| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | CSL-04 Debris |
| Spacetrack catalog number | 30947 | 25733 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:15 | 2024 Dec 23 02:21 |
| Time of closest approach (UTC) | 2024 Dec 26 10:37:42.640 |
| Minimum distance | 2.781 km |
| Height difference | 2.573 km |
| Relative speed | 14.569 km/s |
| Angle between velocity vectors | 158° |
| Geographic position | 35.2°N, 25.5°W |
| Height | 841 km |
|