Dataset used in the manuscript. 2fluxLFM.txt: The first two columns are time from 09/07 00UT in hours and L along RBSP-B trajectory where the cutoff energy in vertical direction calculated using LFM model is 21 MeV. The third and fourth columns are time from 09/07 00UT in hours and L along RBSP-A trajectory where the cutoff energy in vertical direction calculated using LFM model is 21 MeV. Columns 5 and 6 are time from 09/07 00UT in hours and L where the 21 MeV proton flux measured by RBSP-B is 50% of the interplanetary flux. Columns 7 and 8 are time from 09/07 00UT in hours and L where the 21 MeV proton flux measured by RBSP-A is 50% of the interplanetary flux. 2fluxTS.txt: Columns 1 and 2 are time from 09/07 00UT in hours and L where the 21 MeV proton flux measured by RBSP-B is 50% of the interplanetary flux. Columns 3 and 4 are time from 09/07 00UT in hours and L where the 21 MeV proton flux measured by RBSP-A is 50% of the interplanetary flux. Columns 5 and 6 are time from 09/07 00UT in hours and L along RBSP-A trajectory where the cutoff energy in vertical direction calculated using LFM model is 21 MeV. Columns 7 and 8 are time from 09/07 00UT in hours and L along RBSP-B trajectory where the cutoff energy in vertical direction calculated using LFM model is 21 MeV. acut_0907.txt and acutoff_0908.txt are the cutoff energy along RBSP-A orbit calculated using TS07. The first column is time in seconds, the next three columns are the satellite location (radial distance in Re, latitude and longitude), and the last three columns are the cutoff energy in MeV in west, vertical and east direction. bcut_0907.txt and bcutoff_0908.txt are the cutoff energy along RBSP-B orbit calculated using TS07. The first column is time in seconds, the next three columns are the satellite location (radial distance in Re, latitude and longitude), and the last three columns are the cutoff energy in MeV in west, vertical and east direction. cutoffa_t700_fixed.dat and cutoffb_t700.dat are the cutoff energy along RBSP-A and RBSP-B orbits calculated using LFM. The first column is time in seconds, the next three columns are the satellite location (radial distance in Re, latitude and longitude), and the last three columns are the cutoff energy in MeV in west, vertical and east direction. tmax_test.txt is the cutoff energy using different tmax parameters at two time points. The first column is time in seconds from the start of the simulation. The next three column are the satellite location (radial distance in Re, latitude and longitude). The last three columns are the cutoff energy in MeV in west vertical and east directions. Lines corresponds to different tmax parameters. vap_081.txt and vap_082.txt are external Bz in nT measured by RBSP-B along an outbound orbit on 09/08 0719-1110UT and an inbound orbit on 09/08 1145-1545UT. ts05_081.txt and ts05_082.txt are external Bz in nT calculated using TS05 magnetic field model at RBSP-B location along an outbound orbit on 09/08 0719-1110UT and an inbound orbit on 09/08 1145-1545UT. ts07_081.txt and ts07_082.txt are external Bz in nT calculated using TS07 magnetic field model at RBSP-B location along an outbound orbit on 09/08 0719-1110UT and an inbound orbit on 09/08 1145-1545UT lfm_081.txt and lfm_082.txt are external Bz in nT calculated using LFM global MHD model at RBSP-B location along an outbound orbit on 09/08 0719-1110UT and an inbound orbit on 09/08 1145-1545UT b1430TS05 and EXTERNALTS07.txt are the magnetic field in nT calculated by TS05 and TS07 on 09/08 1430UT.