Spacecraft information: COSMOS 1251
| Launched | 5 March 1981 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12321 |
| COSPAR ID | 1981-022B |
| Observing |
Current orbital elements
| Inclination | 74.031° |
| Eccentricity | 0.00437 |
| RA ascending node | 19.354 hr |
| Argument perigee | 45.375° |
| Mean anomaly | 66.106° |
| Orbital period | 114.605 min |
| Epoch of osculation | 31 Dec 2025, 12:42 |
Derived Quantities
| Min Altitude | 1410.4 km |
| Mean Altitude | 1444.6 km |
| Peak Altitude | 1478.8 km |
Launched alongside
COSMOS 1250 COSMOS 1252 COSMOS 1253 COSMOS 1254 COSMOS 1255 COSMOS 1256 COSMOS 1257 SL-8 R/BOrbital History
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