| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30905 | 12703 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 10:35 | 2024 Dec 22 17:13 |
| Time of closest approach (UTC) | 2024 Dec 26 03:21:25.555 |
| Minimum distance | 2.509 km |
| Height difference | 1.812 km |
| Relative speed | 14.816 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 74.1°N, 138.6°E |
| Height | 865 km |
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