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    Re: Celestial Navigation on the surface of Mars
    From: John D. Howard
    Date: 2018 Nov 29, 21:31 -0800

    Frank,

    I do not think there is a navigation challenge on Mars.  I think it is a surveying challenge.  The navigation part ended when InSight landed within 5 k of its target.  Now, the challenge is to fix the position more fine and to me that is surveying, not navigation.  The lander is not going anywhere.

    John H.   41N 100W

       
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