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Spacecraft information: COSMOS 1287
Launch Details
| Launched | 5 August 1981 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12636 |
| COSPAR ID | 1981-074A |
| Observing |
Current orbital elements
| Inclination | 74.034° |
| Eccentricity | 0.00311 |
| RA ascending node | 10.072 hr |
| Argument perigee | 309.605° |
| Mean anomaly | 50.225° |
| Orbital period | 115.723 min |
| Epoch of osculation | 27 Jul 2026, 06:03 |
Derived Quantities
| Min Altitude | 1470.9 km |
| Mean Altitude | 1495.3 km |
| Peak Altitude | 1519.8 km |
Launched alongside
COSMOS 1288 COSMOS 1289 COSMOS 1290 COSMOS 1291 COSMOS 1292 COSMOS 1293 COSMOS 1294 SL-8 R/BOrbital History
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