| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35105 | 36053 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 18 03:42 | 2024 Dec 22 00:07 |
| Time of closest approach (UTC) | 2024 Dec 29 07:07:46.287 |
| Minimum distance | 2.073 km |
| Height difference | -0.390 km |
| Relative speed | 13.877 km/s |
| Angle between velocity vectors | 137° |
| Geographic position | 73.4°S, 148.3°E |
| Height | 770 km |
|