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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 | 11.312° |
| Eccentricity | 0.00115 |
| RA ascending node | 1.418 hr |
| Argument perigee | 356.344° |
| Mean anomaly | 7.359° |
| Orbital period | 1466.758 min |
| Epoch of osculation | 22 Jun 2026, 15:35 |
Derived Quantities
| Min Altitude | 36342.4 km |
| Mean Altitude | 36391.8 km |
| Peak Altitude | 36441.1 km |
Launched alongside
ATLAS 2A CENTAUR R/BOrbital History
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