Orbital elements of SL-8 R/B
| Launched | 24 April 1970 | 
| Flight ended | – | 
| Launch site | Plesetsk Missile and Space Complex, Russia | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 4391 | 
| 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 Oct 31 18:57 | 2025 Oct 29 10:42:51 | 74.0293 | 0.00758 | 13.4547 | 167.0491 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 30 18:57 | 2025 Oct 29 10:42:51 | 74.0293 | 0.00758 | 13.4547 | 167.0491 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 29 18:57 | 2025 Oct 29 10:42:51 | 74.0293 | 0.00758 | 13.4547 | 167.0491 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 28 18:57 | 2025 Oct 23 12:47:47 | 74.0294 | 0.00759 | 13.9640 | 175.7183 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 27 18:57 | 2025 Oct 23 12:47:47 | 74.0294 | 0.00759 | 13.9640 | 175.7183 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 26 18:57 | 2025 Oct 23 12:47:47 | 74.0294 | 0.00759 | 13.9640 | 175.7183 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 25 17:57 | 2025 Oct 23 12:47:47 | 74.0294 | 0.00759 | 13.9640 | 175.7183 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 24 17:57 | 2025 Oct 23 12:47:47 | 74.0294 | 0.00759 | 13.9640 | 175.7183 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 22 17:56 | 2025 Oct 18 06:24:53 | 74.0290 | 0.00760 | 14.4175 | 183.4339 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 21 17:56 | 2025 Oct 18 06:24:53 | 74.0290 | 0.00760 | 14.4175 | 183.4339 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 20 17:56 | 2025 Oct 18 06:24:53 | 74.0290 | 0.00760 | 14.4175 | 183.4339 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 19 17:56 | 2025 Oct 18 06:24:53 | 74.0290 | 0.00760 | 14.4175 | 183.4339 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 18 17:56 | 2025 Oct 18 06:24:53 | 74.0290 | 0.00760 | 14.4175 | 183.4339 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 17 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 16 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 15 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 14 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 12 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 11 17:57 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 09 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 08 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 07 17:56 | 2025 Oct 07 07:41:17 | 74.0275 | 0.00762 | 15.3605 | 199.4425 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 05 17:56 | 2025 Sep 26 04:48:03 | 74.0257 | 0.00764 | 16.3186 | 215.6753 | 6.9857 | 12.34988 | 7.243 | 
| 2025 Oct 04 17:57 | 2025 Sep 26 04:48:03 | 74.0257 | 0.00764 | 16.3186 | 215.6753 | 6.9857 | 12.34988 | 7.243 |