| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12673 | 30691 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:38 | 2024 Dec 23 01:02 |
| Time of closest approach (UTC) | 2024 Dec 26 22:50:52.876 |
| Minimum distance | 3.120 km |
| Height difference | 1.392 km |
| Relative speed | 14.920 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 40.3°N, 137.3°E |
| Height | 847 km |
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