| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12669 | 30646 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 23 00:37 |
| Time of closest approach (UTC) | 2024 Dec 24 05:12:23.864 |
| Minimum distance | 4.925 km |
| Height difference | -4.696 km |
| Relative speed | 14.630 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 80.8°S, 74.2°W |
| Height | 871 km |
|