| Official name | SL-12 R/B |
| Alternative name | Proton-K 8S812 (Proton-K/D) |
| Cospar ID | 1968-101C |
| Norad ID | 3537 |
| Launch date | 1968-11-10 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-D |
| RCS size | UNKNOWN |
| Decay date | 1968-11-13 |
| Shape | Cyl |
| Mass (kg) | 4147.67 |
| Diameter (m) | 4.15 |
| Height (m) | 4.11 |
| Span (m^2) | 4.15 |






