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Spacecraft information: UFO 9
Launch Details
| Launched | 19 October 1998 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 25501 |
| COSPAR ID | 1998-058A |
| Alternative names |
USA 140 |
| Observing |
Current orbital elements
| Inclination | 11.380° |
| Eccentricity | 0.00097 |
| RA ascending node | 1.396 hr |
| Argument perigee | 354.915° |
| Mean anomaly | 201.852° |
| Orbital period | 1466.712 min |
| Epoch of osculation | 19 Aug 2026, 05:36 |
Derived Quantities
| Min Altitude | 36349.6 km |
| Mean Altitude | 36390.9 km |
| Peak Altitude | 36432.2 km |
Launched alongside
ATLAS 2A CENTAUR R/BOrbital History
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