Synthetic and measured flux distributions as a function of radius 0.1–0.5 AU. The left-hand column shows the 2D synthetic distributions of B_TR² versus B_RR², the rightmost column shows the corresponding measured distribution. For both 2D histograms, a contour shows the 90th percentile of the data. The middle columns consist of corresponding 1D distributions of clock angle (top panel for each radial bin) and field vector magnitude (x R²) (bottom panel for each radial bin). For the clock angle, red (blue) curves represent anti-sunward (sunward) sector populations.