Orbital elements of COSMOS 1581
| Launched | 2 July 1984 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15095 |
| 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 Jul 01 17:56 | 2025 Jun 28 09:11:41 | 66.8378 | 0.67420 | 3.2236 | 9.8111 | 358.7870 | 1.99741 | – |
| 2025 Jun 30 17:56 | 2025 Jun 28 09:11:41 | 66.8378 | 0.67420 | 3.2236 | 9.8111 | 358.7870 | 1.99741 | – |
| 2025 Jun 29 17:56 | 2025 Jun 28 09:11:41 | 66.8378 | 0.67420 | 3.2236 | 9.8111 | 358.7870 | 1.99741 | – |
| 2025 Jun 28 17:56 | 2025 Jun 28 09:11:41 | 66.8378 | 0.67420 | 3.2236 | 9.8111 | 358.7870 | 1.99741 | – |
| 2025 Jun 27 17:56 | 2025 Jun 22 09:00:15 | 66.8243 | 0.67434 | 3.2592 | 9.9422 | 358.7870 | 1.99741 | – |
| 2025 Jun 26 17:56 | 2025 Jun 22 09:00:15 | 66.8243 | 0.67434 | 3.2592 | 9.9422 | 358.7870 | 1.99741 | – |
| 2025 Jun 25 17:56 | 2025 Jun 22 09:00:15 | 66.8243 | 0.67434 | 3.2592 | 9.9422 | 358.7870 | 1.99741 | – |
| 2025 Jun 24 17:56 | 2025 Jun 22 09:00:15 | 66.8243 | 0.67434 | 3.2592 | 9.9422 | 358.7870 | 1.99741 | – |
| 2025 Jun 23 17:56 | 2025 Jun 22 09:00:15 | 66.8243 | 0.67434 | 3.2592 | 9.9422 | 358.7870 | 1.99741 | – |
| 2025 Jun 22 17:56 | 2025 Jun 16 08:48:36 | 66.8104 | 0.67448 | 3.2949 | 10.0747 | 358.7870 | 1.99741 | – |
| 2025 Jun 21 17:56 | 2025 Jun 16 08:48:36 | 66.8104 | 0.67448 | 3.2949 | 10.0747 | 358.7870 | 1.99741 | – |
| 2025 Jun 20 17:57 | 2025 Jun 16 08:48:36 | 66.8104 | 0.67448 | 3.2949 | 10.0747 | 358.7870 | 1.99741 | – |
| 2025 Jun 19 17:56 | 2025 Jun 16 08:48:36 | 66.8104 | 0.67448 | 3.2949 | 10.0747 | 358.7870 | 1.99741 | – |
| 2025 Jun 18 17:56 | 2025 Jun 16 08:48:36 | 66.8104 | 0.67448 | 3.2949 | 10.0747 | 358.7870 | 1.99741 | – |
| 2025 Jun 17 17:56 | 2025 Jun 16 08:48:36 | 66.8104 | 0.67448 | 3.2949 | 10.0747 | 358.7870 | 1.99741 | – |
| 2025 Jun 16 17:56 | 2025 Jun 11 20:39:41 | 66.8000 | 0.67459 | 3.3217 | 10.1760 | 358.7870 | 1.99741 | – |
| 2025 Jun 15 17:56 | 2025 Jun 11 20:39:41 | 66.8000 | 0.67459 | 3.3217 | 10.1760 | 358.7870 | 1.99741 | – |
| 2025 Jun 14 17:56 | 2025 Jun 11 20:39:41 | 66.8000 | 0.67459 | 3.3217 | 10.1760 | 358.7870 | 1.99741 | – |
| 2025 Jun 13 17:56 | 2025 Jun 11 20:39:41 | 66.8000 | 0.67459 | 3.3217 | 10.1760 | 358.7870 | 1.99741 | – |
| 2025 Jun 12 17:56 | 2025 Jun 11 20:39:41 | 66.8000 | 0.67459 | 3.3217 | 10.1760 | 358.7870 | 1.99741 | – |
| 2025 Jun 11 17:56 | 2025 Jun 05 08:26:09 | 66.7848 | 0.67475 | 3.3605 | 10.3240 | 358.7870 | 1.99741 | – |
| 2025 Jun 10 17:56 | 2025 Jun 05 08:26:09 | 66.7848 | 0.67475 | 3.3605 | 10.3240 | 358.7870 | 1.99741 | – |
| 2025 Jun 09 17:56 | 2025 Jun 05 08:26:09 | 66.7848 | 0.67475 | 3.3605 | 10.3240 | 358.7870 | 1.99741 | – |
| 2025 Jun 08 17:56 | 2025 Jun 05 08:26:09 | 66.7848 | 0.67475 | 3.3605 | 10.3240 | 358.7870 | 1.99741 | – |
| 2025 Jun 07 17:56 | 2025 Jun 05 08:26:09 | 66.7848 | 0.67475 | 3.3605 | 10.3240 | 358.7870 | 1.99741 | – |
| 2025 Jun 06 17:56 | 2025 Jun 05 08:26:09 | 66.7848 | 0.67475 | 3.3605 | 10.3240 | 358.7870 | 1.99741 | – |
| 2025 Jun 05 17:56 | 2025 Jun 01 08:17:41 | 66.7762 | 0.67485 | 3.3844 | 10.4138 | 358.7870 | 1.99741 | – |
| 2025 Jun 04 17:57 | 2025 Jun 01 08:17:41 | 66.7762 | 0.67485 | 3.3844 | 10.4138 | 358.7870 | 1.99741 | – |