Spacecraft information: UFO 10
| Launched | 22 November 1999 |
| Flight ended | – |
| Status | Operational |
| Categories |
Geostationary
Active satellites |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 25967 |
| COSPAR ID | 1999-063A |
| Alternative names |
USA 146 |
| Observing |
Current orbital elements
| Inclination | 9.844° |
| Eccentricity | 0.00067 |
| RA ascending node | 1.878 hr |
| Argument perigee | 241.341° |
| Mean anomaly | 119.427° |
| Orbital period | 1436.067 min |
| Epoch of osculation | 14 Dec 2025, 21:52 |
Derived Quantities
| Min Altitude | 35764.9 km |
| Mean Altitude | 35793.1 km |
| Peak Altitude | 35821.4 km |
Launched alongside
ATLAS 2A CENTAUR R/BOrbital History
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