Fig. 9

Favorable observation timings for 7 different conditions. Pluses: looking at local time (LT) 14.5 h from east, crosses: looking at LT = 14.5 h from the meridian, asterisks: looking at LT = 14.5 h from west, open boxes: looking at LT = 12.5 h from the meridian, filled boxes: looking at LT = 9.5 h from east, open circles: LT = 9.5 h from the meridian, filled circles: looking at LT = 9.5 h from west. The viewing angle (emission angle) from east and west is set to 20° at the equator. Small dots indicate the nadir longitude of MMX spacecraft every 10 min. Data during the bus operation period are excluded from the plot