L/DEG&quot;, 3'

         'SURFACES = 2, Mars_MRO_HIRISE'

         'SURFACES = &quot;Mars MEGDR 64 PIXEL/DEG&quot;, Mars_MRO_HIRISE'

      An example of a `method' argument that could be constructed
      using one of the surface lists above is

         'DSK/UNPRIORITIZED/SURFACES = &quot;Mars MEGDR 64 PIXEL/DEG&quot;, 3'


      Aberration corrections using DSK data
      -------------------------------------

      For irregularly shaped target bodies, the distance between the
      observer and the ne