Orbital elements of COSMOS 1251
| Launched | 5 March 1981 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12321 |
| 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 Mar 31 17:57 | 2026 Mar 26 12:49:48 | 74.0312 | 0.00451 | 11.7311 | 276.5841 | 94.1080 | 12.56489 | – |
| 2026 Mar 30 17:58 | 2026 Mar 26 12:49:48 | 74.0312 | 0.00451 | 11.7311 | 276.5841 | 94.1080 | 12.56489 | – |
| 2026 Mar 29 17:57 | 2026 Mar 26 12:49:48 | 74.0312 | 0.00451 | 11.7311 | 276.5841 | 94.1080 | 12.56489 | – |
| 2026 Mar 28 18:57 | 2026 Mar 26 12:49:48 | 74.0312 | 0.00451 | 11.7311 | 276.5841 | 94.1080 | 12.56489 | – |
| 2026 Mar 27 18:57 | 2026 Mar 26 12:49:48 | 74.0312 | 0.00451 | 11.7311 | 276.5841 | 94.1080 | 12.56489 | – |
| 2026 Mar 26 18:57 | 2026 Mar 26 12:49:48 | 74.0312 | 0.00451 | 11.7311 | 276.5841 | 94.1080 | 12.56489 | – |
| 2026 Mar 25 18:56 | 2026 Mar 20 13:31:31 | 74.0310 | 0.00451 | 12.2665 | 285.5537 | 94.1080 | 12.56489 | – |
| 2026 Mar 24 18:56 | 2026 Mar 20 13:31:31 | 74.0310 | 0.00451 | 12.2665 | 285.5537 | 94.1080 | 12.56489 | – |
| 2026 Mar 23 18:56 | 2026 Mar 20 13:31:31 | 74.0310 | 0.00451 | 12.2665 | 285.5537 | 94.1080 | 12.56489 | – |
| 2026 Mar 22 18:56 | 2026 Mar 20 13:31:31 | 74.0310 | 0.00451 | 12.2665 | 285.5537 | 94.1080 | 12.56489 | – |
| 2026 Mar 21 19:05 | 2026 Mar 20 13:31:31 | 74.0310 | 0.00451 | 12.2665 | 285.5537 | 94.1080 | 12.56489 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 13:31:31 | 74.0310 | 0.00451 | 12.2665 | 285.5537 | 94.1080 | 12.56489 | – |
| 2026 Mar 19 18:56 | 2026 Mar 15 15:05:56 | 74.0308 | 0.00450 | 12.7088 | 292.9788 | 94.1080 | 12.56489 | – |
| 2026 Mar 18 18:56 | 2026 Mar 15 15:05:56 | 74.0308 | 0.00450 | 12.7088 | 292.9788 | 94.1080 | 12.56489 | – |
| 2026 Mar 17 18:56 | 2026 Mar 15 15:05:56 | 74.0308 | 0.00450 | 12.7088 | 292.9788 | 94.1080 | 12.56489 | – |
| 2026 Mar 16 18:57 | 2026 Mar 15 15:05:56 | 74.0308 | 0.00450 | 12.7088 | 292.9788 | 94.1080 | 12.56489 | – |
| 2026 Mar 15 18:56 | 2026 Mar 15 15:05:56 | 74.0308 | 0.00450 | 12.7088 | 292.9788 | 94.1080 | 12.56489 | – |
| 2026 Mar 14 18:56 | 2026 Mar 10 13:06:59 | 74.0303 | 0.00449 | 13.1645 | 300.6211 | 94.1080 | 12.56489 | – |
| 2026 Mar 13 18:57 | 2026 Mar 10 13:06:59 | 74.0303 | 0.00449 | 13.1645 | 300.6211 | 94.1080 | 12.56489 | – |
| 2026 Mar 12 18:57 | 2026 Mar 10 13:06:59 | 74.0303 | 0.00449 | 13.1645 | 300.6211 | 94.1080 | 12.56489 | – |
| 2026 Mar 11 18:56 | 2026 Mar 10 13:06:59 | 74.0303 | 0.00449 | 13.1645 | 300.6211 | 94.1080 | 12.56489 | – |
| 2026 Mar 10 18:56 | 2026 Mar 10 13:06:59 | 74.0303 | 0.00449 | 13.1645 | 300.6211 | 94.1080 | 12.56489 | – |
| 2026 Mar 09 18:56 | 2026 Mar 04 11:51:20 | 74.0290 | 0.00449 | 13.7072 | 309.7417 | 94.1080 | 12.56489 | – |
| 2026 Mar 08 18:57 | 2026 Mar 04 11:51:20 | 74.0290 | 0.00449 | 13.7072 | 309.7417 | 94.1080 | 12.56489 | – |
| 2026 Mar 07 18:57 | 2026 Mar 04 11:51:20 | 74.0290 | 0.00449 | 13.7072 | 309.7417 | 94.1080 | 12.56489 | – |
| 2026 Mar 06 18:56 | 2026 Mar 04 11:51:20 | 74.0290 | 0.00449 | 13.7072 | 309.7417 | 94.1080 | 12.56489 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 11:51:20 | 74.0290 | 0.00449 | 13.7072 | 309.7417 | 94.1080 | 12.56489 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 11:51:20 | 74.0290 | 0.00449 | 13.7072 | 309.7417 | 94.1080 | 12.56489 | – |