| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30566 | 13468 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:16 | 2024 Dec 23 08:25 |
| Time of closest approach (UTC) | 2024 Dec 23 21:19:35.153 |
| Minimum distance | 2.744 km |
| Height difference | 0.992 km |
| Relative speed | 14.766 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 51.3°S, 9.1°W |
| Height | 921 km |
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