| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 36255 | 14357 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 17 10:45 | 2024 Dec 22 15:55 |
| Time of closest approach (UTC) | 2024 Dec 24 15:47:56.855 |
| Minimum distance | 4.758 km |
| Height difference | -3.696 km |
| Relative speed | 14.839 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 57.2°S, 74.4°W |
| Height | 845 km |
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