“…Without comparing to coincident magnetic field data, we cannot conclusively determine whether these signatures are Alfvénically accelerated versus another broadband acceleration mechanism. Yet, given the success of the Alfvén wave back‐tracing and that the distributions are not consistent with static downward inverted‐V acceleration, such distributions fit within the body of increasing evidence for Alfvénic acceleration sustaining tail emissions in the Juno era (Bonfond, Saur, et al, 2017; Damiano et al, 2019; Gershman et al, 2019; Saur et al, 2018; Sulaiman et al, 2020; Szalay, Bagenal, et al, 2020; Szalay et al, 2018). We mention that during the PJ12N transit, Poynting fluxes associated with the turbulent cascade of low‐frequency transverse fluctuations in the magnetic field indicative of Alfvénic fluctuations were estimated to be ~3,000 mW/m 2 (Gershman et al, 2019).…”