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Fig. 4.

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Overview of coordinated observations provided by Solar Orbiter and DKIST on 19 October 2022. (a) Relative positions of the Solar Orbiter spacecraft and the Earth. (b) Sun observed with Solar Orbiter. The coloured boxes show the fields-of-view of PHI/HRT (blue), SPICE (red), and the EUI/HRI (violet). (c) Sun observed with SDO/AIA with the same view as from DKIST with the CryoNIRSP FOV overlaid (green). (d) EUI/HRI image shows the coronal emission with high resolution.(e) SPICE raster map showing the transition region emission intensity peak of the Ne VIII spectral line obtained during dynamics observations SCI_DYN-MED_SC_SL04_5.0S_FF. (f) PHI/HRT magnetograms showing the line-of-sight magnetic field in a range between -100 and 100 G. (g) DKIST CryoNIRSP observation showing the coronal loops as observed using the Fe XIII line. (h) Corresponding Doppler velocity maps showing a speed of around ±4 km/s. (i) Corresponding FWHM map. The dark vertical band in panels (g), (h), and (i) represents a region where clouds impacted the observations.

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