Normalized cross helicity σ_c (left) and normalized residual energy σ_r (right) of wave band 5 (T ≈ 112−56 s) as functions of the radial distance to the Sun R and the radial speed of solar wind V_r. The colors of each block represent the median values of the binned data. Text on each block shows the value of the block and the number of data points (in brackets) in the block. Bins with no more than 15 data points were discarded.