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Spacecraft information: OPS 7350
Launch Details
| Launched | 15 March 1981 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 12339 |
| COSPAR ID | 1981-025A |
| Alternative names |
DSP 9 |
| Observing |
Current orbital elements
| Inclination | 8.297° |
| Eccentricity | 0.00187 |
| RA ascending node | 20.376 hr |
| Argument perigee | 293.855° |
| Mean anomaly | 68.408° |
| Orbital period | 1457.046 min |
| Epoch of osculation | 15 Mar 2026, 10:06 |
Derived Quantities
| Min Altitude | 36123.0 km |
| Mean Altitude | 36202.8 km |
| Peak Altitude | 36282.6 km |
Orbital History
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