| Primary satellite | Secondary satellite |
| Name | Cosmos 1833 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 17590 | 33640 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 20 02:06 | 2021 Jan 19 14:05 |
| Time of closest approach (UTC) | 2020 Nov 30 00:02:52.466 |
| Minimum distance | 14.924 km |
| Height difference | 3.252 km |
| Relative speed | 14.769 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 21.0°N, 115.1°E |
| Height | 837 km |
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