Authors: A. Santa Fe Dueñas (University of New Hampshire), N. Lugaz (University of New Hampshire), N. Al-Haddad (University of New Hampshire), B. Zhuang (University of New Hampshire), R. W. Ebert (SwRI), M. I. Desai (SwRI), L. K. Jian (NASA Goddard Space Flight Center)

We investigate the deflection in energetic storm particle (ESP) driven by coronal mass ejections (CMEs) during solar cycles (SCs) 23 and 24. We use observations from NASA’s ACE and STEREO missions of helium (He), oxygen (O), and iron (Fe) intensities from $\sim$0.13 to 3 MeV/nucleon. We examine the angular distribution of ESP intensities and the correlation of ESP intensities with the near-Sun CME speed and the average transit CME speed for eastern and western events.