The Birmingham Solar Oscillations Network (BiSON) provides high-quality high-cadence solar radial-velocity observations from as far back in time as 1976. However, 1985 is the earliest period for which at least three sites were observing regularly. The full network was commissioned by 1992.
This data portal makes available both calibrated velocity residuals, and machine-readable versions of published results.
Please use the menu on the left to select your desired data type.