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    Re: The "golden rule of three" - what's that?
    From: Herman Dekker
    Date: 2018 Feb 14, 01:38 -0800

    Frank,

    Is the difference between Z.D. Zone Descriptor and z.d. for zenith distance, most of the time not indicated by Capitals for Zone Descriptor and lowercase for the zenith distance?

    HermanD

       
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