Map of the ratio of the smoothed to unsmoothed data (top), and the estimated local error σ₂₄₀ (bottom). The maps are Mollweide galactic projections for ﹩\vert b\vert < 30^{\circ }﹩, on logarithmic scales, indicated by the gray‐scale bars. Blanked pixels are regions excluded from the present analysis (see text). Positive Galactic longitudes are to the left of center.