Orbital elements of SL-8 DEB
| Launched | 11 February 1991 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21158 |
| 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 18 17:56 | 2025 Sep 14 20:49:56 | 74.1001 | 0.01417 | 3.6734 | 99.6339 | 11.8602 | 12.13948 | – |
| 2025 Sep 15 17:56 | 2025 Sep 14 20:49:56 | 74.1001 | 0.01417 | 3.6734 | 99.6339 | 11.8602 | 12.13948 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 05:59:23 | 74.0985 | 0.01418 | 4.6312 | 116.0883 | 11.8602 | 12.13948 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 21:44:08 | 74.0983 | 0.01418 | 5.1542 | 125.0642 | 11.8602 | 12.13948 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 21:44:08 | 74.0983 | 0.01418 | 5.1542 | 125.0642 | 11.8602 | 12.13948 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 21:44:08 | 74.0983 | 0.01418 | 5.1542 | 125.0642 | 11.8602 | 12.13948 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 21:44:08 | 74.0983 | 0.01418 | 5.1542 | 125.0642 | 11.8602 | 12.13948 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 21:44:08 | 74.0983 | 0.01418 | 5.1542 | 125.0642 | 11.8602 | 12.13948 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 21:44:08 | 74.0983 | 0.01418 | 5.1542 | 125.0642 | 11.8602 | 12.13948 | – |
| 2025 Aug 27 17:56 | 2025 Aug 20 21:07:47 | 74.0984 | 0.01418 | 5.7333 | 135.0149 | 11.8602 | 12.13948 | – |
| 2025 Aug 26 17:56 | 2025 Aug 20 21:07:47 | 74.0984 | 0.01418 | 5.7333 | 135.0149 | 11.8602 | 12.13948 | – |
| 2025 Aug 25 17:56 | 2025 Aug 20 21:07:47 | 74.0984 | 0.01418 | 5.7333 | 135.0149 | 11.8602 | 12.13948 | – |
| 2025 Aug 24 17:56 | 2025 Aug 20 21:07:47 | 74.0984 | 0.01418 | 5.7333 | 135.0149 | 11.8602 | 12.13948 | – |
| 2025 Aug 23 17:56 | 2025 Aug 20 21:07:47 | 74.0984 | 0.01418 | 5.7333 | 135.0149 | 11.8602 | 12.13948 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 18:14:09 | 74.0987 | 0.01418 | 5.9906 | 139.4350 | 11.8602 | 12.13948 | – |