| Primary satellite | Secondary satellite |
| Name | STARS | SL-16 DEB |
| Spacetrack catalog number | 33498 | 39708 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Feb 23 23:11 | 2021 Feb 23 09:51 |
| Time of closest approach (UTC) | 2021 Jan 22 11:28:56.874 |
| Minimum distance | 2.226 km |
| Height difference | 0.636 km |
| Relative speed | 13.400 km/s |
| Angle between velocity vectors | 126° |
| Geographic position | 71.1°S, 120.1°E |
| Height | 665 km |
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