| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34022 | 31097 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:37 | 2024 Dec 22 05:44 |
| Time of closest approach (UTC) | 2024 Dec 28 14:46:55.829 |
| Minimum distance | 1.886 km |
| Height difference | 0.218 km |
| Relative speed | 10.503 km/s |
| Angle between velocity vectors | 89° |
| Geographic position | 71.7°S, 175.4°E |
| Height | 784 km |
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