Orbital elements of COSMOS 1261
| Launched | 30 March 1981 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12376 |
| 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 15 18:56 | 2026 Mar 11 10:00:24 | 68.7599 | 0.59106 | 6.3440 | 353.1477 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 14 18:56 | 2026 Mar 09 10:11:43 | 68.7570 | 0.59117 | 6.3519 | 353.1982 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 13 18:57 | 2026 Mar 09 10:11:43 | 68.7570 | 0.59117 | 6.3519 | 353.1982 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 12 18:57 | 2026 Mar 09 10:11:43 | 68.7570 | 0.59117 | 6.3519 | 353.1982 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 11 18:56 | 2026 Mar 09 10:11:43 | 68.7570 | 0.59117 | 6.3519 | 353.1982 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 10 18:56 | 2026 Mar 09 10:11:43 | 68.7570 | 0.59117 | 6.3519 | 353.1982 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 09 18:56 | 2026 Mar 02 22:48:49 | 68.7492 | 0.59151 | 6.3772 | 353.3622 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 08 18:57 | 2026 Mar 02 22:48:49 | 68.7492 | 0.59151 | 6.3772 | 353.3622 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 07 18:57 | 2026 Mar 02 22:48:49 | 68.7492 | 0.59151 | 6.3772 | 353.3622 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 06 18:56 | 2026 Mar 02 22:48:49 | 68.7492 | 0.59151 | 6.3772 | 353.3622 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 05 18:56 | 2026 Mar 02 22:48:49 | 68.7492 | 0.59151 | 6.3772 | 353.3622 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 04 18:57 | 2026 Mar 02 22:48:49 | 68.7492 | 0.59151 | 6.3772 | 353.3622 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 03 18:56 | 2026 Feb 22 23:34:38 | 68.7393 | 0.59193 | 6.4085 | 353.5634 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 02 18:57 | 2026 Feb 22 23:34:38 | 68.7393 | 0.59193 | 6.4085 | 353.5634 | 1.4892 | 2.00791 | 5.243 |
| 2026 Mar 01 18:57 | 2026 Feb 22 23:34:38 | 68.7393 | 0.59193 | 6.4085 | 353.5634 | 1.4892 | 2.00791 | 5.243 |
| 2026 Feb 28 18:56 | 2026 Feb 22 23:34:38 | 68.7393 | 0.59193 | 6.4085 | 353.5634 | 1.4892 | 2.00791 | 5.243 |
| 2026 Feb 27 19:05 | 2026 Feb 22 23:34:38 | 68.7393 | 0.59193 | 6.4085 | 353.5634 | 1.4892 | 2.00791 | 5.243 |
| 2026 Feb 26 20:45 | 2026 Feb 22 23:34:38 | 68.7393 | 0.59193 | 6.4085 | 353.5634 | 1.4892 | 2.00791 | 5.243 |