| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30829 | 12767 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 10:45 | 2024 Dec 22 23:41 |
| Time of closest approach (UTC) | 2024 Dec 24 11:02:31.299 |
| Minimum distance | 4.257 km |
| Height difference | 3.470 km |
| Relative speed | 14.780 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 67.4°N, 61.5°W |
| Height | 897 km |
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