| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1408 DEB |
| Spacetrack catalog number | 30231 | 50404 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 15:05 | 2024 Dec 23 01:06 |
| Time of closest approach (UTC) | 2024 Dec 23 16:19:32.953 |
| Minimum distance | 4.008 km |
| Height difference | -3.163 km |
| Relative speed | 14.371 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 81.1°N, 15.8°W |
| Height | 940 km |
|