| Primary satellite | Secondary satellite |
| Name | CZ-4B R/B | SL-16 DEB |
| Spacetrack catalog number | 27432 | 39907 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 19:15 | 2021 Mar 04 14:10 |
| Time of closest approach (UTC) | 2021 Jan 20 00:02:50.014 |
| Minimum distance | 37.649 km |
| Height difference | -4.164 km |
| Relative speed | 9.450 km/s |
| Angle between velocity vectors | 79° |
| Geographic position | 67.0°N, 113.6°E |
| Height | 893 km |
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