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Spacecraft information: SL-8 R/B
Launch Details
| Launched | 15 December 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10521 |
| COSPAR ID | 1977-119B |
| Observing |
Current orbital elements
| Inclination | 74.027° |
| Eccentricity | 0.00215 |
| RA ascending node | 18.028 hr |
| Argument perigee | 246.730° |
| Mean anomaly | 113.159° |
| Orbital period | 99.838 min |
| Epoch of osculation | 20 Dec 2025, 12:33 |
Derived Quantities
| Min Altitude | 742.6 km |
| Mean Altitude | 757.9 km |
| Peak Altitude | 773.3 km |
Orbital History
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