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 Jul 28 17:57 | 2026 Jul 27 02:00:13 | 56.0600 | 0.00889 | 6.2652 | 141.2027 | 3.6287 | 12.48868 | – |
| 2026 Jul 27 17:57 | 2026 Jul 27 02:00:13 | 56.0600 | 0.00889 | 6.2652 | 141.2027 | 3.6287 | 12.48868 | – |
| 2026 Jul 26 17:56 | 2026 Jul 21 03:51:40 | 56.0599 | 0.00891 | 7.3285 | 133.3725 | 3.6287 | 12.48868 | – |
| 2026 Jul 25 17:57 | 2026 Jul 21 03:51:40 | 56.0599 | 0.00891 | 7.3285 | 133.3725 | 3.6287 | 12.48868 | – |
| 2026 Jul 24 17:56 | 2026 Jul 21 03:51:40 | 56.0599 | 0.00891 | 7.3285 | 133.3725 | 3.6287 | 12.48868 | – |
| 2026 Jul 23 17:57 | 2026 Jul 21 03:51:40 | 56.0599 | 0.00891 | 7.3285 | 133.3725 | 3.6287 | 12.48868 | – |
| 2026 Jul 22 17:57 | 2026 Jul 21 03:51:40 | 56.0599 | 0.00891 | 7.3285 | 133.3725 | 3.6287 | 12.48868 | – |
| 2026 Jul 21 17:57 | 2026 Jul 21 03:51:40 | 56.0599 | 0.00891 | 7.3285 | 133.3725 | 3.6287 | 12.48868 | – |
| 2026 Jul 20 17:57 | 2026 Jul 16 04:44:23 | 56.0591 | 0.00893 | 8.2196 | 126.8210 | 3.6287 | 12.48868 | – |
| 2026 Jul 19 19:06 | 2026 Jul 16 04:44:23 | 56.0591 | 0.00893 | 8.2196 | 126.8210 | 3.6287 | 12.48868 | – |
| 2026 Jul 19 17:57 | 2026 Jul 16 04:44:23 | 56.0591 | 0.00893 | 8.2196 | 126.8210 | 3.6287 | 12.48868 | – |
| 2026 Jul 18 17:57 | 2026 Jul 16 04:44:23 | 56.0591 | 0.00893 | 8.2196 | 126.8210 | 3.6287 | 12.48868 | – |
| 2026 Jul 17 17:57 | 2026 Jul 16 04:44:23 | 56.0591 | 0.00893 | 8.2196 | 126.8210 | 3.6287 | 12.48868 | – |
| 2026 Jul 16 17:56 | 2026 Jul 16 04:44:23 | 56.0591 | 0.00893 | 8.2196 | 126.8210 | 3.6287 | 12.48868 | – |
| 2026 Jul 15 17:57 | 2026 Jul 11 07:38:29 | 56.0589 | 0.00894 | 9.0955 | 120.4003 | 3.6287 | 12.48868 | – |
| 2026 Jul 14 17:56 | 2026 Jul 11 07:38:29 | 56.0589 | 0.00894 | 9.0955 | 120.4003 | 3.6287 | 12.48868 | – |
| 2026 Jul 13 17:56 | 2026 Jul 11 07:38:29 | 56.0589 | 0.00894 | 9.0955 | 120.4003 | 3.6287 | 12.48868 | – |
| 2026 Jul 12 17:56 | 2026 Jul 11 07:38:29 | 56.0589 | 0.00894 | 9.0955 | 120.4003 | 3.6287 | 12.48868 | – |
| 2026 Jul 11 17:56 | 2026 Jul 11 07:38:29 | 56.0589 | 0.00894 | 9.0955 | 120.4003 | 3.6287 | 12.48868 | – |
| 2026 Jul 09 17:56 | 2026 Jul 05 07:26:48 | 56.0576 | 0.00895 | 10.1742 | 112.5102 | 3.6287 | 12.48868 | – |
| 2026 Jul 08 17:56 | 2026 Jul 05 07:26:48 | 56.0576 | 0.00895 | 10.1742 | 112.5102 | 3.6287 | 12.48868 | – |
| 2026 Jul 07 17:56 | 2026 Jul 05 07:26:48 | 56.0576 | 0.00895 | 10.1742 | 112.5102 | 3.6287 | 12.48868 | – |
| 2026 Jul 06 17:57 | 2026 Jul 05 07:26:48 | 56.0576 | 0.00895 | 10.1742 | 112.5102 | 3.6287 | 12.48868 | – |
| 2026 Jul 05 17:56 | 2026 Jul 05 07:26:48 | 56.0576 | 0.00895 | 10.1742 | 112.5102 | 3.6287 | 12.48868 | – |
| 2026 Jul 04 17:56 | 2026 Jun 28 23:03:19 | 56.0573 | 0.00895 | 11.3142 | 104.1700 | 3.6287 | 12.48868 | – |
| 2026 Jul 03 17:57 | 2026 Jun 28 23:03:19 | 56.0573 | 0.00895 | 11.3142 | 104.1700 | 3.6287 | 12.48868 | – |
| 2026 Jul 02 17:56 | 2026 Jun 28 23:03:19 | 56.0573 | 0.00895 | 11.3142 | 104.1700 | 3.6287 | 12.48868 | – |
| 2026 Jul 01 17:56 | 2026 Jun 28 23:03:19 | 56.0573 | 0.00895 | 11.3142 | 104.1700 | 3.6287 | 12.48868 | – |