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EXPLORER 20
Launch Details
| Launched | 24 August 1964 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 870 |
| COSPAR ID | 1964-051A |
| Observing |
Current orbital elements
| Inclination | 79.898° |
| Eccentricity | 0.00962 |
| RA ascending node | 14.532 hr |
| Argument perigee | 286.783° |
| Mean anomaly | 72.278° |
| Orbital period | 103.470 min |
| Epoch of osculation | 15 Sep 2025, 04:37 |
Derived Quantities
| Min Altitude | 859.5 km |
| Mean Altitude | 929.8 km |
| Peak Altitude | 1000.0 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.