| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30218 | 12772 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:53 | 2024 Dec 23 06:13 |
| Time of closest approach (UTC) | 2024 Dec 28 01:55:33.709 |
| Minimum distance | 2.312 km |
| Height difference | 1.613 km |
| Relative speed | 14.844 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 77.2°N, 175.2°E |
| Height | 822 km |
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