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 |
| 2025 Sep 12 17:57 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 05:41:14 | 56.0577 | 0.00897 | 16.9450 | 63.2195 | 47.1290 | 12.48863 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 20:19:05 | 56.0584 | 0.00895 | 18.0923 | 54.8097 | 47.1290 | 12.48863 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 20:19:05 | 56.0584 | 0.00895 | 18.0923 | 54.8097 | 47.1290 | 12.48863 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 20:19:05 | 56.0584 | 0.00895 | 18.0923 | 54.8097 | 47.1290 | 12.48863 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 20:19:05 | 56.0584 | 0.00895 | 18.0923 | 54.8097 | 47.1290 | 12.48863 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 20:19:05 | 56.0584 | 0.00895 | 18.0923 | 54.8097 | 47.1290 | 12.48863 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 20:19:05 | 56.0584 | 0.00895 | 18.0923 | 54.8097 | 47.1290 | 12.48863 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 06:16:59 | 56.0592 | 0.00894 | 18.9155 | 48.7732 | 47.1290 | 12.48863 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 06:16:59 | 56.0592 | 0.00894 | 18.9155 | 48.7732 | 47.1290 | 12.48863 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 06:16:59 | 56.0592 | 0.00894 | 18.9155 | 48.7732 | 47.1290 | 12.48863 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 06:16:59 | 56.0592 | 0.00894 | 18.9155 | 48.7732 | 47.1290 | 12.48863 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 06:16:59 | 56.0592 | 0.00894 | 18.9155 | 48.7732 | 47.1290 | 12.48863 | – |
| 2025 Aug 22 17:56 | 2025 Aug 18 11:06:22 | 56.0606 | 0.00892 | 19.7771 | 42.4382 | 47.1290 | 12.48863 | – |
| 2025 Aug 20 17:56 | 2025 Aug 18 11:06:22 | 56.0606 | 0.00892 | 19.7771 | 42.4382 | 47.1290 | 12.48863 | – |
| 2025 Aug 19 17:56 | 2025 Aug 18 11:06:22 | 56.0606 | 0.00892 | 19.7771 | 42.4382 | 47.1290 | 12.48863 | – |
| 2025 Aug 18 17:56 | 2025 Aug 18 11:06:22 | 56.0606 | 0.00892 | 19.7771 | 42.4382 | 47.1290 | 12.48863 | – |