| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 | FENGYUN 1C DEB |
| Spacetrack catalog number | 18095 | 47001 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:05 | 2024 Dec 18 08:13 |
| Time of closest approach (UTC) | 2024 Dec 26 15:01:08.057 |
| Minimum distance | 4.260 km |
| Height difference | -0.784 km |
| Relative speed | 8.427 km/s |
| Angle between velocity vectors | 69° |
| Geographic position | 67.0°S, 138.4°W |
| Height | 812 km |
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