Orbital elements of SL-8 R/B
| Launched | 15 December 1977 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10521 |
| 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 Sep 12 17:57 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 11 17:57 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 10 17:56 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 08 17:57 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 07 17:56 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 06 20:41 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 03 17:57 | 2025 Sep 03 02:37:18 | 74.0257 | 0.00195 | 7.4402 | 114.7589 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 02 17:56 | 2025 Aug 27 22:27:23 | 74.0264 | 0.00196 | 8.2039 | 128.3759 | 245.5596 | 14.42221 | 4.743 |
| 2025 Sep 01 17:56 | 2025 Aug 27 22:27:23 | 74.0264 | 0.00196 | 8.2039 | 128.3759 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 31 17:56 | 2025 Aug 27 22:27:23 | 74.0264 | 0.00196 | 8.2039 | 128.3759 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 30 17:56 | 2025 Aug 27 22:27:23 | 74.0264 | 0.00196 | 8.2039 | 128.3759 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 29 17:56 | 2025 Aug 27 22:27:23 | 74.0264 | 0.00196 | 8.2039 | 128.3759 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 28 17:57 | 2025 Aug 27 22:27:23 | 74.0264 | 0.00196 | 8.2039 | 128.3759 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 27 17:56 | 2025 Aug 23 03:35:10 | 74.0268 | 0.00197 | 8.7959 | 138.8575 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 26 17:56 | 2025 Aug 23 03:35:10 | 74.0268 | 0.00197 | 8.7959 | 138.8575 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 25 17:56 | 2025 Aug 23 03:35:10 | 74.0268 | 0.00197 | 8.7959 | 138.8575 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 24 17:56 | 2025 Aug 23 03:35:10 | 74.0268 | 0.00197 | 8.7959 | 138.8575 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 23 17:56 | 2025 Aug 23 03:35:10 | 74.0268 | 0.00197 | 8.7959 | 138.8575 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 22 17:56 | 2025 Aug 18 12:02:43 | 74.0273 | 0.00199 | 9.3707 | 149.0038 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 20 17:56 | 2025 Aug 18 12:02:43 | 74.0273 | 0.00199 | 9.3707 | 149.0038 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 19 17:56 | 2025 Aug 18 12:02:43 | 74.0273 | 0.00199 | 9.3707 | 149.0038 | 245.5596 | 14.42221 | 4.743 |
| 2025 Aug 18 17:56 | 2025 Aug 18 12:02:43 | 74.0273 | 0.00199 | 9.3707 | 149.0038 | 245.5596 | 14.42221 | 4.743 |