| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12658 | 29998 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:26 | 2024 Dec 22 15:22 |
| Time of closest approach (UTC) | 2024 Dec 28 15:26:15.583 |
| Minimum distance | 4.032 km |
| Height difference | 3.680 km |
| Relative speed | 14.901 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 26.5°S, 118.9°W |
| Height | 806 km |
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