Next message: Alexandre E Eremenko: "Re: Easy Lunars in 1790"
Peter wrote
> An inaccurate DR will lead to longer intercepts, an inherent enemy of
> accuracy. The remedy is to take the indicated Fix as an improved DR and repeat
> the sight reduction exercise.
>
> Incidentally, methods of sight reduction that use a presumed DR expressed in
> whole degrees suffer the same inherent defect. From reading this List, and
> other sources, such methods seem the most popular today; presumably because
> they remain the main methods taught. An example of the triumph of inertia over
> an informed mind.
I am at the point that I can whip out Hc and Zn in 3-4 minutes on my TI-30XA
(3 memories) with no paper or pencil needed from any AP I wish. I am glad
that I learned a tabular method first as it gave me a better understanding
of what was going on, and provides me with a backup to calculator methods.
I do agree I prefer a short intercept. Regarding long intercepts and
accuracy, the offset table can to help nudge a point on a an LOP a long
distance from the intercept to better approximate the COP.
Bill
