ion for the effects of light time 
   and stellar aberration, but in this case the corrections are 
   computed for radiation traveling *from* the observer to the target. 
   We will refer to this situation as the &quot;transmission&quot; case.

   The &quot;transmission&quot; light time correction yields the target's 
   location as it will be when photons emitted from the observer's 
   location at `et' arrive at the target.  The transmission stellar 
   aberration correction is the inverse of the traditi