| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 47015 | 35974 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 20:10 | 2024 Dec 20 13:41 |
| Time of closest approach (UTC) | 2024 Dec 29 09:51:02.202 |
| Minimum distance | 4.254 km |
| Height difference | -2.074 km |
| Relative speed | 12.141 km/s |
| Angle between velocity vectors | 106° |
| Geographic position | 73.4°N, 105.3°E |
| Height | 590 km |
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