| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12727 | 30401 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:41 | 2024 Dec 23 02:33 |
| Time of closest approach (UTC) | 2024 Dec 24 21:58:15.603 |
| Minimum distance | 0.255 km |
| Height difference | -0.207 km |
| Relative speed | 14.795 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 68.1°S, 179.1°W |
| Height | 885 km |
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