| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31087 | 35028 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:50 | 2024 Dec 22 02:20 |
| Time of closest approach (UTC) | 2024 Dec 30 00:49:40.801 |
| Minimum distance | 2.751 km |
| Height difference | -2.543 km |
| Relative speed | 14.941 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 21.7°S, 92.7°E |
| Height | 721 km |
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