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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Celestial Nav "sight reductions" with python?
From: Wolfgang Hasper
Date: 2022 Feb 28, 08:49 +0100
On Fr, Feb 25 2022 at 12:15:00 -0800, Ken Harris <NoReply_Harris@fer3.com> wrote:
From: Wolfgang Hasper
Date: 2022 Feb 28, 08:49 +0100
ken,
you may wish to have a look also at pynovas.
br
wolfgang
On Fr, Feb 25 2022 at 12:15:00 -0800, Ken Harris <NoReply_Harris@fer3.com> wrote:
I bought a used Davis 25 sextant a few days ago, and I'm interested to do "sight reductions" w/ python.
George Kaplan from USNO writes about using "least squares" to calculate sight reductions : https://gkaplan.us/content/nav_algorithms.html. I'd like to implement this in python. Have you seen python code that does sight reductions ? I found a scipy.linalg.lstsq(a, b) for doing least squares. I found almanac data in python : pymeeus, pyephem & skyfield.
I also found a paper from just a few months ago about using Kalman filters : https://doi.org/10.1017/S0373463321000758 ...
