NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lunars: Jupiter's BIG.
From: Fred Hebard
Date: 2003 Dec 29, 17:43 -0500
From: Fred Hebard
Date: 2003 Dec 29, 17:43 -0500
If the error of the chronometer were increasing exponentially, I would rather have the instantaneous rate than the average rate, at least once the acceleration in the error was out of the lag phase. Fred On Dec 29, 2003, at 5:07 PM, Frank Reed wrote: > Fred wrote: > "If the rater were highly unlinear, and the functional dependence on > time unknown, the average rate would not be useful. I believe George > was trying to point this out." > > Yes, maybe he was. As I said though, that's not necessarily relevant > to navigational practice. You can get a useful rate on a chronometer > with any pair of longitude verifications and usually they will be > separated by weeks. You're not getting the instantaneous rate, but it > is a "practical" and useful rate, and the fact that it is an average > rate may well make it more useful in practice instead of less useful. > > Frank E. Reed > [X] Mystic, Connecticut > [ ] Chicago, Illinois
