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 |
| 2026 Jun 23 17:56 | 2026 Jun 22 19:01:20 | 73.9978 | 0.00201 | 13.3007 | 125.4457 | 348.8388 | 12.43748 | – |
| 2026 Jun 22 17:56 | 2026 Jun 17 13:34:03 | 73.9985 | 0.00201 | 13.7592 | 133.3470 | 348.8388 | 12.43748 | – |
| 2026 Jun 21 17:57 | 2026 Jun 17 13:34:03 | 73.9985 | 0.00201 | 13.7592 | 133.3470 | 348.8388 | 12.43748 | – |
| 2026 Jun 20 17:56 | 2026 Jun 17 13:34:03 | 73.9985 | 0.00201 | 13.7592 | 133.3470 | 348.8388 | 12.43748 | – |
| 2026 Jun 19 17:57 | 2026 Jun 17 13:34:03 | 73.9985 | 0.00201 | 13.7592 | 133.3470 | 348.8388 | 12.43748 | – |
| 2026 Jun 18 17:56 | 2026 Jun 17 13:34:03 | 73.9985 | 0.00201 | 13.7592 | 133.3470 | 348.8388 | 12.43748 | – |
| 2026 Jun 17 17:57 | 2026 Jun 17 13:34:03 | 73.9985 | 0.00201 | 13.7592 | 133.3470 | 348.8388 | 12.43748 | – |
| 2026 Jun 16 17:55 | 2026 Jun 12 05:55:31 | 73.9989 | 0.00202 | 14.2257 | 141.3185 | 348.8388 | 12.43748 | – |
| 2026 Jun 15 17:56 | 2026 Jun 12 05:55:31 | 73.9989 | 0.00202 | 14.2257 | 141.3185 | 348.8388 | 12.43748 | – |
| 2026 Jun 14 17:57 | 2026 Jun 12 05:55:31 | 73.9989 | 0.00202 | 14.2257 | 141.3185 | 348.8388 | 12.43748 | – |
| 2026 Jun 13 17:56 | 2026 Jun 12 05:55:31 | 73.9989 | 0.00202 | 14.2257 | 141.3185 | 348.8388 | 12.43748 | – |
| 2026 Jun 12 17:56 | 2026 Jun 12 05:55:31 | 73.9989 | 0.00202 | 14.2257 | 141.3185 | 348.8388 | 12.43748 | – |
| 2026 Jun 11 17:57 | 2026 Jun 06 14:48:31 | 73.9997 | 0.00203 | 14.7196 | 149.7439 | 348.8388 | 12.43748 | – |
| 2026 Jun 10 17:56 | 2026 Jun 06 14:48:31 | 73.9997 | 0.00203 | 14.7196 | 149.7439 | 348.8388 | 12.43748 | – |
| 2026 Jun 09 17:57 | 2026 Jun 06 14:48:31 | 73.9997 | 0.00203 | 14.7196 | 149.7439 | 348.8388 | 12.43748 | – |
| 2026 Jun 08 17:56 | 2026 Jun 06 14:48:31 | 73.9997 | 0.00203 | 14.7196 | 149.7439 | 348.8388 | 12.43748 | – |
| 2026 Jun 07 17:56 | 2026 Jun 06 14:48:31 | 73.9997 | 0.00203 | 14.7196 | 149.7439 | 348.8388 | 12.43748 | – |
| 2026 Jun 06 17:56 | 2026 May 31 08:12:26 | 74.0004 | 0.00204 | 15.2699 | 159.0580 | 348.8388 | 12.43748 | – |
| 2026 Jun 05 17:56 | 2026 May 31 08:12:26 | 74.0004 | 0.00204 | 15.2699 | 159.0580 | 348.8388 | 12.43748 | – |
| 2026 Jun 04 17:57 | 2026 May 31 08:12:26 | 74.0004 | 0.00204 | 15.2699 | 159.0580 | 348.8388 | 12.43748 | – |
| 2026 Jun 02 17:56 | 2026 May 31 08:12:26 | 74.0004 | 0.00204 | 15.2699 | 159.0580 | 348.8388 | 12.43748 | – |
| 2026 Jun 01 17:57 | 2026 May 31 08:12:26 | 74.0004 | 0.00204 | 15.2699 | 159.0580 | 348.8388 | 12.43748 | – |
| 2026 May 31 17:58 | 2026 May 31 08:12:26 | 74.0004 | 0.00204 | 15.2699 | 159.0580 | 348.8388 | 12.43748 | – |
| 2026 May 30 17:57 | 2026 May 26 06:19:14 | 74.0006 | 0.00205 | 15.7154 | 166.5884 | 348.8388 | 12.43748 | – |
| 2026 May 29 17:57 | 2026 May 26 06:19:14 | 74.0006 | 0.00205 | 15.7154 | 166.5884 | 348.8388 | 12.43748 | – |
| 2026 May 28 17:56 | 2026 May 26 06:19:14 | 74.0006 | 0.00205 | 15.7154 | 166.5884 | 348.8388 | 12.43748 | – |
| 2026 May 27 17:57 | 2026 May 26 06:19:14 | 74.0006 | 0.00205 | 15.7154 | 166.5884 | 348.8388 | 12.43748 | – |