| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 12658 | 31987 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:26 | 2024 Dec 23 08:23 |
| Time of closest approach (UTC) | 2024 Dec 24 03:12:56.922 |
| Minimum distance | 6.054 km |
| Height difference | -0.539 km |
| Relative speed | 10.515 km/s |
| Angle between velocity vectors | 90° |
| Geographic position | 78.6°S, 66.7°W |
| Height | 813 km |
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