| Primary satellite | Secondary satellite |
| Name | STARS | IRIDIUM 33 DEB |
| Spacetrack catalog number | 33498 | 39595 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Mar 03 09:46 | 2021 Feb 27 16:51 |
| Time of closest approach (UTC) | 2021 Jan 17 19:27:34.022 |
| Minimum distance | 30.236 km |
| Height difference | 2.857 km |
| Relative speed | 14.961 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 69.6°S, 2.3°E |
| Height | 663 km |
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