Radial evolution of plasma parameters and Taylor hypothesis diagnostics. Panels display (from top to bottom) solar wind flow speed V_sw, proton density n_p, proton temperature T_p, parallel proton beta β_∥, and temperature anisotropy T_⊥/T_∥. The bottom panels show the sweeping parameter ϵ and the Doppler shift factor 1 + V_A/V_⊥ (see text for definitions), used to assess the validity of the Taylor frozen-in hypothesis. All parameters are averaged over 1 hr intervals. Missing data points are omitted from the plots.