| Primary satellite | Secondary satellite |
| Name | CAS-6 | STARS |
| Spacetrack catalog number | 44881 | 33498 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2021 Feb 28 01:08 | 2021 Feb 27 21:21 |
| Time of closest approach (UTC) | 2021 Jan 19 00:55:11.922 |
| Minimum distance | 5.500 km |
| Height difference | 4.599 km |
| Relative speed | 14.578 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 55.5°S, 135.3°E |
| Height | 656 km |
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