| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 37530 | 30202 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 01:13 | 2024 Dec 23 05:10 |
| Time of closest approach (UTC) | 2024 Dec 24 10:11:45.656 |
| Minimum distance | 4.069 km |
| Height difference | -3.675 km |
| Relative speed | 14.915 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 16.6°N, 18.9°E |
| Height | 765 km |
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