Fig. 14From: Science operation plan of Phobos and Deimos from the MMX spacecraftObservation configuration of MSA in the Phobos-centric Solar Ecliptic coordinates. The Phobos-centric Solar Ecliptic coordinate system has the X-axis pointing from Phobos towards the sun, the Z-axis parallel to the ecliptic northern pole, and the Y-axis determined in the right-handed system. In both panels, \(B\) and \(E\) indicate the magnetic and electric fields of the SW, respectively. The magnetometer measures \(B\), while \(E\) is derived from \(E = - V \times B\), where \(V\) denotes the SW velocity nearly towards the − X directionBack to article page