| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35789 | 31615 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 21 21:55 |
| Time of closest approach (UTC) | 2024 Dec 27 07:33:08.365 |
| Minimum distance | 3.746 km |
| Height difference | -2.767 km |
| Relative speed | 14.849 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 17.9°S, 176.9°W |
| Height | 812 km |
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