| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33986 | 30403 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:32 | 2024 Dec 23 03:03 |
| Time of closest approach (UTC) | 2024 Dec 24 00:56:21.026 |
| Minimum distance | 4.910 km |
| Height difference | -4.263 km |
| Relative speed | 14.885 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 32.2°S, 38.3°W |
| Height | 797 km |
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