RE: STS landing ops

From: Dale Ireland (direland@drdale.com)
Date: Tue Feb 20 2001 - 10:49:51 PST

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    Thanks
    I really miss seeing them come in over Seattle as they did during Mir
    mission reentries.
    I talked to a shuttle orbit "designer" at JPL just after the Mir missions
    ended. He said their primary concern was the crew sleep cycles which were on
    Moscow time for Mir missions. They did some night, descending pass, landings
    then. I guess it all depends on which factors carry the most weight. I can
    see how night landings would present more concerns but they did them in the
    past so you wonder how they set the priorities.
    Dale
    
    -----Original Message-----
    From: BGJAKU@aol.com [mailto:BGJAKU@aol.com]
    Sent: Tuesday, February 20, 2001 10:40 AM
    To: ROBERT.D.MATSON@saic.com; SeeSat-L@blackadder.lmsal.com
    Subject: Re: STS landing ops
    
    
    I spoke with NASA flight operations about this late last year.  This was
    their response...If something were to happen during re-entry, they must rely
    only on their infrared cameras.  During a day landing, they can use both the
    infrared and the visual tracking systems.  Also, in the case of a
    catastrophic event, recovery efforts could be hampered by the dark night
    sky.
    
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