Extended Data Fig. 3: Data processing flow chart.
The combined fields (BC) in the rover frame are determined by the mast rotation. CR2M and CM2R are the transformation matrices between the geographic coordinates of Mars and rover coordinate, in which ω is the yaw angle of rover. Bmars is the ambient field and Bbody is the field generated by the rover body. IA, TS and TE are the solar array current, sensor temperature and electronic temperature, respectively. C are the coefficients to be determined by the multiple linear regression and i corresponds to each magnetic field component. ∆I are the solar array currents differences between the 16 explorations and the along-track calibration. \({{\rm{B}}}_{body}^{{\prime} }\) are the magnetic fields generated by the rover body and calibrated by ∆I and C4.
