| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38149 | 35287 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 16 17:49 | 2024 Dec 20 20:36 |
| Time of closest approach (UTC) | 2024 Dec 27 21:59:04.817 |
| Minimum distance | 1.870 km |
| Height difference | 1.467 km |
| Relative speed | 14.829 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 57.1°N, 74.0°W |
| Height | 781 km |
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