| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 31068 | 20087 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 17 17:10 | 2024 Dec 22 12:44 |
| Time of closest approach (UTC) | 2024 Dec 24 00:31:48.747 |
| Minimum distance | 2.894 km |
| Height difference | 0.330 km |
| Relative speed | 14.721 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 74.4°S, 77.9°W |
| Height | 949 km |
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