| Primary satellite | Secondary satellite |
| Name | CZ-4B R/B | SKYSAT C2 |
| Spacetrack catalog number | 29093 | 41773 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 15 18:08 | 2021 Jan 15 05:31 |
| Time of closest approach (UTC) | 2020 Dec 04 01:30:11.484 |
| Minimum distance | 377.201 km |
| Height difference | -4.768 km |
| Relative speed | 12.240 km/s |
| Angle between velocity vectors | 107° |
| Geographic position | 79.5°S, 104.8°E |
| Height | 483 km |
|