Fig. 1From: The Plasma Wave Experiment (PWE) on board the Arase (ERG) satelliteOverview of the Arase satellite. a External view and b the view from the ZSGA direction, where “SGA” stands for “Spinning Satellite Geometry Axis” coordinates, which represent the geometrical positions of the components on board the satellite. The dashed arrows indicate the direction of spacecraft spin motionBack to article page