| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 30128 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 22 21:15 |
| Time of closest approach (UTC) | 2024 Dec 30 00:44:12.597 |
| Minimum distance | 4.909 km |
| Height difference | -3.924 km |
| Relative speed | 14.804 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 82.2°S, 68.5°E |
| Height | 865 km |
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