Orbital elements of COSMOS 1857
| Launched | 15 June 1987 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18118 |
| 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 04:02:40 | 74.0051 | 0.00388 | 10.7294 | 222.9804 | 136.8214 | 12.54268 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 04:55:40 | 74.0051 | 0.00390 | 11.7992 | 240.9002 | 136.8214 | 12.54268 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 21:42:47 | 74.0043 | 0.00391 | 12.3627 | 250.2915 | 136.8214 | 12.54268 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 21:42:47 | 74.0043 | 0.00391 | 12.3627 | 250.2915 | 136.8214 | 12.54268 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 21:42:47 | 74.0043 | 0.00391 | 12.3627 | 250.2915 | 136.8214 | 12.54268 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 21:42:47 | 74.0043 | 0.00391 | 12.3627 | 250.2915 | 136.8214 | 12.54268 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 21:42:47 | 74.0043 | 0.00391 | 12.3627 | 250.2915 | 136.8214 | 12.54268 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 21:42:47 | 74.0043 | 0.00391 | 12.3627 | 250.2915 | 136.8214 | 12.54268 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 06:41:41 | 74.0036 | 0.00391 | 12.7764 | 257.1907 | 136.8214 | 12.54268 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 06:41:41 | 74.0036 | 0.00391 | 12.7764 | 257.1907 | 136.8214 | 12.54268 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 06:41:41 | 74.0036 | 0.00391 | 12.7764 | 257.1907 | 136.8214 | 12.54268 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 06:41:41 | 74.0036 | 0.00391 | 12.7764 | 257.1907 | 136.8214 | 12.54268 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 06:41:41 | 74.0036 | 0.00391 | 12.7764 | 257.1907 | 136.8214 | 12.54268 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 22:26:58 | 74.0027 | 0.00391 | 13.2543 | 265.1474 | 136.8214 | 12.54268 | – |