| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 42120 | 36692 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 05:14 | 2024 Dec 23 02:23 |
| Time of closest approach (UTC) | 2024 Dec 26 06:43:14.972 |
| Minimum distance | 1.993 km |
| Height difference | -1.389 km |
| Relative speed | 14.506 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 78.2°N, 86.1°W |
| Height | 981 km |
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