The data set contains electron flux measurements from the Van Allen Probes A and B satellites, from the REPT, MagEIS and HOPE instruments for the period 2014-10-18 to 2014-10-28, a set of BAS-RBM simulations covering the same time period, and plasma density dependent chorus diffusion coefficients used to drive the BAS-RBM. The output of a coupled-density model is also included. When coupled with the density model, the density dependent chorus diffusion coefficients improve the BAS-RBM reproduction of ultra-relativistic electron acceleration. Funding: This material is based upon work supported by the Air Force Office of Scientific Research under award number FA9550-19-1-7039. Richard Horne and Sarah Glauert were also supported by the Natural Environment Research Council (NERC) grant NE/V00249X/1 (Sat-Risk) and National and Public Good activity grant NE/R016445/1. Giulio Del Zanna acknowledges support from STFC (UK) via the consolidated grant to the astrophysics group at DAMTP, University of Cambridge (ST/T000481/1). Jay Albert acknowledges support from NASA Grant No. 80NSSC20K1270.

The data set contains ephemera for the Van Allen Probes A satellite (VAP-A) and the Polar Operational Environmental Satellites (POES) m01 and n19 for the period 2013-03-17 to 2013-03-18. Chorus wave intensities calculated from data from the VAP-A EMFISIS instrument and trapped and precipitating electron fluxes calculated from the POES MEPED instruments are included in order to demonstrate the existence of conditions producing strong diffusion of electrons. Electron fluxes and phase space densities from simulations of strong diffusion performed using the BAS-RBM 2D are also included. This material is based upon work supported by the Air Force Office of Scientific Research under award number FA9550-19-1-7039. Richard Horne and Sarah Glauert were also supported by the Natural Environment Research Council (NERC) grant NE/V00249X/1 (Sat-Risk) and National and Public Good activity grant NE/R016445/1. Giulio Del Zanna acknowledges support from STFC (UK) via the consolidated grant to the astrophysics group at DAMTP, University of Cambridge (ST/T000481/1). Jay Albert acknowledges support from NASA Grant No. 80NSSC20K1270.