Re: Shuttle Landing Op

From: Steven Rogers (srogers1@austin.rr.com)
Date: Mon Dec 17 2001 - 11:48:18 EST

  • Next message: Bill_T_Bard@raytheon.com: "Re: Shuttle Landing Op"

    On Monday, December 17, 2001, at 09:26 AM, Bill_T_Bard@raytheon.com 
    wrote:
    
    > "Will we be able to see a "contrail" as it comes in over us?"
    >
    > The only time you would see a contrail would be if they fire the 
    > thrusters.
    > Previously, when it's passed by I haven't seen any kind of contrail. 
    > Coming
    > in at mid day will be hard to see. The best time is early or late in the
    > day when the sky is somewhat darker but the shuttle still in light. I 
    > think
    > it crosses the coast at about 100,000 feet, Mach 10, I think about 10
    > minutes before landing.
    
    I've seen a twilight pass, and the plasma trail isn't visible but the 
    shuttle is
    quite bright - brighter than a satellite. The *best* time is when the 
    shuttle
    comes in at night - the plasma trail is amazing.  But in Florida, they 
    may
    have slowed enough so that none of these phenomena are visible, i.e.  too
    slow for a plasma trail, too low to be illuminated like a satellite, to 
    high to
    see like an airplane.
    
    Steve
    
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