Orbital elements of COSMOS 831
| Launched | 14 June 1976 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 8895 |
| 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 Dec 07 18:56 | 2025 Dec 07 07:41:26 | 74.0002 | 0.00201 | 6.6230 | 55.6895 | 332.4448 | 12.43745 | – |
| 2025 Dec 06 18:56 | 2025 Dec 02 12:04:59 | 73.9995 | 0.00201 | 7.0455 | 63.0861 | 332.4448 | 12.43745 | – |
| 2025 Dec 05 18:57 | 2025 Dec 02 12:04:59 | 73.9995 | 0.00201 | 7.0455 | 63.0861 | 332.4448 | 12.43745 | – |
| 2025 Dec 04 18:57 | 2025 Dec 02 12:04:59 | 73.9995 | 0.00201 | 7.0455 | 63.0861 | 332.4448 | 12.43745 | – |
| 2025 Dec 03 18:56 | 2025 Dec 02 12:04:59 | 73.9995 | 0.00201 | 7.0455 | 63.0861 | 332.4448 | 12.43745 | – |
| 2025 Dec 02 18:56 | 2025 Dec 02 12:04:59 | 73.9995 | 0.00201 | 7.0455 | 63.0861 | 332.4448 | 12.43745 | – |
| 2025 Nov 30 18:57 | 2025 Nov 25 12:09:48 | 73.9982 | 0.00201 | 7.6592 | 73.9407 | 332.4448 | 12.43745 | – |
| 2025 Nov 29 18:56 | 2025 Nov 25 12:09:48 | 73.9982 | 0.00201 | 7.6592 | 73.9407 | 332.4448 | 12.43745 | – |
| 2025 Nov 28 18:57 | 2025 Nov 25 12:09:48 | 73.9982 | 0.00201 | 7.6592 | 73.9407 | 332.4448 | 12.43745 | – |
| 2025 Nov 27 18:57 | 2025 Nov 25 12:09:48 | 73.9982 | 0.00201 | 7.6592 | 73.9407 | 332.4448 | 12.43745 | – |
| 2025 Nov 26 18:57 | 2025 Nov 25 12:09:48 | 73.9982 | 0.00201 | 7.6592 | 73.9407 | 332.4448 | 12.43745 | – |
| 2025 Nov 25 18:57 | 2025 Nov 25 12:09:48 | 73.9982 | 0.00201 | 7.6592 | 73.9407 | 332.4448 | 12.43745 | – |
| 2025 Nov 24 18:56 | 2025 Nov 20 05:19:05 | 73.9977 | 0.00200 | 8.1228 | 81.9499 | 332.4448 | 12.43745 | – |
| 2025 Nov 23 18:57 | 2025 Nov 20 05:19:05 | 73.9977 | 0.00200 | 8.1228 | 81.9499 | 332.4448 | 12.43745 | – |
| 2025 Nov 21 18:57 | 2025 Nov 20 05:19:05 | 73.9977 | 0.00200 | 8.1228 | 81.9499 | 332.4448 | 12.43745 | – |
| 2025 Nov 20 18:56 | 2025 Nov 20 05:19:05 | 73.9977 | 0.00200 | 8.1228 | 81.9499 | 332.4448 | 12.43745 | – |
| 2025 Nov 18 18:57 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |
| 2025 Nov 16 18:58 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |
| 2025 Nov 15 18:57 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |
| 2025 Nov 13 18:56 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |
| 2025 Nov 12 18:57 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |
| 2025 Nov 11 18:55 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |
| 2025 Nov 10 18:57 | 2025 Nov 08 12:39:18 | 73.9972 | 0.00201 | 9.1487 | 99.9026 | 332.4448 | 12.43745 | – |