| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33905 | 37430 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:00 | 2024 Dec 20 10:36 |
| Time of closest approach (UTC) | 2024 Dec 26 13:56:39.072 |
| Minimum distance | 4.560 km |
| Height difference | -4.053 km |
| Relative speed | 14.822 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 20.6°N, 52.9°W |
| Height | 826 km |
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