Screenshot from energy-mass channel-selection script. The user draws a box and identifies the ion species for any significant signal. Selected data are shown with a red box for H⁺, a blue box for He²⁺, and a green box for He⁺. Two red lines delineate the expected position of the H⁺ signal; a blue line shows the border between He²⁺ and He⁺. The colour-scale shows the logarithm of the number of counts. The shown signal is summed over all directions.