| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12727 | 31022 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:41 | 2024 Dec 17 09:09 |
| Time of closest approach (UTC) | 2024 Dec 28 21:54:32.008 |
| Minimum distance | 2.418 km |
| Height difference | -0.097 km |
| Relative speed | 14.713 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 69.1°N, 140.2°E |
| Height | 949 km |
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