| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 31757 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 22 07:19 |
| Time of closest approach (UTC) | 2024 Dec 28 16:30:18.878 |
| Minimum distance | 3.916 km |
| Height difference | -2.078 km |
| Relative speed | 14.316 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 81.2°S, 126.1°E |
| Height | 861 km |
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