A Block IIRM GPS satellite
|Operator||US Air Force|
|Major contractors||Lockheed Martin|
|Bus||GPS Block IIRM (AS-4000)|
|Launch date||26 September 2005, 03:37:00UTC|
|Carrier rocket||Delta II 7925-9.5 D313|
|Launch site||Cape Canaveral SLC-17A|
|Mission duration||10 years (planned)|
|Mass||2,032 kilograms (4,480 lb)|
|Regime||Semisynchronous medium Earth|
|Apoapsis||20,222 kilometres (12,565 mi)|
|Periapsis||20,140 kilometres (12,510 mi)|
|Orbital period||717.92 minutes|
USA-183, also known as GPS IIR-14(M), GPS IIRM-1 and GPS SVN-53, is an American navigation satellite which forms part of the Global Positioning System. It was the first of eight Block IIRM satellites to be launched, and the fourteenth of twenty one Block IIR satellites overall. It was built by Lockheed Martin, using the AS-4000 satellite bus.
USA-183 was launched at 03:37:00 UTC on 26 September 2005, atop a Delta II carrier rocket, flight number D313, flying in the 7925-9.5 configuration. The launch took place from Space Launch Complex 17A at the Cape Canaveral Air Force Station, and placed USA-183 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37FM apogee motor.
By 25 November 2005, USA-183 was in an orbit with a perigee of 20,140 kilometres (12,510 mi), an apogee of 20,222 kilometres (12,565 mi), a period of 717.92 minutes, and 55 degrees of inclination to the equator. It is used to broadcast the PRN 17 signal, and operates in slot 4 of plane C 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 2012 it remains in service.
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- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 11 July 2012.
- "Navstar 57". US National Space Science Data Center. 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. Retrieved 11 July 2012.
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