Auroral brightening

These images show the aurora as seen by an ultraviolet imager onboard the NASA's IMAGE spacecraft.

On each of the three images taken at 10:44 11:32 and 11:41 CEST on 26 September 2005, localised auroral brightenings are clearly visible. These auroral brightenings are related to the three substorms onset captured in space by Cluster (CL), Double Star TC2 but also GOES10 (G10), Los Alamos National Laboratory 084 spacecraft (LANL084) and the American Defense Meteorological Satellite Program F15. The projection into the ionosphere of the position of these spacecraft has been overplotted in white in the topmost image.