Combined JADE and JEDI electron distributions and UV brightness during the main auroral oval crossing in the south from perijove 6. Panels (a) and (b) show the electron intensities as a function of time for upward electrons (going away from Jupiter) and downward electrons (going toward Jupiter), respectively. Panel (c) shows the total energy flux within the loss cone of upward and downward electrons, as well as the UV brightness mapped to 400 km altitude using the JRM09 magnetic field model. A 21-s shift of the brightness data lines up very well with the downward energy flux data. We estimate that the main oval crossing happens roughly between 06:52:45 and 06:54:00, which corresponds to the bright white arc in Fig. 2 (a). Panels (d) through (g) show the pitch angle distributions for the energy ranges indicated on the right. The jovigraphic latitude (Lat.), the M-shell (JRM09+CAN1981), the jovicentric distance (R), the measured magnetic field strength (B), and the spacecraft speed (v) are indicated at the minute markers at the bottom of the figure. The vertical lines in panels (d) through (g) and the circled numbers below panel (g) indicate time intervals for energy spectra and pitch angle distributions described further.
