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USA 159
Launch Details
| Launched | 5 August 2001 |
| Flight ended | – |
| Status | Operational |
| Categories |
Geostationary
Active satellites |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 26880 |
| COSPAR ID | 2001-033A |
| Alternative names |
DSP 21 |
| Observing |
Current orbital elements
| Inclination | 12.454° |
| Eccentricity | 0.00011 |
| RA ascending node | 1.256 hr |
| Argument perigee | 218.099° |
| Mean anomaly | 142.990° |
| Orbital period | 1436.114 min |
| Epoch of osculation | 01 Jul 2025, 09:57 |
Derived Quantities
| Min Altitude | 35789.6 km |
| Mean Altitude | 35794.1 km |
| Peak Altitude | 35798.6 km |
Orbital History
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