Re: Lunar by LOP - not difficult, but precision suffers
Subject: Re: Lunar by LOP - not difficult, but precision suffers
From: Noyce, Bill (william.noyce@XXX.XXX)
Date: Thu Jun 12 2003 - 15:34:33 EDT
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.
