| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12703 | 31829 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 17:13 | 2024 Dec 23 00:25 |
| Time of closest approach (UTC) | 2024 Dec 24 00:21:56.476 |
| Minimum distance | 4.285 km |
| Height difference | 1.934 km |
| Relative speed | 9.584 km/s |
| Angle between velocity vectors | 80° |
| Geographic position | 77.6°N, 52.2°W |
| Height | 865 km |
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