ransmission, depending on the
               selected 'abcorr')

               [1,n] = size(et); double = class(et)

      abcorr   the aberration correction to apply when computing the
               observer-target state and the target body orientation.

               [1,c3] = size(abcorr); char = class(abcorr)

                  or

               [1,1] = size(abcorr); cell = class(abcorr)

               For practical purposes, 'CN' (converged Newtonian)
               represents the best correction c