| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30688 | 34317 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 17:35 | 2024 Dec 23 04:44 |
| Time of closest approach (UTC) | 2024 Dec 27 04:37:42.484 |
| Minimum distance | 1.434 km |
| Height difference | 0.786 km |
| Relative speed | 14.984 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 25.4°S, 79.2°E |
| Height | 800 km |
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