Stellar Activity and Parker Solar Probe: Coronal Mass Ejection on 2018 November 11 as seen by Parker Solar Probe

In Parker Solar Probe's (PSP) first orbit, in situ thermal plasma measurements were made between 35 and 55 solar radii from the Sun, an environment that has not been previously explored, with the SWEAP instrument suite. During the first orbit of PSP, the spacecraft flew through two coronal mass ejections (CMEs) one on October 31, 2018 as it entered an encounter and the second CME on November 11, 2018 as it exited encounter. This CME on November 11 was directed away from the Earth and was not visible from Earth based telescopes due to this configuration. However, Parker Solar Probe and the STEREO A spacecraft were able to make observations of this CME. This paper looks at the source, propagation and implications to space weather of the closest in situ measured Coronal Mass Ejection to the Sun. In addition, a discussion of the implications for stellar activity as well as the general radiation environment surrounding a star.