| Primary satellite | Secondary satellite |
| Name | NOAA 19 | deb Chang Zheng 4 |
| Spacetrack catalog number | 33591 | 20850 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Mar 02 19:10 | 2021 Mar 02 10:05 |
| Time of closest approach (UTC) | 2021 Jan 23 20:20:02.159 |
| Minimum distance | 11.982 km |
| Height difference | -4.714 km |
| Relative speed | 4.063 km/s |
| Angle between velocity vectors | 32° |
| Geographic position | 80.7°N, 106.5°W |
| Height | 865 km |
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