| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30514 | 13803 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:36 | 2024 Dec 23 07:00 |
| Time of closest approach (UTC) | 2024 Dec 28 19:19:02.096 |
| Minimum distance | 3.852 km |
| Height difference | -2.422 km |
| Relative speed | 14.427 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 81.5°S, 102.8°E |
| Height | 912 km |
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