Program: GN-2011B-Q-100

This program intends to 1) measure seasonal changes in the upper atmosphere temperature of Uranus and 2) to re-discover the intensity modulation produced by the aurora as it rotates underneath the slit. With the temperature of the upper atmosphere decreasing by 200K between solstice and equinox, it is crucial to observe the temperature now as the planet rotates away from equinox. In addition, with the opportunity of detecting auroral signals, these observations will provide important information about the current systems linking the magnetosphere and ionosphere, but also provide a means to re-establish the rotational phase of the planet.