| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 17642 | 30409 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:03 | 2024 Dec 23 00:26 |
| Time of closest approach (UTC) | 2024 Dec 26 04:49:30.799 |
| Minimum distance | 0.280 km |
| Height difference | 0.236 km |
| Relative speed | 14.875 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 80.4°S, 99.4°W |
| Height | 791 km |
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