| Primary satellite | Secondary satellite |
| Name | CZ-4B R/B | Sep Motor Cover |
| Spacetrack catalog number | 27432 | 22575 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 08 18:34 | 2021 Mar 08 21:33 |
| Time of closest approach (UTC) | 2021 Jan 20 08:39:24.789 |
| Minimum distance | 4.695 km |
| Height difference | -4.510 km |
| Relative speed | 14.766 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 43.1°N, 29.0°W |
| Height | 883 km |
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