Jupiter's average ultraviolet aurora

Abstract

Using the best UVS data from each of Junos completed perijoves, we have created average (and variance) maps for the northern and southern auroras of Jupiter. The individual maps for each perijove contain a variety of auroral forms and represent many different levels of activity at a variety of local times. In contrast, the average maps allow features that are nearly always present, but at a lower brightness level, to stand out. The variance maps, on the other hand, tend to highlight auroral structures which occur only rarely. In this presentation we examine what can be learned from these ensemble maps which provide a new look at Jupiter's always surprising auroras