STIX images showing 50%, 70%, and 90% contours for energy bands 4−10 keV (red), 15−25 keV (blue), and 25−50 keV (dark blue). The STIX contours are rotated to the point of view of SDO and overlaid on AIA images. The AIA images are shown for two different time steps: top row – 15:25 UT, and bottom row – 15:26 UT; and at two different AIA filters: left column – 171 Å, and right column – 1600 Å.