| Official name | SL-12 R/B(2) |
| Alternative name | Blok-DM-2 (Proton-K/DM-2) |
| Cospar ID | 1991-064B |
| Norad ID | 21703 |
| Launch date | 1991-09-13 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-DM-2 |
| RCS size | LARGE |
| Decay date | ON ORBIT |
| Period (min) | 1441.42 |
| Inclination (deg) | 13.64 |
| Perigee (km) | 35882 |
| Apogee (km) | 35899 |
| Eccentricity | 0.000236831473509703 |
| Mean motion (revs. per day) | 0.999014860346048 |
| Semi-Major axis (km) | 42268.635 |
| Raan (deg) | 342.738 |
| Arg of perigee (deg) | 41.2679 |
| Shape | Cyl |
| Mass (kg) | 2120.91 |
| Diameter (m) | 3.7 |
| Height (m) | 6.27 |
| Span (m^2) | 6.27 |
