Azimuthal dependence of the radial and azimuthal gradient of the Keplerian projected line of sight velocity, providing an understanding of how the effect of Keplerian shear in the radial and azimuthal directions vary with azimuth. This is evaluated for a radius, stellar mass, and inclination representative of our ARKS target HD 121617. The solid blue and dashed orange lines show the dependence of the curve on whether orbital or sky azimuths are considered; the former should typically be considered for data that have been de-projected to the orbital plane.