| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 38212 | 31001 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 14:24 | 2024 Dec 22 00:09 |
| Time of closest approach (UTC) | 2024 Dec 26 01:07:58.571 |
| Minimum distance | 2.697 km |
| Height difference | -1.317 km |
| Relative speed | 14.640 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 71.2°N, 55.9°E |
| Height | 676 km |
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