Orbital elements of SL-8 R/B
| Launched | 15 June 1987 | 
| Flight ended | – | 
| Launch site | Plesetsk Missile and Space Complex, Russia | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 18121 | 
| 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 Nov 02 11:12:51 | 74.0056 | 0.01313 | 6.9785 | 93.9331 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Nov 02 18:57 | 2025 Oct 29 12:57:58 | 74.0048 | 0.01313 | 7.3094 | 99.5620 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Nov 01 18:58 | 2025 Oct 29 12:57:58 | 74.0048 | 0.01313 | 7.3094 | 99.5620 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 31 18:57 | 2025 Oct 29 12:57:58 | 74.0048 | 0.01313 | 7.3094 | 99.5620 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 30 18:57 | 2025 Oct 29 12:57:58 | 74.0048 | 0.01313 | 7.3094 | 99.5620 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 29 18:57 | 2025 Oct 29 12:57:58 | 74.0048 | 0.01313 | 7.3094 | 99.5620 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 28 18:57 | 2025 Oct 23 23:41:01 | 74.0045 | 0.01313 | 7.7775 | 107.5237 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 27 18:57 | 2025 Oct 23 23:41:01 | 74.0045 | 0.01313 | 7.7775 | 107.5237 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 26 18:57 | 2025 Oct 23 23:41:01 | 74.0045 | 0.01313 | 7.7775 | 107.5237 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 25 17:57 | 2025 Oct 23 23:41:01 | 74.0045 | 0.01313 | 7.7775 | 107.5237 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 24 17:57 | 2025 Oct 23 23:41:01 | 74.0045 | 0.01313 | 7.7775 | 107.5237 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 22 17:56 | 2025 Oct 18 06:32:26 | 74.0045 | 0.01313 | 8.2591 | 115.7034 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 21 17:56 | 2025 Oct 18 06:32:26 | 74.0045 | 0.01313 | 8.2591 | 115.7034 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 20 17:56 | 2025 Oct 18 06:32:26 | 74.0045 | 0.01313 | 8.2591 | 115.7034 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 19 17:56 | 2025 Oct 18 06:32:26 | 74.0045 | 0.01313 | 8.2591 | 115.7034 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 18 17:56 | 2025 Oct 18 06:32:26 | 74.0045 | 0.01313 | 8.2591 | 115.7034 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 17 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 16 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 15 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 14 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 12 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 11 17:57 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 09 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 08 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 | 
| 2025 Oct 07 17:56 | 2025 Oct 07 09:22:28 | 74.0059 | 0.01314 | 9.1761 | 131.2850 | 333.6662 | 12.22595 | 6.743 |