| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 33678 | 37998 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 13:47 | 2024 Dec 20 06:10 |
| Time of closest approach (UTC) | 2024 Dec 28 05:52:25.526 |
| Minimum distance | 4.053 km |
| Height difference | 3.185 km |
| Relative speed | 13.439 km/s |
| Angle between velocity vectors | 128° |
| Geographic position | 74.1°N, 67.1°E |
| Height | 764 km |
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