| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 36470 | 30828 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 09:54 | 2024 Dec 22 17:26 |
| Time of closest approach (UTC) | 2024 Dec 28 01:47:41.372 |
| Minimum distance | 3.402 km |
| Height difference | 3.250 km |
| Relative speed | 14.551 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 70.2°S, 6.4°W |
| Height | 669 km |
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