Orbital elements of COSMOS 81
| Launched | 2 September 1965 |
| Flight ended | – |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 1571 |
| 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 Feb 03 18:56 | 2026 Feb 02 11:20:18 | 56.0582 | 0.00855 | 13.6136 | 267.2958 | 125.0235 | 12.48866 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 11:20:18 | 56.0582 | 0.00855 | 13.6136 | 267.2958 | 125.0235 | 12.48866 | – |
| 2026 Feb 01 18:56 | 2026 Jan 27 18:49:38 | 56.0577 | 0.00856 | 14.6348 | 259.4703 | 125.0235 | 12.48866 | – |
| 2026 Jan 31 18:56 | 2026 Jan 27 18:49:38 | 56.0577 | 0.00856 | 14.6348 | 259.4703 | 125.0235 | 12.48866 | – |
| 2026 Jan 30 18:57 | 2026 Jan 27 18:49:38 | 56.0577 | 0.00856 | 14.6348 | 259.4703 | 125.0235 | 12.48866 | – |
| 2026 Jan 29 18:56 | 2026 Jan 27 18:49:38 | 56.0577 | 0.00856 | 14.6348 | 259.4703 | 125.0235 | 12.48866 | – |
| 2026 Jan 28 18:56 | 2026 Jan 27 18:49:38 | 56.0577 | 0.00856 | 14.6348 | 259.4703 | 125.0235 | 12.48866 | – |
| 2026 Jan 27 18:56 | 2026 Jan 22 01:17:35 | 56.0579 | 0.00856 | 15.6637 | 251.5893 | 125.0235 | 12.48866 | – |
| 2026 Jan 26 18:57 | 2026 Jan 22 01:17:35 | 56.0579 | 0.00856 | 15.6637 | 251.5893 | 125.0235 | 12.48866 | – |
| 2026 Jan 25 18:57 | 2026 Jan 22 01:17:35 | 56.0579 | 0.00856 | 15.6637 | 251.5893 | 125.0235 | 12.48866 | – |
| 2026 Jan 24 18:58 | 2026 Jan 22 01:17:35 | 56.0579 | 0.00856 | 15.6637 | 251.5893 | 125.0235 | 12.48866 | – |
| 2026 Jan 22 18:56 | 2026 Jan 22 01:17:35 | 56.0579 | 0.00856 | 15.6637 | 251.5893 | 125.0235 | 12.48866 | – |
| 2026 Jan 21 18:56 | 2026 Jan 16 08:57:47 | 56.0589 | 0.00857 | 16.6836 | 243.7846 | 125.0235 | 12.48866 | – |
| 2026 Jan 20 19:06 | 2026 Jan 16 08:57:47 | 56.0589 | 0.00857 | 16.6836 | 243.7846 | 125.0235 | 12.48866 | – |
| 2026 Jan 19 18:57 | 2026 Jan 16 08:57:47 | 56.0589 | 0.00857 | 16.6836 | 243.7846 | 125.0235 | 12.48866 | – |
| 2026 Jan 18 18:57 | 2026 Jan 16 08:57:47 | 56.0589 | 0.00857 | 16.6836 | 243.7846 | 125.0235 | 12.48866 | – |
| 2026 Jan 17 18:56 | 2026 Jan 16 08:57:47 | 56.0589 | 0.00857 | 16.6836 | 243.7846 | 125.0235 | 12.48866 | – |
| 2026 Jan 16 18:57 | 2026 Jan 16 08:57:47 | 56.0589 | 0.00857 | 16.6836 | 243.7846 | 125.0235 | 12.48866 | – |
| 2026 Jan 15 18:56 | 2026 Jan 11 09:51:02 | 56.0601 | 0.00859 | 17.5746 | 236.9754 | 125.0235 | 12.48866 | – |
| 2026 Jan 13 18:56 | 2026 Jan 11 09:51:02 | 56.0601 | 0.00859 | 17.5746 | 236.9754 | 125.0235 | 12.48866 | – |
| 2026 Jan 11 18:57 | 2026 Jan 11 09:51:02 | 56.0601 | 0.00859 | 17.5746 | 236.9754 | 125.0235 | 12.48866 | – |
| 2026 Jan 10 18:57 | 2026 Jan 06 04:56:14 | 56.0613 | 0.00861 | 18.5089 | 229.8613 | 125.0235 | 12.48866 | – |
| 2026 Jan 09 18:57 | 2026 Jan 06 04:56:14 | 56.0613 | 0.00861 | 18.5089 | 229.8613 | 125.0235 | 12.48866 | – |
| 2026 Jan 08 18:56 | 2026 Jan 06 04:56:14 | 56.0613 | 0.00861 | 18.5089 | 229.8613 | 125.0235 | 12.48866 | – |
| 2026 Jan 07 18:57 | 2026 Jan 06 04:56:14 | 56.0613 | 0.00861 | 18.5089 | 229.8613 | 125.0235 | 12.48866 | – |