480 lb) |
| Start of mission | |
| Launch date | 6 November 2004, 05:39:00 (2004-11-06UTC05:39Z) UTC |
| Rocket | Delta II 7925-9.5, D308 |
| Launch site | Cape Canaveral SLC-17B |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Medium Earth (Semi-synchronous) |
| Perigee altitude | 19,936 kilometres (12,388 mi) |
| Apogee altitude | 20,426 kilometres (12,692 mi) |
| Inclination | 54.8 degrees |
| Period | 717.94 minutes |
USA-180, also known as GPS IIR-13 and GPS SVN-61, is an American navigation satellite which forms part of the Global Positioning System. It was the thirteenth of twenty one Block IIR GPS satellites to be launched, and the last in the original configuration. It was built by Lockheed Martin, using the AS-4000 satellite bus.
USA-180 was launched at 05:39:00 UTC on 6 November 2004, atop a Delta II carrier rocket, flight number D308, flying in the 7925-9.5 configuration. The launch took place from Space Launch Complex 17B at the Cape Canaveral Air Force Station, and placed USA-180 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37FM apogee motor.
By 5 January 2005, USA-180 was in an orbit with a perigee of 19,936 kilometres (12,388 mi), an apogee of 20,426 kilometres (12,692 mi), a period of 717.94 minutes, and 54.8 degrees of inclination to the equator. It is used to broadcast the PRN 02 signal, and operates in slot 1 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. As of 2019 it remains in service.
References
- ^ "Navstar 56". US National Space Science Data Center. Retrieved 11 July 2012.
- ^ Krebs, Gunter. "GPS-2R (Navstar-2R)". Gunter's Space Page. Retrieved 11 July 2012.
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 11 July 2012.
- ^ McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 11 July 2012.
- McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Archived from the original on 15 August 2020. Retrieved 11 July 2012.
| NAVSTAR Global Positioning System satellites | |
|---|---|
| List of GPS satellites | |
| Block I | |
| Block II | |
| Block IIA | |
| Block IIR | |
| Block IIRM | |
| Block IIF | |
| Block III | |
| Block IIIF | |
| Italics indicate future missions. Signs † indicate launch failures. | |
| ← 2003Orbital launches in 20042005 → | |
|---|---|
| January | |
| February | |
| March | |
| April | |
| May | |
| June | |
| July | |
| August | |
| September | |
| October | |
| November | |
| December | |
| Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses). | |
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