| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38149 | 34413 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 16 17:49 | 2024 Dec 22 23:25 |
| Time of closest approach (UTC) | 2024 Dec 26 21:59:28.191 |
| Minimum distance | 4.946 km |
| Height difference | 0.230 km |
| Relative speed | 14.752 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 28.5°S, 56.5°W |
| Height | 862 km |
|