 the 
      rotation angle is negated.  
 
   Precision of light time corrections 
   =================================== 
 
      Corrections using one iteration of the light time solution 
      ---------------------------------------------------------- 
 
      When the requested aberration correction is &quot;LT&quot;, &quot;LT+S&quot;, 
      &quot;XLT&quot;, or &quot;XLT+S&quot;, only one iteration is performed in the 
      algorithm used to compute 'lt'. 
 
      The relative error in this computati