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    Cosine/haversine method
    From: Russell Sher
    Date: 2001 Feb 09, 05:14 EST

    Does anyone have much experience using the cosine/haversine method of sight
    reduction? As I understand it, this will calculate Hc, after which the
    azimuth has to found using tables or formula. I am interested in finding
    some suggestions on what is perhaps the easiest way to find Zn (or Z)...
    (ABC tables, formula etc...)
    regards
    Russell
    

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