Authors: Yeimy Rivera (CfA|Harvard & Smithsonian)

With the launches of Parker Solar Probe (Parker) and Solar Orbiter, the solar observatory system of satellites continues to grow outside of the Sun-Earth line, enabling more frequent and diverse spacecraft line-ups throughout the inner heliosphere. In particular, Parker continues to take measurements of a Sun’s outer atmosphere, closer than has previously done before, strengthening the connection that can be made between solar structures captured by images and spectra and their heliospheric counterpart. This talk will discuss the necessity for coordinated remote and in-situ observations to investigate the spatio-temporal evolution of the solar wind through spacecraft conjunction studies. In addition, I will discuss how heavy ion and elemental composition measurements can provide insight to the state of the corona and solar wind outflow.