| Official name | SL-6 R/B(2) | 
| Alternative name | Blok-ML (Molniya-M Blok-ML) | 
| Cospar ID | 1979-048D | 
| Norad ID | 11554 | 
| Launch date | 1979-06-05 | 
| Launch site | PKMTR | 
| Launch vehicle | Molniya-M (Blok-ML) | 
| RCS size | LARGE | 
| Decay date | 1990-08-05 | 
| Shape | Cyl | 
| Mass (kg) | 891.97 | 
| Diameter (m) | 2.58 | 
| Height (m) | 2.3 | 





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