| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 17618 | 30321 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 15:14 | 2024 Dec 22 23:56 |
| Time of closest approach (UTC) | 2024 Dec 26 00:18:54.723 |
| Minimum distance | 2.223 km |
| Height difference | 1.420 km |
| Relative speed | 14.468 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 81.2°S, 16.4°W |
| Height | 878 km |
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