| Official name | SL-12 R/B(2) |
| Alternative name | Blok-DM-2 (Proton-K/DM-2) |
| Cospar ID | 1990-110F |
| Norad ID | 21011 |
| Launch date | 1990-12-08 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-DM-2 |
| RCS size | LARGE |
| Decay date | ON ORBIT |
| Period (min) | 675.23 |
| Inclination (deg) | 64.53 |
| Perigee (km) | 19102 |
| Apogee (km) | 19132 |
| Eccentricity | 0.000784641941727258 |
| Mean motion (revs. per day) | 2.13260666735779 |
| Semi-Major axis (km) | 25495.135 |
| Raan (deg) | 95.9897 |
| Arg of perigee (deg) | 251.6804 |
| Shape | Cyl |
| Mass (kg) | 2120.91 |
| Diameter (m) | 3.7 |
| Height (m) | 6.27 |
| Span (m^2) | 6.27 |
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