Spacecraft information: EXPLORER 25
| Launched | 20 November 1964 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 932 |
| COSPAR ID | 1964-076B |
| Alternative names |
INJUN 4 |
| Observing |
Current orbital elements
| Inclination | 81.338° |
| Eccentricity | 0.11190 |
| RA ascending node | 10.824 hr |
| Argument perigee | 332.358° |
| Mean anomaly | 22.204° |
| Orbital period | 113.658 min |
| Epoch of osculation | 12 Dec 2025, 05:42 |
Derived Quantities
| Min Altitude | 531.8 km |
| Mean Altitude | 1401.5 km |
| Peak Altitude | 2271.2 km |
Orbital History
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