| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31569 | 34613 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 13:34 | 2024 Dec 21 06:45 |
| Time of closest approach (UTC) | 2024 Dec 23 15:44:26.992 |
| Minimum distance | 4.315 km |
| Height difference | -4.307 km |
| Relative speed | 14.983 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 33.9°N, 117.9°W |
| Height | 800 km |
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