A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Chris Allison
Date: 2020 Sep 16, 02:01 -0700
Thanks for all the feedback. It's heartening to know there's an active and involved community out there.
@ Frank Reed, David C, Greg Rudzinski
This reflects my novice status. I've only used NP303. I was aware there are other sight reduction methods; I was unaware they used different inputs/outputs. I'll change the title to 'SightReduction - NP303' to highlight the constraint. I may add other forms if/when I get hold of other tables.
@ Dave Walden
Yes, I believe the azimuth us toward the body's GP. If you forward your inputs (the green fields) I'll double-check.
@ Frank Reed
Total download size is in the region of 11MB. The app is implemented as a PWA (https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps); this allows network independence, installation to the home screen, and self-installing updates. I'm not sure there's any way to confirm complete download other than to try the app offline.
If there's any interest, I'm happy to open-source the code.