| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-252 |
| Spacetrack catalog number | 33728 | 5322 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:34 | 2024 Dec 22 19:00 |
| Time of closest approach (UTC) | 2024 Dec 25 13:01:26.891 |
| Minimum distance | 1.144 km |
| Height difference | -0.585 km |
| Relative speed | 9.284 km/s |
| Angle between velocity vectors | 75° |
| Geographic position | 56.0°N, 94.5°W |
| Height | 701 km |
|