| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 29938 | 17625 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:40 | 2024 Dec 22 23:36 |
| Time of closest approach (UTC) | 2024 Dec 27 05:12:16.586 |
| Minimum distance | 1.771 km |
| Height difference | 1.747 km |
| Relative speed | 14.579 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 80.8°N, 73.6°E |
| Height | 895 km |
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