Spacecraft information: SL-8 DEB
| 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 | 18512 |
| COSPAR ID | 1977-119E |
| Observing |
Current orbital elements
| Inclination | 74.023° |
| Eccentricity | 0.00050 |
| RA ascending node | 9.046 hr |
| Argument perigee | 278.939° |
| Mean anomaly | 146.634° |
| Orbital period | 95.676 min |
| Epoch of osculation | 15 Jul 2026, 21:38 |
Derived Quantities
| Min Altitude | 554.9 km |
| Mean Altitude | 558.4 km |
| Peak Altitude | 561.9 km |
Orbital History
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