References for the different methods angle parameters

turtleshell

Assalamou 3alaykoum,

I was looking through all the available methods in this file: https://1x.ax/islamic-network/libraries/prayer-times/~files/master/src/PrayerTimes/Method.php
and was wondering if it is possible to get links to references or sources for the angle parameters. I am currently developing a physical adhan clock and would like to understand better how these angles are chosen based on each region.

Jazzakoumou Allah.

meezaan

turtleshell 3laykum salaam.

These have been accumulated over the years, sometimes from official websites, sometimes from blogs and other libraries, and sometimes from local people providing the information.

But the initial set comes from https://praytimes.org/docs/.