Overview of active region NOAA 12722: HMI continuum image (top left), HMI magnetogram (top right), AIA UV λ1600 Å image (bottom left), and AIA EUV He IIλ304 Å image (bottom right) observed at 08:05 UT on 11 September 2018. The magnetogram was clipped between ±250 G. The black and white boxes represent the central 100″ × 100″ of the FOV scanned by the VTT echelle spectrograph (see online movie with a one-minute cadence for a detailed view).