Authors: M. E. Cuesta (Princeton University), T. S. Horbury (Imperial College London), J. S. Rankin (Princeton University), D. Turner (Applied Physics Lab), S. Raptis (Applied Physics Lab), B. L. Shrestha (Princeton University), L. Y. Khoo (Princeton University), H. A. Farooki (Princeton University), M. M. Shen (Princeton University), E. J. Zirnstein (University of Alabama in Huntsville), M. Finlayson (Imperial College London), S. Kasapis (Princeton University), N. Walia (Princeton University), R. N. Jain (Princeton University), S. Pak (Princeton University), G. Livadiotis (Princeton University), J. R. Szalay (Princeton University), D. J. McComas (Princeton University), C. M. S. Cohen (California Institute of Technology), N. A. Schwadron (University of New Hampshire), E. R. Christian (NASA Goddard Space Flight Center), M. Gkioulidou (Applied Physics Lab), J. G. Mitchell (NASA Goddard Space Flight Center), Z. Xu (California Institute of Technology), G. D. Muro (California Institute of Technology), N. Subashchandar (University of Alabama in Huntsville), L. Zhao (University of Alabama in Huntsville), W. H. Matthaeus (University of Delaware), J. Giacalone (University of Arizona), G. P. Zank (University of Alabama in Huntsville)

We apply an automated routine to detect and catalog interplanetary shocks observed by the Interstellar Mapping and Acceleration Probe (IMAP). Using this catalog, we derive the upstream diffusion coefficient along each shock’s normal direction using second-order quasi-linear theory and unified nonlinear transport theory to get the parallel and perpendicular components of the diffusion coefficient tensor, respectively. We show that the magnetic compression of fast forward shocks is correlated with the upstream diffusion coefficient, suggesting that magnetic compression indirectly regulates particle transport by enhancing upstream wave activity via reflected particle populations rather than acting solely as a confining magnetic barrier. We host the interplanetary shock catalog on the IMAP mission’s publicly available webpage and plan to regularly update it for use by the heliophysics community.