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UFO 8
Launch Details
| Launched | 15 March 1998 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 25258 |
| COSPAR ID | 1998-016A |
| Alternative names |
USA 138 |
| Observing |
Current orbital elements
| Inclination | 10.796° |
| Eccentricity | 0.00055 |
| RA ascending node | 1.624 hr |
| Argument perigee | 231.317° |
| Mean anomaly | 317.913° |
| Orbital period | 1435.094 min |
| Epoch of osculation | 15 Sep 2025, 06:04 |
Derived Quantities
| Min Altitude | 35751.0 km |
| Mean Altitude | 35774.1 km |
| Peak Altitude | 35797.2 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.
Launched alongside
ATLAS 2 CENTAUR R/B