UV_CIRCLE

        [ADVANCED\]UV_CIRCLE [x0 y0 Rota Incli]
      [/SAMPLING QSTEP [Unit [QMIN QMAX]]] [/ZERO [Flux]]

    Compute  a UV table containing the radial distribution of the azimutal aver-
    age of the visibilities after deprojection for inclination  and  orientation
    (Incli, Rota, in Degrees) around a specified center (x0,y0  in Radians). All
    arguments  default  to  0.   ROTA is here the position angle of axis of (as-
    sumed) rotational invariance of the object. Thus, when  using  results  from
    UV_FIT  one  should  use ROTA = PA-90, where PA is the Position Angle of the
    Major axis.

    The resulting UV table have visibilities only with V values equal to  0,  so
    that the U values contain the radial distance in the UV plane.  This is con-
    venient to display the azimutal average of the visibilities as a function of
    UV distance, but cannot be used for further imaging.

    See  UV_RADIAL  if  you want to image the circular average of the brightness
    distribution.