| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 38829 | 13476 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 00:28 | 2024 Dec 23 02:43 |
| Time of closest approach (UTC) | 2024 Dec 23 21:14:40.388 |
| Minimum distance | 4.364 km |
| Height difference | -4.222 km |
| Relative speed | 14.451 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 81.1°N, 133.8°W |
| Height | 902 km |
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