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    Re: Read the vernier, get the noon latitude
    From: David Pike
    Date: 2018 Feb 6, 14:01 -0800
                  89° 60.0'
               -  74° 06.3'
    ZD          15°  53.7' 

    89° 60' instead of 90°  00'.  Thats a clever way of getting zenith distance Gary.  I must have missed that trick.  I supose it's the celnav version of borrowing and paying back, but if I've ever seen it before, I must have forgotten it,  perhaps because we never really looked for Mer Pass.  It was AP3270 all the time after training.  DaveP

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