| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33762 | 37046 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:49 | 2024 Dec 20 19:06 |
| Time of closest approach (UTC) | 2024 Dec 26 07:55:26.385 |
| Minimum distance | 3.655 km |
| Height difference | -3.091 km |
| Relative speed | 14.284 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 72.0°S, 42.7°W |
| Height | 808 km |
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