| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 31834 | 12667 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 16 21:40 | 2024 Dec 22 17:18 |
| Time of closest approach (UTC) | 2024 Dec 27 08:10:13.363 |
| Minimum distance | 1.907 km |
| Height difference | 1.103 km |
| Relative speed | 14.725 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 68.9°N, 132.9°W |
| Height | 957 km |
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