The semi-major axis value of the external ellipse of the elliptical pixel
selector in amount of pixels in the processing window. The value
shall not be less than semimajor_axis_internal_ellipse of the current
processing window. The value shall be in the range of 1 to 65535,
inclusive and in multiples of 1 pixel.
The semi-major axis value of the external ellipse of the elliptical pixel selector in amount of pixels in the processing window. The value shall not be less than semimajor_axis_internal_ellipse of the current processing window. The value shall be in the range of 1 to 65535, inclusive and in multiples of 1 pixel.