| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34814 | 32181 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:55 | 2024 Dec 23 15:03 |
| Time of closest approach (UTC) | 2024 Dec 29 00:28:19.209 |
| Minimum distance | 7.009 km |
| Height difference | 0.352 km |
| Relative speed | 14.741 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 62.6°S, 112.4°E |
| Height | 794 km |
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