| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12727 | 29977 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:41 | 2024 Dec 20 10:10 |
| Time of closest approach (UTC) | 2024 Dec 26 10:19:37.806 |
| Minimum distance | 4.877 km |
| Height difference | 4.872 km |
| Relative speed | 14.648 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 80.4°S, 112.3°E |
| Height | 911 km |
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