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    Re: Long-range airplane navigation
    From: Renee Mattie
    Date: 2004 Nov 26, 12:49 -0500

    Mr. Eremenko:
    
    You have really stimulated discussion on this list!
    There has been plenty for me to read here lately, and I
    rarely feel I have anything additional to add.  I was
    interested in your comment:
    > Today, while exploring a new search engine from Google, I
    > found several indications that CelNav with real sextants and
    > real horizon (!) was used in at least two space missions:
    > Skylab and Soyuz-17. Unfortunately I could not locate
    > complete articles but only their resumes.
    
    
    And I thought you would be interested to in how Celestial Navigation
    (referred to as Optical Navigation at NASA JPL) has been used on the
    Mars missions.  Even methods for lunars (Phobos and Deimos)
    are being developed
    http://mars.jpl.nasa.gov/mro/mission/sc_instru_optical.html
    (and many others you can find on Google)
    
    This is not news to the old-timers here.  One recent thread is at
    http://www.i-DEADLINK-com/lists/navigation/0403/0042.html
    There is more in some other threads during the same month.
    
    Thanks for all you have added to the list lately.
    
    Renee Mattie
    
    
    

       
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