| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 42180 | 31558 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 18 00:13 | 2024 Dec 23 03:51 |
| Time of closest approach (UTC) | 2024 Dec 27 15:22:08.617 |
| Minimum distance | 2.709 km |
| Height difference | 0.902 km |
| Relative speed | 14.990 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 71.9°S, 56.3°W |
| Height | 730 km |
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