General overview of the CME occurrence and CHs for the two episodes, rotation #1 (left panel) and rotation #2 (right panel), overlaid on AIA 193 Å images. Given are the CH locations with their center of mass (CM) and apex distances to the active regions (AR) from which the CMEs were launched (see details in Sect. 2.1). For each CME the 3D speed information is given as derived from a linear fit to sequential GCS reconstructions. For rotation #1 we observe four CMEs (CME1.1–1.4) and for rotation #2 five CMEs (CME2.1–2.4+5). We note that for CME 2.1 the corresponding active region is already behind the western limb, and therefore no AR distance is given. The image dates were chosen such that the CH is centrally located for better visibility.