Image Details
Caption: Figure 1.
Diagram of the loci of STEREO-A, Earth, Parker Solar Probe, and Solar Orbiter at the beginning of 2024 April 1, provided by the Solar MACH application (https://solar-mach.streamlit.app/; J. Gieseler et al. 2023). All four vantage points lie on Parker-spiral traces connected to closely adjacent high-coronal footpoint longitudes.
© 2026. The Author(s). Published by the American Astronomical Society.