SOLVE FOCUS

        CLIC\SOLVE FOCUS [/PLOT] [/COMPRESS timex] [/PRINT]
        [/OUTPUT filename [NEW]] [/TOTAL] [/FIX par1 [value] ...]

    *** THIS HELP HAS NOT BEEN UPDATED FOR THE NGRX ***

    Find focus corrections from a FOCUS scan using a parabolic fit.  All fo-
    cus scans in the current index are processed.   All  continuum  subbands
    and  both  side bands are averaged.  SET AVERAGE METHOD SCALAR is recom-
    mended.  The fits may be displayed with option /PLOT.

    The option /COMPRESS may be used to average data in a given time  inter-
    val before processing, to improve the signal-to-noise ratio.  Default is
    4 seconds.

    The presence of option /PRINT produces a procedure  file  (INTER_OBS:fo-
    cus.obs),  to  be  used  in OBS for introducing the fitted focus offset.
    With option /OUTPUT, results of the fit, together with elevation and az-
    imuth, are written in an output ASCII file, for further examination.

    ****** ATF CORNER ******

    With  option /TOTAL, SOLVE FOCUS uses the total power to solve for axial
    focus errors. In that case, option /FIX may be used to fix  one  parame-
    ter. Possible parameters are:

        FOCUS: the axial focus error (mm)
        PEAK: the peak amplitude, in total power units
        WIDTH: the HPW of focus curve  (mm)
        ZERO: the off-source zero level, in total power units

    With  /TOTAL, /COMPRESS does the ON-OFF combination if in beam switching
    mode. In that case ZERO is preferrably fixed to zero (e.g.  SOLVE  FOCUS
    /TOTAL /COMPRESS /PLOT /FIX ZERO 0).