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COSMOS 939
Launch Details
| Launched | 23 August 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10282 |
| COSPAR ID | 1977-079A |
| Observing |
Current orbital elements
| Inclination | 74.022° |
| Eccentricity | 0.00188 |
| RA ascending node | 6.025 hr |
| Argument perigee | 93.398° |
| Mean anomaly | 322.917° |
| Orbital period | 114.806 min |
| Epoch of osculation | 23 Oct 2025, 11:25 |
Derived Quantities
| Min Altitude | 1439.0 km |
| Mean Altitude | 1453.7 km |
| Peak Altitude | 1468.5 km |
Orbital History
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