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Spacecraft information: USA 143
Launch Details
| Launched | 29 April 1999 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 25724 |
| COSPAR ID | 1999-023A |
| Alternative names |
MILSTAR-2 1 |
| Observing |
Current orbital elements
| Inclination | 28.220° |
| Eccentricity | 0.21315 |
| RA ascending node | 5.731 hr |
| Argument perigee | 50.368° |
| Mean anomaly | 326.640° |
| Orbital period | 153.599 min |
| Epoch of osculation | 05 May 2026, 08:57 |
Derived Quantities
| Min Altitude | 1104.5 km |
| Mean Altitude | 3129.6 km |
| Peak Altitude | 5154.7 km |
Launched alongside
TITAN 4B CENTAUR R/BOrbital History
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