| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1275 DEB |
| Spacetrack catalog number | 30745 | 39964 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 19:37 | 2024 Dec 23 08:44 |
| Time of closest approach (UTC) | 2024 Dec 24 04:44:18.915 |
| Minimum distance | 1.301 km |
| Height difference | 1.002 km |
| Relative speed | 14.874 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 78.7°S, 7.8°E |
| Height | 673 km |
|