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Two series of near-simultaneous images of the two auroral ovals observed between 11:24 and 12:10 UT on 23 October 2002. The left column shows observations of the northern hemisphere oval made by the FUV-SI13 instrument on the IMAGE satellite and the right column shows the series of near-simultaneous images of the southern hemisphere auroral oval made by the VIS-EC, instrument on the Polar satellite. respectively. Each image is shown in the geomagnetic latitude-magnetic local time (MLT) frame (using AACGM coordinate system) and white dot gives the location of the geographic pole (from Stubbs et al., 2005).
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