| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30822 | 33944 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 00:42 | 2024 Dec 22 17:52 |
| Time of closest approach (UTC) | 2024 Dec 27 10:56:26.297 |
| Minimum distance | 4.202 km |
| Height difference | 0.929 km |
| Relative speed | 14.612 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 66.1°S, 67.5°W |
| Height | 847 km |
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