| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12669 | 30183 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 23 02:42 |
| Time of closest approach (UTC) | 2024 Dec 26 22:06:26.591 |
| Minimum distance | 4.146 km |
| Height difference | 2.223 km |
| Relative speed | 14.815 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 41.5°S, 15.4°W |
| Height | 884 km |
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