| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 33718 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 20 22:38 |
| Time of closest approach (UTC) | 2024 Dec 27 02:12:36.270 |
| Minimum distance | 3.878 km |
| Height difference | -3.866 km |
| Relative speed | 14.861 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 45.7°N, 119.6°E |
| Height | 854 km |
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