SOL2021-05-08T18 event. Top left panel: normalized GOES and STIX time profiles. Top right panel: electron flux contour plots, provided by the MEM_GE algorithm from STIX electron visibilities, overlaid on the AIA map, which has been re-projected to match the viewing angle from STIX. The 10, 30, 50, 70, and 90% contour levels of the reconstructed electron flux (25–28 keV) are plotted in magenta. Middle panels: count images obtained by appying the MEM_GE algorithm to visibilities recorded at different energies. The units of the map pixels are counts cm⁻² s⁻¹ keV⁻¹ arcsec⁻². Bottom panels: electron flux images in different energy channels as reconstructed by the MEM_GE algorithm. The units of the map pixels are 10⁵⁰ × electrons cm⁻² s⁻¹ keV⁻¹ arcsec⁻².