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EXPLORER 31
Launch Details
| Launched | 28 November 1965 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 1806 |
| COSPAR ID | 1965-098B |
| Alternative names |
ISIS-X |
| Observing |
Current orbital elements
| Inclination | 79.770° |
| Eccentricity | 0.14289 |
| RA ascending node | 8.713 hr |
| Argument perigee | 244.843° |
| Mean anomaly | 99.794° |
| Orbital period | 119.284 min |
| Epoch of osculation | 17 Oct 2024, 12:25 |
Derived Quantities
| Min Altitude | 508.9 km |
| Mean Altitude | 1655.9 km |
| Peak Altitude | 2802.8 km |
Orbital History
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