Orbital elements of SL-8 R/B
| Launched | 4 February 1991 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21090 |
| 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 |
| 2026 Mar 17 18:56 | 2026 Mar 15 08:19:26 | 82.9237 | 0.00219 | 1.3460 | 107.0202 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 16 18:57 | 2026 Mar 15 08:19:26 | 82.9237 | 0.00219 | 1.3460 | 107.0202 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 15 18:56 | 2026 Mar 15 08:19:26 | 82.9237 | 0.00219 | 1.3460 | 107.0202 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 14 18:56 | 2026 Mar 10 07:57:56 | 82.9230 | 0.00217 | 1.5950 | 120.3169 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 13 18:57 | 2026 Mar 10 07:57:56 | 82.9230 | 0.00217 | 1.5950 | 120.3169 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 12 18:57 | 2026 Mar 10 07:57:56 | 82.9230 | 0.00217 | 1.5950 | 120.3169 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 11 18:56 | 2026 Mar 10 07:57:56 | 82.9230 | 0.00217 | 1.5950 | 120.3169 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 10 18:56 | 2026 Mar 10 07:57:56 | 82.9230 | 0.00217 | 1.5950 | 120.3169 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 09 18:56 | 2026 Mar 04 08:55:52 | 82.9218 | 0.00215 | 1.8911 | 136.1024 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 08 18:57 | 2026 Mar 04 08:55:52 | 82.9218 | 0.00215 | 1.8911 | 136.1024 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 07 18:57 | 2026 Mar 04 08:55:52 | 82.9218 | 0.00215 | 1.8911 | 136.1024 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 06 18:56 | 2026 Mar 04 08:55:52 | 82.9218 | 0.00215 | 1.8911 | 136.1024 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 05 18:56 | 2026 Mar 04 08:55:52 | 82.9218 | 0.00215 | 1.8911 | 136.1024 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 04 18:57 | 2026 Mar 04 08:55:52 | 82.9218 | 0.00215 | 1.8911 | 136.1024 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 03 18:56 | 2026 Feb 26 09:53:47 | 82.9204 | 0.00211 | 2.1872 | 152.1942 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 02 18:57 | 2026 Feb 26 09:53:47 | 82.9204 | 0.00211 | 2.1872 | 152.1942 | 253.3355 | 13.76671 | 4.743 |
| 2026 Mar 01 18:57 | 2026 Feb 26 09:53:47 | 82.9204 | 0.00211 | 2.1872 | 152.1942 | 253.3355 | 13.76671 | 4.743 |
| 2026 Feb 28 18:56 | 2026 Feb 26 09:53:47 | 82.9204 | 0.00211 | 2.1872 | 152.1942 | 253.3355 | 13.76671 | 4.743 |
| 2026 Feb 27 19:05 | 2026 Feb 26 09:53:47 | 82.9204 | 0.00211 | 2.1872 | 152.1942 | 253.3355 | 13.76671 | 4.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 09:53:47 | 82.9204 | 0.00211 | 2.1872 | 152.1942 | 253.3355 | 13.76671 | 4.743 |