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 |
| 2025 Dec 07 18:56 | 2025 Dec 06 22:56:46 | 82.9221 | 0.00302 | 8.0048 | 121.6330 | 359.7404 | 13.74875 | 6.243 |
| 2025 Dec 06 18:56 | 2025 Dec 02 12:08:03 | 82.9217 | 0.00300 | 8.2251 | 133.5762 | 359.7404 | 13.74875 | 6.243 |
| 2025 Dec 05 18:57 | 2025 Dec 02 12:08:03 | 82.9217 | 0.00300 | 8.2251 | 133.5762 | 359.7404 | 13.74875 | 6.243 |
| 2025 Dec 04 18:57 | 2025 Dec 02 12:08:03 | 82.9217 | 0.00300 | 8.2251 | 133.5762 | 359.7404 | 13.74875 | 6.243 |
| 2025 Dec 03 18:56 | 2025 Dec 02 12:08:03 | 82.9217 | 0.00300 | 8.2251 | 133.5762 | 359.7404 | 13.74875 | 6.243 |
| 2025 Dec 02 18:56 | 2025 Dec 02 12:08:03 | 82.9217 | 0.00300 | 8.2251 | 133.5762 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 30 18:57 | 2025 Nov 25 10:40:33 | 82.9206 | 0.00297 | 8.5747 | 152.6156 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 29 18:56 | 2025 Nov 25 10:40:33 | 82.9206 | 0.00297 | 8.5747 | 152.6156 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 28 18:57 | 2025 Nov 25 10:40:33 | 82.9206 | 0.00297 | 8.5747 | 152.6156 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 27 18:57 | 2025 Nov 25 10:40:33 | 82.9206 | 0.00297 | 8.5747 | 152.6156 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 26 18:57 | 2025 Nov 25 10:40:33 | 82.9206 | 0.00297 | 8.5747 | 152.6156 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 25 18:57 | 2025 Nov 25 10:40:33 | 82.9206 | 0.00297 | 8.5747 | 152.6156 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 24 18:56 | 2025 Nov 19 23:58:33 | 82.9207 | 0.00294 | 8.8444 | 167.5339 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 23 18:57 | 2025 Nov 19 23:58:33 | 82.9207 | 0.00294 | 8.8444 | 167.5339 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 21 18:57 | 2025 Nov 19 23:58:33 | 82.9207 | 0.00294 | 8.8444 | 167.5339 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 20 18:56 | 2025 Nov 19 23:58:33 | 82.9207 | 0.00294 | 8.8444 | 167.5339 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 18 18:57 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 16 18:58 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 15 18:57 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 13 18:56 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 12 18:57 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 11 18:55 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |
| 2025 Nov 10 18:57 | 2025 Nov 08 18:28:37 | 82.9208 | 0.00286 | 9.4004 | 198.9260 | 359.7404 | 13.74875 | 6.243 |