Navstar 57
-GPS Satellite
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 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 soon.)
Satellite Information |
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| Name | Navstar 57 |
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| Organization | GPS |
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| Country | United States |
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| Continent | United States |
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| Manufacturer | Lockheed Martin |
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| Type | Satellite |
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| Launch Date | September 26, 2005 |
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| Launch Site | Cape Canaveral, United States |
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| Launch Vehicle | Delta II |
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| Mission Duration | 10 years (planned) |
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| Launch Mass | 2032 Kg (4480 Lb) |
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| Orbit | Medium Earth Orbit |
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| Apogee Altitude | 20,222 Km (12,565 mi) |
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| Perigee Altitude | 20,140 Km (12,510 mi) |
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| Satellite Block | GPS Block IIRM |
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| Period | 717.92 minutes |
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| Pseudo Random Noise Code | 17 |
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| Inclination Angle | 55 Deg |
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| COSPAR ID | 2005-038A |
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| SATCAT Number | 28874 |
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| Other Names | 28874, USA 183, GPS 2R-M1, GPS 2R-14 |
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| Status | Operational |
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