Orbital elements of SL-6 R/B(2)
| Launched | 14 February 1991 | 
| Flight ended | – | 
| Launch site | Plesetsk Missile and Space Complex, Russia | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 21121 | 
| Date fetched  | 
                    Epoch osculation  | 
                    Inc. [°]  | 
                    Ecc. | RA asc node [hr]  | 
                    Arg Peri. [°]  | 
                    Mean anom [°]  | 
                    Mean motion [rev/day]  | 
                    Abs. mag  | 
                
| Date fetched  | 
                    Epoch osculation  | 
                    Inc. [°]  | 
                    Ecc. | RA asc node [hr]  | 
                    Arg Peri. [°]  | 
                    Mean anom [°]  | 
                    Mean motion [rev/day]  | 
                    Abs. mag  | 
                
| 2025 Nov 03 18:57 | 2025 Oct 30 14:38:47 | 64.6331 | 0.63807 | 12.4033 | 256.9389 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Nov 02 18:57 | 2025 Oct 28 04:20:20 | 64.6325 | 0.63803 | 12.4174 | 256.9761 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Nov 01 18:58 | 2025 Oct 28 04:20:20 | 64.6325 | 0.63803 | 12.4174 | 256.9761 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 31 18:57 | 2025 Oct 28 04:20:20 | 64.6325 | 0.63803 | 12.4174 | 256.9761 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 30 18:57 | 2025 Oct 28 04:20:20 | 64.6325 | 0.63803 | 12.4174 | 256.9761 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 29 18:57 | 2025 Oct 28 04:20:20 | 64.6325 | 0.63803 | 12.4174 | 256.9761 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 27 18:57 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 26 18:57 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 25 17:57 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 24 17:57 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 22 17:56 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 21 17:56 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 20 17:56 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 19 17:56 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 | 
| 2025 Oct 18 17:56 | 2025 Oct 09 17:11:40 | 64.6323 | 0.63768 | 12.5247 | 257.2585 | 29.2534 | 2.05800 | 5.243 |