Spacecraft information: OPS 7898
| Launched | 13 December 1971 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5681 |
| COSPAR ID | 1971-110D |
| Alternative names |
P/L 3 |
| Observing |
Current orbital elements
| Inclination | 69.990° |
| Eccentricity | 0.00069 |
| RA ascending node | 0.969 hr |
| Argument perigee | 14.896° |
| Mean anomaly | 345.233° |
| Orbital period | 104.756 min |
| Epoch of osculation | 20 Dec 2025, 12:09 |
Derived Quantities
| Min Altitude | 985.1 km |
| Mean Altitude | 990.2 km |
| Peak Altitude | 995.2 km |
Orbital History
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