| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12658 | 30448 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:26 | 2024 Dec 22 18:43 |
| Time of closest approach (UTC) | 2024 Dec 24 06:39:17.912 |
| Minimum distance | 1.048 km |
| Height difference | 1.027 km |
| Relative speed | 13.991 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 81.2°S, 28.2°W |
| Height | 812 km |
|