| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12669 | 31211 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 20 08:33 |
| Time of closest approach (UTC) | 2024 Dec 24 17:10:51.698 |
| Minimum distance | 4.781 km |
| Height difference | -0.451 km |
| Relative speed | 14.780 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 78.0°S, 91.3°E |
| Height | 872 km |
|