| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 | FENGYUN 1C DEB |
| Spacetrack catalog number | 18095 | 38149 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:05 | 2024 Dec 16 17:49 |
| Time of closest approach (UTC) | 2024 Dec 27 15:15:56.832 |
| Minimum distance | 4.052 km |
| Height difference | -2.057 km |
| Relative speed | 6.610 km/s |
| Angle between velocity vectors | 52° |
| Geographic position | 61.4°N, 24.3°E |
| Height | 782 km |
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