Fig. 5From: \(\textrm{O}^+\) density distribution in the nightside ionosphere reconstructed from ISS-IMAP/EUVI dataThe synthetic EUV images which simulate the EUVI-B measurements at about 21:08 UT, 21:11 UT, 21:15 UT, and 21:18 UT. In each panel, the orange contours indicate the altitude at the tangential point of the line of sight for each pixelBack to article page