| Primary satellite | Secondary satellite |
| Name | NOSS 3-2 (C) | deb Chang Zheng 4 |
| Spacetrack catalog number | 28097 | 20912 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2021 Jan 09 18:12 | 2021 Jan 15 17:51 |
| Time of closest approach (UTC) | 2020 Nov 30 08:05:56.441 |
| Minimum distance | 43.426 km |
| Height difference | 1.288 km |
| Relative speed | 4.710 km/s |
| Angle between velocity vectors | 36° |
| Geographic position | 15.6°N, 151.3°E |
| Height | 804 km |
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