| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33842 | 31260 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:43 | 2024 Dec 22 15:00 |
| Time of closest approach (UTC) | 2024 Dec 29 10:30:43.943 |
| Minimum distance | 6.760 km |
| Height difference | 2.588 km |
| Relative speed | 11.313 km/s |
| Angle between velocity vectors | 98° |
| Geographic position | 72.7°S, 135.5°E |
| Height | 771 km |
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