| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 30640 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 23 03:02 |
| Time of closest approach (UTC) | 2024 Dec 29 13:49:07.585 |
| Minimum distance | 3.692 km |
| Height difference | 2.864 km |
| Relative speed | 14.879 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 66.0°N, 98.3°E |
| Height | 836 km |
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