| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | ONEWEB-0257 |
| Spacetrack catalog number | 31979 | 48975 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:39 | 2024 Dec 23 09:13 |
| Time of closest approach (UTC) | 2024 Dec 25 08:08:32.785 |
| Minimum distance | 9.042 km |
| Height difference | 0.281 km |
| Relative speed | 12.496 km/s |
| Angle between velocity vectors | 121° |
| Geographic position | 80.2°S, 47.9°W |
| Height | 1227 km |
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