| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33842 | 31328 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:43 | 2024 Dec 23 03:57 |
| Time of closest approach (UTC) | 2024 Dec 26 08:13:38.251 |
| Minimum distance | 4.821 km |
| Height difference | -1.300 km |
| Relative speed | 14.946 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 45.4°N, 50.6°W |
| Height | 744 km |
|