| Official name | SL-6 R/B(1) |
| Alternative name | Blok-I (Molniya-M Blok-2BL) |
| Cospar ID | 1979-077B |
| Norad ID | 11512 |
| Launch date | 1979-08-28 |
| Launch site | PKMTR |
| Launch vehicle | Molniya-M (Blok-2BL) |
| RCS size | UNKNOWN |
| Decay date | 1979-09-28 |
| Shape | Cyl |
| Mass (kg) | 1982.16 |
| Diameter (m) | 2.66 |
| Height (m) | 7.2 |
| Span (m^2) | 7.2 |






