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Spacecraft information: SL-8 DEB
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 | 18512 |
| COSPAR ID | 1977-119E |
| Observing |
Current orbital elements
| Inclination | 74.025° |
| Eccentricity | 0.00058 |
| RA ascending node | 1.101 hr |
| Argument perigee | 227.280° |
| Mean anomaly | 284.946° |
| Orbital period | 95.821 min |
| Epoch of osculation | 20 Mar 2026, 06:00 |
Derived Quantities
| Min Altitude | 561.3 km |
| Mean Altitude | 565.4 km |
| Peak Altitude | 569.4 km |
Orbital History
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