| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12669 | 38137 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 18 22:54 |
| Time of closest approach (UTC) | 2024 Dec 26 09:14:12.307 |
| Minimum distance | 4.618 km |
| Height difference | 4.079 km |
| Relative speed | 14.774 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 38.4°N, 2.1°W |
| Height | 908 km |
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