| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35824 | 46444 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 06:36 | 2024 Dec 17 19:21 |
| Time of closest approach (UTC) | 2024 Dec 26 06:41:25.175 |
| Minimum distance | 3.209 km |
| Height difference | -2.346 km |
| Relative speed | 9.481 km/s |
| Angle between velocity vectors | 78° |
| Geographic position | 69.7°N, 147.6°E |
| Height | 766 km |
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