AUTHOR=Schonfeld S. J. , Pesnell W. D. , Verniero J. L. , Rivera Y. J. , Halford A. J. , Vines S. K. , Spitzer S. A. TITLE=Expanding the deep space network to support the heliophysics system observatory JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=9 YEAR=2023 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2022.1051527 DOI=10.3389/fspas.2022.1051527 ISSN=2296-987X