| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 38157 | 13808 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:07 | 2024 Dec 23 07:25 |
| Time of closest approach (UTC) | 2024 Dec 27 07:04:09.212 |
| Minimum distance | 3.689 km |
| Height difference | -3.663 km |
| Relative speed | 14.388 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 79.6°S, 140.5°E |
| Height | 923 km |
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