| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31087 | 35000 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:50 | 2024 Dec 21 01:05 |
| Time of closest approach (UTC) | 2024 Dec 30 01:27:13.963 |
| Minimum distance | 4.161 km |
| Height difference | -3.110 km |
| Relative speed | 15.091 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 18.1°S, 90.8°W |
| Height | 622 km |
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