Orbital elements of COSMOS 1257
| Launched | 5 March 1981 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12327 |
| 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 |
| 2024 May 20 17:57 | 2024 May 16 20:50:53 | 74.0307 | 0.00069 | 23.1331 | 353.6803 | 18.1981 | 12.47839 | – |
| 2024 May 19 17:55 | 2024 May 16 20:50:53 | 74.0307 | 0.00069 | 23.1331 | 353.6803 | 18.1981 | 12.47839 | – |
| 2024 May 18 17:53 | 2024 May 16 20:50:53 | 74.0307 | 0.00069 | 23.1331 | 353.6803 | 18.1981 | 12.47839 | – |
| 2024 May 17 17:53 | 2024 May 16 20:50:53 | 74.0307 | 0.00069 | 23.1331 | 353.6803 | 18.1981 | 12.47839 | – |
| 2024 May 16 17:52 | 2024 May 11 21:33:35 | 74.0313 | 0.00068 | 23.5717 | 1.0256 | 18.1981 | 12.47839 | – |
| 2024 May 15 17:58 | 2024 May 11 21:33:35 | 74.0313 | 0.00068 | 23.5717 | 1.0256 | 18.1981 | 12.47839 | – |
| 2024 May 14 17:55 | 2024 May 11 21:33:35 | 74.0313 | 0.00068 | 23.5717 | 1.0256 | 18.1981 | 12.47839 | – |
| 2024 May 13 17:53 | 2024 May 11 21:33:35 | 74.0313 | 0.00068 | 23.5717 | 1.0256 | 18.1981 | 12.47839 | – |
| 2024 May 12 17:52 | 2024 May 11 21:33:35 | 74.0313 | 0.00068 | 23.5717 | 1.0256 | 18.1981 | 12.47839 | – |
| 2024 May 11 17:53 | 2024 May 07 02:40:31 | 74.0318 | 0.00068 | 23.9941 | 8.1080 | 18.1981 | 12.47839 | – |
| 2024 May 10 17:53 | 2024 May 07 02:40:31 | 74.0318 | 0.00068 | 23.9941 | 8.1080 | 18.1981 | 12.47839 | – |
| 2024 May 09 17:52 | 2024 May 07 02:40:31 | 74.0318 | 0.00068 | 23.9941 | 8.1080 | 18.1981 | 12.47839 | – |
| 2024 May 08 17:52 | 2024 May 07 02:40:31 | 74.0318 | 0.00068 | 23.9941 | 8.1080 | 18.1981 | 12.47839 | – |
| 2024 May 07 17:52 | 2024 May 07 02:40:31 | 74.0318 | 0.00068 | 23.9941 | 8.1080 | 18.1981 | 12.47839 | – |
| 2024 May 06 17:52 | 2024 May 01 22:59:15 | 74.0327 | 0.00067 | 0.4488 | 15.9724 | 18.1981 | 12.47839 | – |
| 2024 May 05 17:52 | 2024 May 01 22:59:15 | 74.0327 | 0.00067 | 0.4488 | 15.9724 | 18.1981 | 12.47839 | – |
| 2024 May 04 17:52 | 2024 May 01 22:59:15 | 74.0327 | 0.00067 | 0.4488 | 15.9724 | 18.1981 | 12.47839 | – |
| 2024 May 03 17:52 | 2024 May 01 22:59:15 | 74.0327 | 0.00067 | 0.4488 | 15.9724 | 18.1981 | 12.47839 | – |
| 2024 May 02 17:52 | 2024 May 01 22:59:15 | 74.0327 | 0.00067 | 0.4488 | 15.9724 | 18.1981 | 12.47839 | – |
| 2024 May 01 17:54 | 2024 Apr 27 15:03:40 | 74.0332 | 0.00066 | 0.8309 | 22.1686 | 18.1981 | 12.47839 | – |
| 2024 Apr 30 17:57 | 2024 Apr 27 15:03:40 | 74.0332 | 0.00066 | 0.8309 | 22.1686 | 18.1981 | 12.47839 | – |
| 2024 Apr 29 17:52 | 2024 Apr 27 15:03:40 | 74.0332 | 0.00066 | 0.8309 | 22.1686 | 18.1981 | 12.47839 | – |
| 2024 Apr 28 17:52 | 2024 Apr 27 15:03:40 | 74.0332 | 0.00066 | 0.8309 | 22.1686 | 18.1981 | 12.47839 | – |
| 2024 Apr 27 17:58 | 2024 Apr 27 15:03:40 | 74.0332 | 0.00066 | 0.8309 | 22.1686 | 18.1981 | 12.47839 | – |
| 2024 Apr 26 17:54 | 2024 Apr 21 20:52:01 | 74.0335 | 0.00065 | 1.3389 | 31.1376 | 18.1981 | 12.47839 | – |
| 2024 Apr 25 17:55 | 2024 Apr 21 20:52:01 | 74.0335 | 0.00065 | 1.3389 | 31.1376 | 18.1981 | 12.47839 | – |
| 2024 Apr 24 17:53 | 2024 Apr 21 20:52:01 | 74.0335 | 0.00065 | 1.3389 | 31.1376 | 18.1981 | 12.47839 | – |
| 2024 Apr 23 17:53 | 2024 Apr 21 20:52:01 | 74.0335 | 0.00065 | 1.3389 | 31.1376 | 18.1981 | 12.47839 | – |