| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 33719 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 22 16:00 |
| Time of closest approach (UTC) | 2024 Dec 25 00:22:28.185 |
| Minimum distance | 4.844 km |
| Height difference | -4.801 km |
| Relative speed | 14.814 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 74.9°S, 9.9°W |
| Height | 854 km |
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