Orbital elements of COSMOS 871
| Launched | 6 December 1976 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 9588 |
| 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 15 17:56 | 2025 Sep 15 05:53:33 | 74.0278 | 0.00297 | 5.3227 | 39.3680 | 134.1059 | 12.55770 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 01:16:56 | 74.0281 | 0.00296 | 6.4147 | 58.1521 | 134.1059 | 12.55770 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 21:19:01 | 74.0288 | 0.00295 | 6.9668 | 67.6228 | 134.1059 | 12.55770 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 21:19:01 | 74.0288 | 0.00295 | 6.9668 | 67.6228 | 134.1059 | 12.55770 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 21:19:01 | 74.0288 | 0.00295 | 6.9668 | 67.6228 | 134.1059 | 12.55770 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 21:19:01 | 74.0288 | 0.00295 | 6.9668 | 67.6228 | 134.1059 | 12.55770 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 21:19:01 | 74.0288 | 0.00295 | 6.9668 | 67.6228 | 134.1059 | 12.55770 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 21:19:01 | 74.0288 | 0.00295 | 6.9668 | 67.6228 | 134.1059 | 12.55770 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 03:09:58 | 74.0293 | 0.00295 | 7.3927 | 74.9823 | 134.1059 | 12.55770 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 03:09:58 | 74.0293 | 0.00295 | 7.3927 | 74.9823 | 134.1059 | 12.55770 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 03:09:58 | 74.0293 | 0.00295 | 7.3927 | 74.9823 | 134.1059 | 12.55770 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 03:09:58 | 74.0293 | 0.00295 | 7.3927 | 74.9823 | 134.1059 | 12.55770 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 03:09:58 | 74.0293 | 0.00295 | 7.3927 | 74.9823 | 134.1059 | 12.55770 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 20:44:54 | 74.0302 | 0.00294 | 7.8644 | 83.1541 | 134.1059 | 12.55770 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 20:44:54 | 74.0302 | 0.00294 | 7.8644 | 83.1541 | 134.1059 | 12.55770 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 20:44:54 | 74.0302 | 0.00294 | 7.8644 | 83.1541 | 134.1059 | 12.55770 | – |