| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1275 DEB |
| Spacetrack catalog number | 30462 | 39954 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 23:50 | 2024 Dec 18 12:44 |
| Time of closest approach (UTC) | 2024 Dec 26 23:44:37.142 |
| Minimum distance | 4.251 km |
| Height difference | -0.282 km |
| Relative speed | 14.981 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 43.6°N, 90.1°E |
| Height | 784 km |
|