| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30903 | 12690 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 17 10:31 | 2024 Dec 22 13:23 |
| Time of closest approach (UTC) | 2024 Dec 29 15:05:23.578 |
| Minimum distance | 4.769 km |
| Height difference | 3.675 km |
| Relative speed | 13.889 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 80.6°N, 176.1°W |
| Height | 961 km |
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