| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12168 | 30956 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 13:02 | 2024 Dec 22 01:56 |
| Time of closest approach (UTC) | 2024 Dec 28 19:35:30.651 |
| Minimum distance | 3.047 km |
| Height difference | 2.658 km |
| Relative speed | 14.413 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 49.6°N, 3.6°W |
| Height | 889 km |
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