Question about shuttle lauunch windows to Iss

From: Colin Knight (colin@colin-mb4.vispa.com)
Date: Thu Mar 28 2002 - 07:07:17 EST

  • Next message: Edward S Light: "Re: Question about shuttle lauunch windows to Iss"

    
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    Can someone help clarify the criteria for shuttle launches to the Iss please.
    
    As I understand it the shuttle launches within a few minutes of the time
    that the Iss passes within the orbital plane of the launch pad.
    
    Fair enough - now I've gotten hold of the map coordinates for the launch pads and just for interests sake put them into my tracking programme to work out the preferred time for next weeks launch (which everyone knows has been publicised for months.) 
    
    Now the Iss passes over the launch pad six times in any 24hr period so how come Nasa picks the 22:14 UTC window as the preferred launch time and not one of the other windows?  That particular window has the highest elevation of the lot so I'm wondering if this has something to do with it.
    
    Can anyone comment please? 
    
    Colin
    
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