Orbital elements of COSMOS 2091
| Launched | 7 August 1990 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 20736 |
| 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 15 17:56 | 2025 Sep 15 03:47:40 | 82.5795 | 0.00042 | 9.5847 | 24.9559 | 128.8443 | 12.62551 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 04:36:34 | 82.5812 | 0.00045 | 10.0937 | 46.9926 | 128.8443 | 12.62551 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 19:59:29 | 82.5814 | 0.00047 | 10.3642 | 58.6403 | 128.8443 | 12.62551 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 19:59:29 | 82.5814 | 0.00047 | 10.3642 | 58.6403 | 128.8443 | 12.62551 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 19:59:29 | 82.5814 | 0.00047 | 10.3642 | 58.6403 | 128.8443 | 12.62551 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 19:59:29 | 82.5814 | 0.00047 | 10.3642 | 58.6403 | 128.8443 | 12.62551 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 19:59:29 | 82.5814 | 0.00047 | 10.3642 | 58.6403 | 128.8443 | 12.62551 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 19:59:29 | 82.5814 | 0.00047 | 10.3642 | 58.6403 | 128.8443 | 12.62551 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 05:57:10 | 82.5814 | 0.00048 | 10.5592 | 66.7632 | 128.8443 | 12.62551 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 05:57:10 | 82.5814 | 0.00048 | 10.5592 | 66.7632 | 128.8443 | 12.62551 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 05:57:10 | 82.5814 | 0.00048 | 10.5592 | 66.7632 | 128.8443 | 12.62551 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 05:57:10 | 82.5814 | 0.00048 | 10.5592 | 66.7632 | 128.8443 | 12.62551 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 05:57:10 | 82.5814 | 0.00048 | 10.5592 | 66.7632 | 128.8443 | 12.62551 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 22:18:13 | 82.5815 | 0.00048 | 10.7854 | 75.9944 | 128.8443 | 12.62551 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 22:18:13 | 82.5815 | 0.00048 | 10.7854 | 75.9944 | 128.8443 | 12.62551 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 22:18:13 | 82.5815 | 0.00048 | 10.7854 | 75.9944 | 128.8443 | 12.62551 | – |