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Spacecraft information: 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 | 12.611° |
| Eccentricity | 0.00004 |
| RA ascending node | 1.181 hr |
| Argument perigee | 266.327° |
| Mean anomaly | 282.008° |
| Orbital period | 1435.962 min |
| Epoch of osculation | 14 Dec 2025, 11:28 |
Derived Quantities
| Min Altitude | 35789.4 km |
| Mean Altitude | 35791.1 km |
| Peak Altitude | 35792.8 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.