| Primary satellite | Secondary satellite |
| Name | STRAND 1 | Star 20 E-31 |
| Spacetrack catalog number | 39090 | 14155 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2023 Jun 05 02:02 | 2023 Jun 05 04:30 |
| Time of closest approach (UTC) | 2023 Apr 07 22:40:54.219 |
| Minimum distance | 2.867 km |
| Height difference | 2.644 km |
| Relative speed | 14.885 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 56.3°S, 129.8°E |
| Height | 801 km |
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