EPD peak intensity at 44 keV plotted against (a) the estimated GOES peak flux and (b) the STIX peak count rate in the 15–25 keV band. The green diamonds correspond to the well-connected events (i.e. events with a separation in longitude between the STIX source and the footpoint of magnetic connectivity of less than 20°), while the rest of the sample is shown with orange diamonds. The plots also indicate the number of events and the correlation coefficients for all events in black, and for the well-connected events in green.