| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 37021 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 21 21:12 |
| Time of closest approach (UTC) | 2024 Dec 30 01:32:44.050 |
| Minimum distance | 4.894 km |
| Height difference | 3.826 km |
| Relative speed | 14.268 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 81.6°N, 171.7°E |
| Height | 847 km |
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