Magnetic field map with a coronal field model. Photospheric magnetic field, scaled to ±30 Mx cm⁻² (grayscale), and PFSS model coronal field (red is the negative and green is the positive polarity). We show field lines that intersect the source surface at latitudes 0°and ±7°. The blue triangle marks Solar Orbiter, and the pink square marks PSP magnetic footpoints at the source surface. The two dashed vertical lines mark the Carrington longitudes of the east solar limb as viewed from STEREO-A (STA) and the Earth.