| Official name | SL-12 PLAT |
| Alternative name | Proton-K/D fourth stage casing |
| Cospar ID | 1968-101B |
| Norad ID | 3536 |
| Launch date | 1968-11-10 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K Blok-D |
| RCS size | UNKNOWN |
| Decay date | 1968-11-12 |
| Shape | Cyl |
| Mass (kg) | 792.86 |
| Diameter (m) | 3.7 |
| Height (m) | 4 |
| Span (m^2) | 4 |






