| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 17642 | 29760 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:03 | 2024 Dec 22 23:34 |
| Time of closest approach (UTC) | 2024 Dec 27 23:25:15.698 |
| Minimum distance | 0.209 km |
| Height difference | -0.099 km |
| Relative speed | 14.920 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 77.7°N, 145.7°E |
| Height | 788 km |
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