| Primary satellite | Secondary satellite |
| Name | STARS | Cosmos 1812 Rocket |
| Spacetrack catalog number | 33498 | 17296 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 May 29 04:05 | 2023 May 29 09:59 |
| Time of closest approach (UTC) | 2023 Mar 24 15:36:25.539 |
| Minimum distance | 799.289 km |
| Height difference | -2.445 km |
| Relative speed | 13.724 km/s |
| Angle between velocity vectors | 132° |
| Geographic position | 76.6°S, 72.5°E |
| Height | 659 km |
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