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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 | 11.084° |
| Eccentricity | 0.00105 |
| RA ascending node | 1.484 hr |
| Argument perigee | 328.901° |
| Mean anomaly | 39.148° |
| Orbital period | 1466.765 min |
| Epoch of osculation | 12 Dec 2025, 03:46 |
Derived Quantities
| Min Altitude | 36347.1 km |
| Mean Altitude | 36391.9 km |
| Peak Altitude | 36436.7 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 2A CENTAUR R/B