| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 29773 | 35647 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 09:12 | 2024 Dec 21 00:26 |
| Time of closest approach (UTC) | 2024 Dec 24 01:21:45.452 |
| Minimum distance | 2.510 km |
| Height difference | -2.510 km |
| Relative speed | 11.053 km/s |
| Angle between velocity vectors | 96° |
| Geographic position | 72.4°S, 53.9°E |
| Height | 810 km |
|