| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33994 | 46990 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:16 | 2024 Dec 21 11:17 |
| Time of closest approach (UTC) | 2024 Dec 26 00:17:39.268 |
| Minimum distance | 2.597 km |
| Height difference | 0.440 km |
| Relative speed | 11.838 km/s |
| Angle between velocity vectors | 104° |
| Geographic position | 73.5°N, 95.0°E |
| Height | 772 km |
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