Small Electron Events Observed by Parker Solar Probe/ISʘIS During Encounter 2

The current understanding of the characteristics of energetic electron events in the inner heliosphere is inferred almost entirely from observations made by spacecraft located at 1 AU. Previous observations within 1 AU of the Sun, by the Helios spacecraft at ∼0.3-1 AU, indicate the presence of electron events that are not detected at 1 AU or may have merged during transport from the Sun. Parker Solar Probe's proximity to the Sun at perihelion provides an opportunity to make the closest measurements yet of energetic electron events. We present an overview of measurements of energetic electrons between ∼17 keV and ∼1 MeV made by the Parker Solar Probe Integrated Science Investigation of the Sun (ISʘIS) during Encounter 2 (2019 March 31-April 10 with perihelion of ~0.17 AU), including several small energetic electron events. We examine these events in the context of the electromagnetic and solar wind environment measured by the FIELDS and SWEAP instruments on Parker Solar Probe. We find most of these electron enhancements to be associated with type III radio emissions that reach the local plasma frequency and one enhancement that appears to be primarily associated with abrupt changes in the local magnetic field. Together, these associations suggest that these events are indeed the first measurements of energetic electron events within 0.2 AU.