| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33841 | 30346 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:25 | 2024 Dec 23 05:18 |
| Time of closest approach (UTC) | 2024 Dec 25 17:14:12.419 |
| Minimum distance | 4.091 km |
| Height difference | -1.156 km |
| Relative speed | 12.956 km/s |
| Angle between velocity vectors | 121° |
| Geographic position | 74.1°S, 125.9°E |
| Height | 798 km |
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