| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31420 | 35726 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jan 27 12:38 | 2023 Jan 25 11:37 |
| Time of closest approach (UTC) | 2022 Dec 01 23:39:02.882 |
| Minimum distance | 76.007 km |
| Height difference | -1.425 km |
| Relative speed | 14.979 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 46.9°N, 117.2°E |
| Height | 686 km |
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