| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31949 | 35060 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 17:28 | 2024 Dec 19 06:18 |
| Time of closest approach (UTC) | 2024 Dec 27 19:29:13.353 |
| Minimum distance | 4.240 km |
| Height difference | 0.813 km |
| Relative speed | 14.972 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 30.9°N, 152.7°E |
| Height | 751 km |
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