| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12658 | 31254 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:26 | 2024 Dec 21 02:28 |
| Time of closest approach (UTC) | 2024 Dec 25 13:00:24.119 |
| Minimum distance | 3.832 km |
| Height difference | -0.577 km |
| Relative speed | 14.801 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 79.9°S, 117.0°W |
| Height | 811 km |
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