| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12669 | 29997 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 22 14:40 |
| Time of closest approach (UTC) | 2024 Dec 25 21:27:50.966 |
| Minimum distance | 3.559 km |
| Height difference | -1.934 km |
| Relative speed | 14.187 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 81.1°N, 138.9°W |
| Height | 949 km |
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