| Official name | SL-6 R/B(2) |
| Alternative name | Blok-ML (Molniya-M Blok-ML) |
| Cospar ID | 1987-008D |
| Norad ID | 17333 |
| Launch date | 1987-01-22 |
| Launch site | PKMTR |
| Launch vehicle | Molniya-M (Blok-ML) |
| RCS size | LARGE |
| Decay date | ON ORBIT |
| Period (min) | 730.67 |
| Inclination (deg) | 63.71 |
| Perigee (km) | 1096 |
| Apogee (km) | 39892 |
| Eccentricity | 0.946520932955987 |
| Mean motion (revs. per day) | 1.97079392885981 |
| Semi-Major axis (km) | 26872.135 |
| Raan (deg) | 89.064 |
| Arg of perigee (deg) | 250.818 |
| Shape | Cyl |
| Mass (kg) | 891.97 |
| Diameter (m) | 2.58 |
| Height (m) | 2.3 |
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