Fig. 1.

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Flare location of SOL2024-10-19T06 as seen from Earth by AIA and HXI. The image to the left shows the UV and HXR flare ribbons during the impulsive phase. The flare location is on-disk near the western limb. On the right, the EUV and HXR images at the flare peak time are shown. The AIA 131A image is shown in logarithm scaling to enhance the faint extension to the north that reaches high altitudes. The flare loop itself is saturated in this AIA image and strong diffraction pattern signatures are seen. At a higher order, the shape of flare loops can be seen in the diffraction patterns. The insert on the left figure shows the associated CME as seen by LASCO as a running difference image (from CACTus CME list). In both figures, the orange curve shows the limb as seen from the Solar Orbiter vantage point, indicating that the flare is highly occulted and neither the flare ribbons nor the flare loop can be seen from Solar Orbiter’s vantage point. The high reaching faint loops, on the other hand, are visible from Solar Orbiter. The dashed black curve gives a rough estimate as to the altitude above which the solar corona becomes visible for instruments on board Solar Orbiter.
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