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Spacecraft information: THOR DELTA 1 R/B
Launch Details
| Launched | 5 October 1981 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 12889 |
| COSPAR ID | 1981-100C |
| Observing |
Current orbital elements
| Inclination | 99.909° |
| Eccentricity | 0.13068 |
| RA ascending node | 17.088 hr |
| Argument perigee | 262.659° |
| Mean anomaly | 285.991° |
| Orbital period | 118.027 min |
| Epoch of osculation | 26 Dec 2025, 12:28 |
Derived Quantities
| Min Altitude | 557.8 km |
| Mean Altitude | 1599.4 km |
| Peak Altitude | 2641.0 km |
Orbital History
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