| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 36681 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 20 06:05 |
| Time of closest approach (UTC) | 2024 Dec 29 00:58:30.990 |
| Minimum distance | 2.128 km |
| Height difference | -2.019 km |
| Relative speed | 13.397 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 81.1°S, 1.9°W |
| Height | 861 km |
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