| Primary satellite | Secondary satellite |
| Name | Sich 1 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23659 | 30190 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 20 11:19 | 2021 Jan 20 12:51 |
| Time of closest approach (UTC) | 2020 Dec 04 23:30:51.108 |
| Minimum distance | 38.024 km |
| Height difference | -5.519 km |
| Relative speed | 14.168 km/s |
| Angle between velocity vectors | 139° |
| Geographic position | 80.8°N, 90.5°W |
| Height | 636 km |
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