Second example case of counter-streaming ions, observed outside the diamagnetic cavity on 2016 January 31. The energy scale for all panels has been corrected using the lower energy cut-off method. (a) Energy-time spectrogram of ions, with the total magnetic field strength overlaid as a magenta line. (b) The sector polar plot of ion counts before directional correction. (c) The sector polar plot after the SPIS-based directional correction(Bergman et al. 2020a,b). The format of the polar plots (b,c) is the same as Fig. 1: the polar axis is the instrument sector, the radial axis represents binned energy ranges (2.5–5 eV, 5–10 eV, and 10–20 eV), and the color scale shows normalized counts. Data from sector 0 have been removed, and sector 13 is inactive. The blue and red arrows point toward the average directions to the comet and the Sun, respectively.