| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35169 | 34911 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 00:23 | 2024 Dec 23 00:10 |
| Time of closest approach (UTC) | 2024 Dec 26 10:43:39.953 |
| Minimum distance | 3.579 km |
| Height difference | 0.318 km |
| Relative speed | 3.498 km/s |
| Angle between velocity vectors | 27° |
| Geographic position | 22.2°S, 124.2°E |
| Height | 759 km |
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