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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Consistent "away" intercepts. Why?
From: David Pike
Date: 2019 May 4, 15:07 -0700
From: David Pike
Date: 2019 May 4, 15:07 -0700
To add to my earlier post, I think what Bill was saying is that if everything was perfect, your position lines should cross at a point. If the three azimuths had no angle greater than 180 between them, the three unknown fixed (and therefore equal) errors in ho (or the tables) would all be radii of the inscribed circle of the ensuing cocked hat (by definition of the inscribed circle). If there was an angle greater than 180 between the azimuths, the three equal errors would now be radii of the excircle centred at the true position. See diagram. If the true position was already be known to a high degree of accuracy, this fact might be used to analyse the fixed error. DaveP
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