| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35824 | 29733 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 06:36 | 2024 Dec 22 18:09 |
| Time of closest approach (UTC) | 2024 Dec 30 01:17:34.126 |
| Minimum distance | 0.749 km |
| Height difference | 0.379 km |
| Relative speed | 14.678 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 16.8°S, 7.7°W |
| Height | 1048 km |
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