Spacecraft information: OV1-4
| Launched | 29 March 1966 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 2121 |
| COSPAR ID | 1966-025A |
| Observing |
Current orbital elements
| Inclination | 144.502° |
| Eccentricity | 0.00827 |
| RA ascending node | 9.592 hr |
| Argument perigee | 111.065° |
| Mean anomaly | 249.890° |
| Orbital period | 103.799 min |
| Epoch of osculation | 12 Dec 2025, 05:22 |
Derived Quantities
| Min Altitude | 884.7 km |
| Mean Altitude | 945.3 km |
| Peak Altitude | 1005.8 km |
Orbital History
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