From: henry@spsystems.net   
      
   In article <87eksz9svf.fsf@ibp.de>, Markus Redeker   wrote:   
   >> That said, ISS isn't in a good orbit to use as a stepping stone,   
   >   
   >Which orbit would you prefer?   
      
   The best orbit for an orbital assembly base is equatorial, although that   
   requires an equatorial launch site (not just near the equator, mind you,   
   but very nearly on it -- even Kourou, at 5.2degN, is not really suitable).   
   The big win is launch windows once per orbit instead of once or twice a   
   day, and there are some lesser issues like lower radiation dose too.   
      
   If it's a US project and you're not prepared to build a new launch base   
   (or operate from floating platforms like Sea Launch), then a 28.5deg orbit   
   like that originally planned for the space station is best.  It doesn't   
   have the unique advantages of an equatorial orbit, but it does maximize   
   payload capacity for launches from the Cape.   
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