| Primary satellite | Secondary satellite |
| Name | CZ-4B R/B | VZLUSAT 1 |
| Spacetrack catalog number | 33410 | 42790 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 14 21:53 | 2021 Jan 14 20:31 |
| Time of closest approach (UTC) | 2020 Nov 30 05:55:16.040 |
| Minimum distance | 788.333 km |
| Height difference | 3.956 km |
| Relative speed | 7.958 km/s |
| Angle between velocity vectors | 63° |
| Geographic position | 82.2°S, 102.8°W |
| Height | 516 km |
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