Navstar 54
-GPS Satellite
Navstar 54, also known as USA 177 and as GPS 2R-11 is an American navigational satellite in the GPS fleet. It was launched by a Delta 2 rocket from Cape Canaveral on 20 March 2004. It will take Slot 3 in Plane C, replacing the aging GPS 2A-19. The fleet consists of 24 operational satellites (plus a few spares) located in six (inertial) planes with four slots in each.
Satellite Information |
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| Name | Navstar 54 |
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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 | March 20, 2004 |
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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 | 20,271 Km (12,596 mi) |
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| Perigee Altitude | 20,095 kilometres (12,486 mi) |
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| Satellite Block | GPS Block IIR |
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| Period | 718 minutes |
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| Pseudo Random Noise Code | 19 |
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| Inclination Angle | 55 Deg |
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| COSPAR ID | 2004-009A |
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| SATCAT Number | 28190 |
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| Other Names | GPS 2R-11, 28190, USA 177 |
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| Status | Operational |
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