| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31087 | 34554 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:50 | 2024 Dec 22 17:11 |
| Time of closest approach (UTC) | 2024 Dec 27 21:03:07.946 |
| Minimum distance | 3.129 km |
| Height difference | -0.373 km |
| Relative speed | 14.701 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 62.7°N, 43.4°W |
| Height | 782 km |
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