| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35462 | 30059 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 23 01:21 |
| Time of closest approach (UTC) | 2024 Dec 25 03:42:55.427 |
| Minimum distance | 3.554 km |
| Height difference | 2.337 km |
| Relative speed | 14.624 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 68.9°N, 85.0°E |
| Height | 856 km |
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