| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 29798 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 23 03:44 |
| Time of closest approach (UTC) | 2024 Dec 26 06:00:34.703 |
| Minimum distance | 4.424 km |
| Height difference | 4.211 km |
| Relative speed | 14.844 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 72.1°N, 78.8°E |
| Height | 853 km |
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