| Official name | SL-12 R/B(AUX MOTOR) |
| Alternative name | Proton-K/DM-2 ullage motor (SOZ) |
| Cospar ID | 1985-042F |
| Norad ID | 15774 |
| Launch date | 1985-05-30 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-DM-2 |
| RCS size | MEDIUM |
| Decay date | ON ORBIT |
| Period (min) | 101.04 |
| Inclination (deg) | 66.59 |
| Perigee (km) | 786 |
| Apogee (km) | 830 |
| Eccentricity | 0.0272277227722772 |
| Mean motion (revs. per day) | 14.2517814726841 |
| Semi-Major axis (km) | 7186.135 |
| Raan (deg) | 333.3014 |
| Arg of perigee (deg) | 232.3326 |
| Shape | Cyl |
| Mass (kg) | 55.5 |
| Diameter (m) | 0.6 |
| Height (m) | 1.1 |
| Span (m^2) | 1.1 |
