| Primary satellite | Secondary satellite |
| Name | JY1SAT | STARLINK-4091 |
| Spacetrack catalog number | 43803 | 52830 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2025 Jul 11 14:53 | 2025 Jul 11 18:36 |
| Time of closest approach (UTC) | 2024 Jun 18 17:58:13.109 |
| Minimum distance | 6476.732 km |
| Height difference | -23.886 km |
| Relative speed | 14.959 km/s |
| Angle between velocity vectors | 158° |
| Geographic position | 59.2°N, 38.8°E |
| Height | 534 km |
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