| Primary satellite | Secondary satellite |
| Name | STARS | Cosmos 1726 Rocket |
| Spacetrack catalog number | 33498 | 16496 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 Jun 03 16:58 | 2023 Jun 03 21:19 |
| Time of closest approach (UTC) | 2023 Apr 08 06:38:26.978 |
| Minimum distance | 7.676 km |
| Height difference | 3.099 km |
| Relative speed | 15.080 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 66.8°N, 96.5°W |
| Height | 637 km |
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