| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 29870 | 13619 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:21 | 2024 Dec 22 11:23 |
| Time of closest approach (UTC) | 2024 Dec 27 10:08:37.165 |
| Minimum distance | 4.341 km |
| Height difference | 2.264 km |
| Relative speed | 14.759 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 65.2°S, 108.6°E |
| Height | 895 km |
|