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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Ephemerides and Sight Reduction on an HP Prime Calculator
From: Charles Vaillancourt
Date: 2026 Feb 1, 06:55 -0800
From: Charles Vaillancourt
Date: 2026 Feb 1, 06:55 -0800
Based on Frank's feedback, I have added the ability to compute a fix. The method used depends on the number of observations: the intersection of 2 LOPs when only two sights were made, the symmedian center of the triangle formed by 3 LOPs, or the centroid of all the intersections of 4 or more LOPs. More detail here.
The computation logic starts on line 329 of this program.
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