Launch data:
| Designation | 15661 / 85033A |
| Launch date | 26 Apr 1985 |
| Launch site | B |
| Launch vehicle | Molniya-M (Blok-SO-L) |
| Mission | Scientific |
| Earth orbit: | |
| Perigee/Apogee | 5975 x 194734 km |
| Inclination | 76.76 deg |
| Period | 5783.7 min |
Prognoz 10 |
Russia |
Launch data:
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| Out of service: | Jan 1986 |
| Cause: | |
| Descent date: | 01 Jan 1993 12 Jan 1994 (#207) |
| Lifetime: |