Discovery landing at EAFB

From: Matson, Robert (ROBERT.D.MATSON@saic.com)
Date: Tue Oct 24 2000 - 10:13:32 PDT

  • Next message: Ted Molczan: "RE: Discovery landing at EAFB"

    Hi All,
    
    I'm trying to estimate when my coworkers and I should be able
    to hear the double sonic boom from Discovery this afternoon,
    assuming the 1:59pm PDT landing at Edwards AFB.  We'll be in
    Torrance (about 33.84 north, 118.31 west).  As near as I can
    make out from the map at www.spaceflightnow.com, the closest
    approach of the ground track to our location will be about
    28 +/- 2 miles.  If I assume an altitude of 60,000 feet at
    that time (a total guess), then the slant range is about 30
    miles.  So the shock wave would take roughly 2 1/2 minutes
    to get to us.  In that amount of time, the Shuttle will have
    covered more than half the remaining distance to Edwards,
    with perhaps two minutes left to go before landing.  So
    1:57 pm seems like a good guess.
    
    Does anyone have an estimate of the time that the ground
    track first crosses the CA coast, and what the altitude of
    Discovery is at that time?  Thanks!  --Rob
    
    
    
    
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