| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31888 | 35840 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:28 | 2024 Dec 22 14:27 |
| Time of closest approach (UTC) | 2024 Dec 26 08:50:24.474 |
| Minimum distance | 3.556 km |
| Height difference | -1.092 km |
| Relative speed | 14.871 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 28.8°S, 150.1°W |
| Height | 800 km |
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