| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 31663 | 14557 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:19 | 2024 Dec 22 08:51 |
| Time of closest approach (UTC) | 2024 Dec 24 07:48:51.120 |
| Minimum distance | 2.930 km |
| Height difference | 1.851 km |
| Relative speed | 14.853 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 71.7°N, 134.5°W |
| Height | 792 km |
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