| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34430 | 30688 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:42 | 2024 Dec 20 17:35 |
| Time of closest approach (UTC) | 2024 Dec 29 10:48:31.488 |
| Minimum distance | 2.304 km |
| Height difference | -2.163 km |
| Relative speed | 14.496 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 69.7°S, 165.0°W |
| Height | 815 km |
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