| 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 08 12:00 | 2023 Jun 08 05:38 |
| Time of closest approach (UTC) | 2023 Apr 07 22:40:42.593 |
| Minimum distance | 3.456 km |
| Height difference | 2.866 km |
| Relative speed | 14.885 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 56.7°S, 130.0°E |
| Height | 801 km |
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