Frequency variation in the Saturnian k₂ Love number from astrometric data. Black points are the measurements that allow for different k₂ values at each tidal forcing frequency, while the horizontal gray bar is the measurement found assuming a constant value of k₂. The orange and blue lines are the dynamical tidal response for two different Saturn models, with thick and thin lines corresponding to higher and lower viscosities, respectively. The dashed green line shows the hydrostatic k₂₂ = 0.4130 computed by Wahl et al. (2017).