Parameters from Lorentzian fits of time-distance and LCT divergence power spectra for Snodgrass (1984) and fast tracking rates. Top row: dispersion relation and half-width at half maximum (HWHM). Bottom row: horizontal velocity components of background flow. The tracking rate difference of 60 m s⁻¹ has been subtracted from the u_x values for Snodgrass (1984) tracking to facilitate the comparison with fast tracking. Values for kR_⊙ > 230 (Snodgrass tracking) and kR_⊙ > 271 (fast tracking) are omitted, as the fits are not stable in that regime.