| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 38212 | 36247 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 14:24 | 2024 Dec 22 07:12 |
| Time of closest approach (UTC) | 2024 Dec 26 20:01:56.239 |
| Minimum distance | 3.829 km |
| Height difference | -1.621 km |
| Relative speed | 3.984 km/s |
| Angle between velocity vectors | 31° |
| Geographic position | 37.5°S, 5.7°W |
| Height | 692 km |
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