| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12698 | 29855 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:12 | 2024 Dec 22 20:40 |
| Time of closest approach (UTC) | 2024 Dec 29 01:25:07.407 |
| Minimum distance | 4.937 km |
| Height difference | 4.889 km |
| Relative speed | 14.536 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 81.9°S, 49.9°W |
| Height | 820 km |
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