| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 29784 | 34911 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 17:28 | 2024 Dec 23 00:10 |
| Time of closest approach (UTC) | 2024 Dec 25 05:20:10.745 |
| Minimum distance | 0.914 km |
| Height difference | 0.809 km |
| Relative speed | 8.664 km/s |
| Angle between velocity vectors | 71° |
| Geographic position | 67.9°S, 113.6°W |
| Height | 777 km |
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