| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Delta 139 |
| Spacetrack catalog number | 35169 | 13570 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 00:23 | 2024 Dec 23 00:31 |
| Time of closest approach (UTC) | 2024 Dec 28 22:00:33.203 |
| Minimum distance | 3.720 km |
| Height difference | 2.983 km |
| Relative speed | 14.818 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 1.2°N, 40.8°W |
| Height | 722 km |
|