| Primary satellite | Secondary satellite |
| Name | NOAA 19 | deb Chang Zheng 4 |
| Spacetrack catalog number | 33591 | 20848 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Mar 02 19:10 | 2021 Mar 02 08:11 |
| Time of closest approach (UTC) | 2021 Jan 21 10:48:59.960 |
| Minimum distance | 0.808 km |
| Height difference | 0.440 km |
| Relative speed | 14.686 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 30.7°N, 59.4°W |
| Height | 846 km |
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