 Moon is the target body

               [1,c1] = size(body); char = class(body)

                  or

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

      rectan   the array(s) containing the rectangular coordinates of the
               position or set of positions.

               [3,n] = size(rectan); double = class(rectan)

       re      the value describing equatorial radius of the body
               of interest.

               [1,1] = size(re); double = class(re)

       f       the value