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    Re: Lunar Distance Hs and Prism Level.
    From: Chuck Taylor
    Date: 2007 Sep 19, 09:42 -0700

    Frank, you wrote:
    
    ====
    To translate, for those new to the topic, using Hs means a raw measured 
    altitude and Hc means a computed altitude (H for hauteur -French for 
    altitude, s for sextant, c for computed). 
    ====
    
    Then what does 'a' stand for, the French word for 'intercept'?
    
    Chuck Taylor
     48 N
    122 W
    
    
    
    
    
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