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Fig. 7 | Earth, Planets and Space

Fig. 7

From: Proton auroras during the transitional stage of substorm onset

Fig. 7

THEMIS ASI observations and FESO proton auroral observations. The top two panels show the FSMI ASI keogram and ATHA ASI keogram constructed along the FESO meridian, respectively. The arc band is shown in orange dotted lines in the 2nd panel. The 3rd panel shows the ATHA ASI counts sampled and averaged over the arc band. The 4th panel shows the FESO proton auroral intensities versus time and latitude. The bottom panel shows the total proton auroral intensities integrated over full FESO latitudes. Two vertical dotted line throughout the plot denote T0 and T1, the TSSO interval

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