Weight function for the multi-view synoptic maps. The central plateau corresponds to a four-hour temporal width with a polynomial drop-off to a 5% contribution at the adjacent central meridian. Dashed black lines mark the central meridians and the solid lines mark the transition between adjacent magnetograms. The individual weight functions combine to smooth effective weight functions (red line, only central WF shown) during the weighting process. The effective weight function is the shown weight function divided by the sum of the weights.