Authors: Riddhi Bandyopadhyay (Princeton University), J. Grant Mitchell (NASA Goddard Space Flight Center), Manel E. Cuesta (Princeton University), David J. McComas (Princeton University), David J. Ruffolo (Mahidol University)

Previous works have shown that switchbacks are systematically associated with correlated reversals of the electron strahl. However, energetic ions, measured by EPI-Lo, generally do not preferentially change their directionality from that of the background magnetic field to that of the switchbacks. Here we show that energetic electrons, near the energy range of ~ 1MeV, do exhibit signature of reversals at switchbacks. This results put a constraint on the lower limit of switchback length scales.