| Official name | SL-12 R/B(AUX MOTOR) |
| Alternative name | Proton-K/DM-2 ullage motor (SOZ) |
| Cospar ID | 1984-095H |
| Norad ID | 15266 |
| Launch date | 1984-09-04 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-DM-2 |
| RCS size | MEDIUM |
| Decay date | ON ORBIT |
| Period (min) | 294.52 |
| Inclination (deg) | 51.9 |
| Perigee (km) | 294 |
| Apogee (km) | 16277 |
| Eccentricity | 0.964516323698027 |
| Mean motion (revs. per day) | 4.88931142197474 |
| Semi-Major axis (km) | 14663.635 |
| Raan (deg) | 223.5436 |
| Arg of perigee (deg) | 64.8256 |
| Shape | Cyl |
| Mass (kg) | 55.5 |
| Diameter (m) | 0.6 |
| Height (m) | 1.1 |
| Span (m^2) | 1.1 |
