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 |
| 2025 Sep 15 17:56 | 2025 Sep 13 06:40:33 | 62.9641 | 0.73502 | 22.7710 | 40.0633 | 355.4703 | 2.01862 | – |
| 2025 Sep 12 17:57 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 11 17:57 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 10 17:56 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 08 17:57 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 07 17:56 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 06 20:41 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 03 17:57 | 2025 Sep 01 09:19:00 | 63.0093 | 0.73481 | 22.8927 | 40.0119 | 355.4703 | 2.01862 | – |
| 2025 Sep 02 17:56 | 2025 Aug 25 10:50:09 | 63.0274 | 0.73471 | 22.9618 | 39.9557 | 355.4703 | 2.01862 | – |
| 2025 Sep 01 17:56 | 2025 Aug 25 10:50:09 | 63.0274 | 0.73471 | 22.9618 | 39.9557 | 355.4703 | 2.01862 | – |
| 2025 Aug 31 17:56 | 2025 Aug 25 10:50:09 | 63.0274 | 0.73471 | 22.9618 | 39.9557 | 355.4703 | 2.01862 | – |
| 2025 Aug 30 17:56 | 2025 Aug 25 10:50:09 | 63.0274 | 0.73471 | 22.9618 | 39.9557 | 355.4703 | 2.01862 | – |
| 2025 Aug 29 17:56 | 2025 Aug 25 10:50:09 | 63.0274 | 0.73471 | 22.9618 | 39.9557 | 355.4703 | 2.01862 | – |
| 2025 Aug 28 17:57 | 2025 Aug 25 10:50:09 | 63.0274 | 0.73471 | 22.9618 | 39.9557 | 355.4703 | 2.01862 | – |
| 2025 Aug 27 17:56 | 2025 Aug 22 11:28:56 | 63.0380 | 0.73466 | 22.9917 | 39.9362 | 355.4703 | 2.01862 | – |
| 2025 Aug 26 17:56 | 2025 Aug 22 11:28:56 | 63.0380 | 0.73466 | 22.9917 | 39.9362 | 355.4703 | 2.01862 | – |
| 2025 Aug 25 17:56 | 2025 Aug 22 11:28:56 | 63.0380 | 0.73466 | 22.9917 | 39.9362 | 355.4703 | 2.01862 | – |
| 2025 Aug 24 17:56 | 2025 Aug 22 11:28:56 | 63.0380 | 0.73466 | 22.9917 | 39.9362 | 355.4703 | 2.01862 | – |
| 2025 Aug 23 17:56 | 2025 Aug 22 11:28:56 | 63.0380 | 0.73466 | 22.9917 | 39.9362 | 355.4703 | 2.01862 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 12:33:24 | 63.0550 | 0.73457 | 23.0414 | 39.9002 | 355.4703 | 2.01862 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 12:33:24 | 63.0550 | 0.73457 | 23.0414 | 39.9002 | 355.4703 | 2.01862 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 12:33:24 | 63.0550 | 0.73457 | 23.0414 | 39.9002 | 355.4703 | 2.01862 | – |