| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1275 DEB |
| Spacetrack catalog number | 31949 | 39954 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 17:28 | 2024 Dec 18 12:44 |
| Time of closest approach (UTC) | 2024 Dec 24 06:30:39.874 |
| Minimum distance | 3.322 km |
| Height difference | -2.828 km |
| Relative speed | 14.970 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 70.7°N, 7.5°E |
| Height | 783 km |
|