| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1275 DEB |
| Spacetrack catalog number | 36273 | 39968 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 17 18:45 | 2024 Dec 20 19:02 |
| Time of closest approach (UTC) | 2024 Dec 29 09:11:55.000 |
| Minimum distance | 2.596 km |
| Height difference | 2.589 km |
| Relative speed | 14.766 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 63.0°N, 56.0°W |
| Height | 919 km |
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