| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30688 | 33826 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 17:35 | 2024 Dec 22 10:30 |
| Time of closest approach (UTC) | 2024 Dec 24 18:00:24.213 |
| Minimum distance | 4.881 km |
| Height difference | -1.361 km |
| Relative speed | 9.519 km/s |
| Angle between velocity vectors | 80° |
| Geographic position | 70.1°S, 142.3°W |
| Height | 812 km |
|