STATISTIC /NOISE

        [DISPLAY\]STATISTIC [DataCube [FirstPlane [LastPlane]]
      [/EDGE Margin] /NOISE VarNoise

    Return the rms noise in the specified VarNoise SIC real scalar variable.
    The rms noise is also available in variable STAT_NOISE, and if the image
    is  the  CLEAN image, in CLEAN%NOISE as well for further convenience and
    use in scripts.