ue if `spoint' is
               illuminated; otherwise it is false.

               [1,1] = size(lit); logical = class(lit)

</pre><h4><a name="Examples">Examples</a></h4><pre>

   Any numerical results shown for this example may differ between
   platforms as the results depend on the SPICE kernels used as input
   and the machine specific arithmetic implementation.

   Example(1):

      Find the phase, solar incidence, and emission angles at the
      sub-solar and sub-spacecraft points on Mars as seen 