From: teeks99stuff@yahoo.com   
      
   edkyle99@hotmail.com wrote in news:1111079751.762331.8400   
   @o13g2000cwo.googlegroups.com:   
      
   > Tom Kent wrote:   
   >>   
   >> Does anybody know why a super-synchronous transfer orbit?  Looking at   
   > the   
   >> diagrams, it didn't look like the most efficient way of getting to   
   > GEO in   
   >> the end.   
   >   
   > The supersynchronous transfer orbit approach actually   
   > decreases the delta-v requirements for putting a payload   
   > into GEO.  This is because orbit plane changes are more   
   > efficiently performed at the lower velocity of the   
   > supersynchronous apogee.   
      
   That makes sense.   
      
      
      
   > The 400-series Atlas V Centaur can only perform two-burns,   
   > so it cannot do insertion burns at transfer orbit apogee.   
   > (500-series Atlas V Centaurs do have a three-burn option.)   
      
   So in the three burn circumstance, any third burn would be a   
   cirrcularization burn?   If that was the case, then it would be doing the   
   part of the satellite in Henry's parell post.  In that case (without case   
   of doing the inclination transfer) you'd just want to go to a typical GTO,   
   because you WOULD burn the tanks dry?   
      
      
   >   
   >  - Ed Kyle   
   >   
   >   
      
   Tom Kent   
      
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