| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Delta 139 |
| Spacetrack catalog number | 31766 | 12225 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 05:40 | 2024 Dec 22 16:29 |
| Time of closest approach (UTC) | 2024 Dec 29 20:49:01.996 |
| Minimum distance | 2.113 km |
| Height difference | -2.002 km |
| Relative speed | 10.459 km/s |
| Angle between velocity vectors | 90° |
| Geographic position | 77.4°N, 178.9°E |
| Height | 886 km |
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