| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34022 | 29996 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:37 | 2024 Dec 23 00:02 |
| Time of closest approach (UTC) | 2024 Dec 24 16:47:37.992 |
| Minimum distance | 1.319 km |
| Height difference | 1.096 km |
| Relative speed | 14.940 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 8.0°N, 33.0°E |
| Height | 782 km |
|