Fig. 4
From: EUV signals associated with O+ ions observed from ISS-IMAP/EUVI in the nightside ionosphere
Simulated EUV intensity for EUVI-B for 21:00–21:30 UT on December 26, 2012. The red line indicates the time profile for 83.4 nm EUV and the green line indicates the time profile for 91.1 nm EUV. The blue line shows the mean count observed by EUVI-B which was shown in Fig. 3 for comparison. The scale for converting the expected count into the photon flux in Rayleighs is also shown on the righthand side of this figure