Orbital elements of COSMOS 1261 DEB
| Launched | 30 March 1981 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 35507 |
| 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 May 05 17:57 | 2026 May 03 15:01:06 | 61.8888 | 0.74091 | 20.3121 | 43.1087 | 355.4031 | 2.01923 | – |
| 2026 May 04 17:57 | 2026 Apr 29 15:55:50 | 61.9041 | 0.74081 | 20.3556 | 43.0356 | 355.4031 | 2.01923 | – |
| 2026 May 03 17:57 | 2026 Apr 29 15:55:50 | 61.9041 | 0.74081 | 20.3556 | 43.0356 | 355.4031 | 2.01923 | – |
| 2026 May 02 17:57 | 2026 Apr 29 15:55:50 | 61.9041 | 0.74081 | 20.3556 | 43.0356 | 355.4031 | 2.01923 | – |
| 2026 May 01 17:56 | 2026 Apr 29 15:55:50 | 61.9041 | 0.74081 | 20.3556 | 43.0356 | 355.4031 | 2.01923 | – |
| 2026 Apr 30 17:56 | 2026 Apr 29 15:55:50 | 61.9041 | 0.74081 | 20.3556 | 43.0356 | 355.4031 | 2.01923 | – |
| 2026 Apr 29 17:57 | 2026 Apr 22 17:30:37 | 61.9338 | 0.74065 | 20.4318 | 42.9025 | 355.4031 | 2.01923 | – |
| 2026 Apr 28 17:56 | 2026 Apr 22 17:30:37 | 61.9338 | 0.74065 | 20.4318 | 42.9025 | 355.4031 | 2.01923 | – |
| 2026 Apr 27 17:58 | 2026 Apr 22 17:30:37 | 61.9338 | 0.74065 | 20.4318 | 42.9025 | 355.4031 | 2.01923 | – |
| 2026 Apr 26 17:58 | 2026 Apr 22 17:30:37 | 61.9338 | 0.74065 | 20.4318 | 42.9025 | 355.4031 | 2.01923 | – |
| 2026 Apr 25 17:58 | 2026 Apr 22 17:30:37 | 61.9338 | 0.74065 | 20.4318 | 42.9025 | 355.4031 | 2.01923 | – |
| 2026 Apr 24 17:59 | 2026 Apr 22 17:30:37 | 61.9338 | 0.74065 | 20.4318 | 42.9025 | 355.4031 | 2.01923 | – |
| 2026 Apr 23 17:57 | 2026 Apr 15 19:04:40 | 61.9658 | 0.74051 | 20.5078 | 42.7667 | 355.4031 | 2.01923 | – |
| 2026 Apr 22 17:57 | 2026 Apr 15 19:04:40 | 61.9658 | 0.74051 | 20.5078 | 42.7667 | 355.4031 | 2.01923 | – |
| 2026 Apr 21 17:57 | 2026 Apr 15 19:04:40 | 61.9658 | 0.74051 | 20.5078 | 42.7667 | 355.4031 | 2.01923 | – |
| 2026 Apr 20 17:57 | 2026 Apr 15 19:04:40 | 61.9658 | 0.74051 | 20.5078 | 42.7667 | 355.4031 | 2.01923 | – |
| 2026 Apr 19 17:58 | 2026 Apr 15 19:04:40 | 61.9658 | 0.74051 | 20.5078 | 42.7667 | 355.4031 | 2.01923 | – |
| 2026 Apr 18 17:56 | 2026 Apr 12 19:44:47 | 61.9791 | 0.74045 | 20.5402 | 42.7086 | 355.4031 | 2.01923 | – |
| 2026 Apr 16 17:57 | 2026 Apr 12 19:44:47 | 61.9791 | 0.74045 | 20.5402 | 42.7086 | 355.4031 | 2.01923 | – |
| 2026 Apr 14 17:57 | 2026 Apr 12 19:44:47 | 61.9791 | 0.74045 | 20.5402 | 42.7086 | 355.4031 | 2.01923 | – |
| 2026 Apr 13 17:57 | 2026 Apr 12 19:44:47 | 61.9791 | 0.74045 | 20.5402 | 42.7086 | 355.4031 | 2.01923 | – |
| 2026 Apr 12 17:57 | 2026 Apr 07 20:51:41 | 62.0017 | 0.74034 | 20.5943 | 42.6155 | 355.4031 | 2.01923 | – |
| 2026 Apr 11 17:57 | 2026 Apr 07 20:51:41 | 62.0017 | 0.74034 | 20.5943 | 42.6155 | 355.4031 | 2.01923 | – |
| 2026 Apr 10 17:58 | 2026 Apr 07 20:51:41 | 62.0017 | 0.74034 | 20.5943 | 42.6155 | 355.4031 | 2.01923 | – |
| 2026 Apr 09 18:01 | 2026 Apr 07 20:51:41 | 62.0017 | 0.74034 | 20.5943 | 42.6155 | 355.4031 | 2.01923 | – |
| 2026 Apr 08 17:57 | 2026 Apr 07 20:51:41 | 62.0017 | 0.74034 | 20.5943 | 42.6155 | 355.4031 | 2.01923 | – |