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Spacecraft information: OPS 7898
Launch Details
| Launched | 13 December 1971 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5682 |
| COSPAR ID | 1971-110E |
| Alternative names |
P/L 4 |
| Observing |
Current orbital elements
| Inclination | 69.990° |
| Eccentricity | 0.00073 |
| RA ascending node | 0.180 hr |
| Argument perigee | 6.433° |
| Mean anomaly | 353.685° |
| Orbital period | 104.755 min |
| Epoch of osculation | 26 Dec 2025, 09:38 |
Derived Quantities
| Min Altitude | 984.8 km |
| Mean Altitude | 990.1 km |
| Peak Altitude | 995.4 km |
Orbital History
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