From: hud@pobox.com   
      
   In article <35eh2tF4l146uU1@individual.net>,   
   Harald Kucharek   wrote:   
   >Steve J schrieb:   
   >> Why are the photos that return from titan not perfect, dont get me wrong its   
   >> a bloody amazing achievment to land a probe there, but surely thats the   
   >> difficult bit, if a picture is received from a quality camera which I assume   
   >> it is, surely the picture should be perfect, or is the data fragmented.   
   >>   
   >Ever tried to surf the internet when all you have is a few kilo*bits*   
   >per second and you've only one hour to download everything you want to know?   
      
   In a quick web search, I see one Huygens requirement for 2 channels of   
   8 kilobits/sec transmission rate to Cassini, but Cassini only   
   received the one channel. That's 1000 bytes/sec, or around just 3   
   highly-compressed 20-kbyte triplet images per minute (assuming no other   
   data transmitted), over the roughly 2-1/2 hours it transmitted.   
      
   Higher quality would have forced a much smaller quantity of images.   
      
   For MER rover-quality images of 10-15 times the size, Huygens could only   
   have sent maybe 20 or 30, instead of several hundred.   
      
   --   
   Hud Nordin  Silicon Valley   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)