| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34910 | 36707 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:21 | 2024 Dec 20 09:16 |
| Time of closest approach (UTC) | 2024 Dec 25 16:50:42.244 |
| Minimum distance | 4.562 km |
| Height difference | -1.615 km |
| Relative speed | 12.407 km/s |
| Angle between velocity vectors | 111° |
| Geographic position | 73.6°N, 27.1°E |
| Height | 822 km |
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