Orbital elements of COSMOS 2123 & RS-12/13
| Launched | 4 February 1991 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21089 |
| 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 11:50:44 | 82.9222 | 0.00284 | 3.1248 | 205.6049 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 16 18:57 | 2026 Mar 15 11:50:44 | 82.9222 | 0.00284 | 3.1248 | 205.6049 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 15 18:56 | 2026 Mar 15 11:50:44 | 82.9222 | 0.00284 | 3.1248 | 205.6049 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 14 18:56 | 2026 Mar 10 11:19:14 | 82.9213 | 0.00281 | 3.3735 | 220.0304 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 13 18:57 | 2026 Mar 10 11:19:14 | 82.9213 | 0.00281 | 3.3735 | 220.0304 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 12 18:57 | 2026 Mar 10 11:19:14 | 82.9213 | 0.00281 | 3.3735 | 220.0304 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 11 18:56 | 2026 Mar 10 11:19:14 | 82.9213 | 0.00281 | 3.3735 | 220.0304 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 10 18:56 | 2026 Mar 10 11:19:14 | 82.9213 | 0.00281 | 3.3735 | 220.0304 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 09 18:56 | 2026 Mar 04 12:03:51 | 82.9202 | 0.00279 | 3.6692 | 237.2831 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 08 18:57 | 2026 Mar 04 12:03:51 | 82.9202 | 0.00279 | 3.6692 | 237.2831 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 07 18:57 | 2026 Mar 04 12:03:51 | 82.9202 | 0.00279 | 3.6692 | 237.2831 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 06 18:56 | 2026 Mar 04 12:03:51 | 82.9202 | 0.00279 | 3.6692 | 237.2831 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 05 18:56 | 2026 Mar 04 12:03:51 | 82.9202 | 0.00279 | 3.6692 | 237.2831 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 04 18:57 | 2026 Mar 04 12:03:51 | 82.9202 | 0.00279 | 3.6692 | 237.2831 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 03 18:56 | 2026 Feb 26 12:51:37 | 82.9194 | 0.00277 | 3.9648 | 254.6690 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 02 18:57 | 2026 Feb 26 12:51:37 | 82.9194 | 0.00277 | 3.9648 | 254.6690 | 279.0782 | 13.74885 | 6.243 |
| 2026 Mar 01 18:57 | 2026 Feb 26 12:51:37 | 82.9194 | 0.00277 | 3.9648 | 254.6690 | 279.0782 | 13.74885 | 6.243 |
| 2026 Feb 28 18:56 | 2026 Feb 26 12:51:37 | 82.9194 | 0.00277 | 3.9648 | 254.6690 | 279.0782 | 13.74885 | 6.243 |
| 2026 Feb 27 19:05 | 2026 Feb 26 12:51:37 | 82.9194 | 0.00277 | 3.9648 | 254.6690 | 279.0782 | 13.74885 | 6.243 |
| 2026 Feb 26 20:45 | 2026 Feb 26 12:51:37 | 82.9194 | 0.00277 | 3.9648 | 254.6690 | 279.0782 | 13.74885 | 6.243 |