| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38149 | 33995 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 16 17:49 | 2024 Dec 22 13:49 |
| Time of closest approach (UTC) | 2024 Dec 23 18:51:39.581 |
| Minimum distance | 3.588 km |
| Height difference | -3.343 km |
| Relative speed | 6.327 km/s |
| Angle between velocity vectors | 50° |
| Geographic position | 60.0°N, 179.4°W |
| Height | 761 km |
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