Degradation of brightening events in band 3 (top row) and band 6 (bottom row), with the respective spatial resolution corresponding to array configuration C3. The T_b excess of brightening events at the original resolution plotted against the T_b excess at degraded resolution. The contour lines show the levels of 0.01, 0.05, 0.1, 0.15, 0.2, 0.5, and 0.75 of the density plot. The circles connected by the solid line show the median values (50th percentile) for the respective bin, and their error bars indicate plus and minus 1σ (e.g., 84th and 16th percentile). The dashed line marks a linear fit to the median values, and the dash-dotted lines mark linear fits to the ±1σ values. The dotted line marks the ratio of one-to-one for reference.