Fitting results for . The solid black, dashed red, and dot-dashed green lines in panel a are the results for V = − 300, − 500, and − 700 km s⁻¹, respectively. The dot-dashed green, dashed red, and solid black lines in panel b represent the results for n = 3, 6, and 9 cm⁻³, respectively. The IMF conditions are B_X = −1.6776 nT, B_Y = 2.4871 nT, and B_Z = 0 nT, which represent the normal condition of the Parker spiral IMF at Mars.