Panel a) Electron intensity profiles detected by Wind/3DP/SSTs (27–310 keV) on 2002 October 20. The black lines indicate the original fluxes, and the colored lines show fluxes after correction for scatter-out electrons. Panel b) Electron intensity profiles detected by Wind/3DP/EESAs (1.3–19 keV). Panel c) Onset times of electron fluxes as a function of inverse velocities. The red line indicates a linear fit to electrons above  ~25 keV, and the blue one shows a fit below 13 keV.