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    Re: Cocked Hat & the most probable position
    From: Bob Goethe
    Date: 2017 Nov 24, 07:45 -0800

    Gary, Greg, thanks so much for your feedback on this.  It appears that once you have taken a couple of LOPs, deriving a third LOP doesn't really add much useful information.  So two point fixes it is for me!

    I see that Bowditch (2017), Section 1805, page 304 doesn't refer to a three point cocked hat at all...but rather recommends 5 or 6 LOPs to reduce random error in a fix.  But there is zero chance that I am going to work out 6 LOPs for a celestial fix while I am on a small boat. 

    First, I am going to become horribly seasick while looking at columns of small numbers in tables trying to get six LOPs.  And second, although I want to get a celestial fix, I also want to be on deck enjoying the sunrise.  Man does not live by spherical trigonometry alone.


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