21.3.21      KEPLER_THETA

Maximum angle (in degree) from the disk projected major axis beyond which the spectra are not considered in the averaging process.

This angle is needed because the projected rotation velocity is degenerate to zero along the minor axis, which results in a lower effective angular resolution in this direction. This effect depends on the disk inclination: a larger angle can be used for less inclined disks.

The default is 60 degree. The Azimut coverage can be visualized using command SHOW KEPLER_VELO.