Martian centre of mass - Centre of figure offset.

A Fourier analysis of Martian radar topographic data is carried out to determine the magnitude and direction of the center-of-mass/center-of-figure offset of Mars. A value of about 1 km is obtained for the figure offset with respect to the center of mass in the general direction of Tharsis. It is noted that figure offsets of comparable magnitudes exist in the earth and the moon.