| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30959 | 20089 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 11:11 | 2024 Dec 22 16:39 |
| Time of closest approach (UTC) | 2024 Dec 28 11:53:19.823 |
| Minimum distance | 3.160 km |
| Height difference | 3.091 km |
| Relative speed | 14.826 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 64.7°S, 9.3°E |
| Height | 852 km |
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