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Spacecraft information: ATLAS CENTAUR R/B
Launch Details
| Launched | 22 May 1981 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 12497 |
| COSPAR ID | 1981-050B |
| Observing |
Current orbital elements
| Inclination | 23.944° |
| Eccentricity | 0.32646 |
| RA ascending node | 6.538 hr |
| Argument perigee | 333.643° |
| Mean anomaly | 12.893° |
| Orbital period | 164.012 min |
| Epoch of osculation | 02 Feb 2026, 10:04 |
Derived Quantities
| Min Altitude | 314.1 km |
| Mean Altitude | 3554.3 km |
| Peak Altitude | 6794.5 km |
Launched alongside
INTELSAT 501Orbital History
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