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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lunar by LOP - not difficult, but precision suffers
From: Bill Noyce
Date: 2003 Jun 12, 15:34 -0400
From: Bill Noyce
Date: 2003 Jun 12, 15:34 -0400
Regarding "Lunar by LOP", Doug Royer says: > I hope to try this new (to me)proceedure over the next few days > and try to form my own opinion as to the diffaculty or ease of completeing > it. I think you'll find the procedure is relatively straightforward and familiar. But try it using a range of values for the moon's altitude, based on various estimates you might make for dip (perhaps using the temperature/pressure tables), and see how much your longitude moves as a result. Also consider how many different table entries you add together, that are all tabulated to 0.1 minutes -- each contributes a rounding error of up to 0.05 minutes, and they might all be in the same direction. Try reducing your sight a few times with that error added back in, once all positive and again all negative.
