| Official name | SL-12 R/B(AUX MOTOR) |
| Alternative name | Proton-K/DM-2 ullage motor (SOZ) |
| Cospar ID | 1987-109E |
| Norad ID | 18719 |
| Launch date | 1987-12-27 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-DM-2 |
| RCS size | LARGE |
| Decay date | 2000-12-20 |
| Shape | Cyl |
| Mass (kg) | 55.5 |
| Diameter (m) | 0.6 |
| Height (m) | 1.1 |
| Span (m^2) | 1.1 |






