Spacecraft information: SL-8 R/B
| Launched | 30 June 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10121 |
| COSPAR ID | 1977-059B |
| Observing |
Current orbital elements
| Inclination | 74.046° |
| Eccentricity | 0.00192 |
| RA ascending node | 2.695 hr |
| Argument perigee | 321.042° |
| Mean anomaly | 38.935° |
| Orbital period | 100.184 min |
| Epoch of osculation | 10 Mar 2026, 08:34 |
Derived Quantities
| Min Altitude | 760.7 km |
| Mean Altitude | 774.4 km |
| Peak Altitude | 788.1 km |
Orbital History
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