| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 31888 | 17619 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:28 | 2024 Dec 22 06:50 |
| Time of closest approach (UTC) | 2024 Dec 27 22:58:49.715 |
| Minimum distance | 4.760 km |
| Height difference | 4.131 km |
| Relative speed | 14.829 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 77.7°N, 50.1°E |
| Height | 800 km |
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