Facula-dominated and sunspot-dominated events in the OMI and TROPOMI line activity indices. The upper panels show the OMI data: the facula and active network-dominating case (left panel) in comparison to the sunspot-dominating case (right panel). The lower panels show the same for TROPOMI. In all panels, the shown values are normalized to a low-activity epoch and averaged over multiple events (N = 4–13 passages of active regions, as indicated in the upper-left corners of each panel). Black lines follow the Balmer activity indices, blue lines show the CH430nm indices, and red lines mark changes in TSI. We note the different Y scales in the OMI and TROPOMI plots.