RE: Minimum spanning circles and Voronoi diagrams

[Tom Droege <tdroege2@earthlink.net>]

I am following this discussion with interest, if not complete 
understanding.  Sigh!  I was once a real math major and took vector 
analysis courses and the like.  But coordinate transformations have always 
boggled my mind.  That is why I went back to engineering and instead 
learned to worry about nice simple concepts (that absolutely have no one 
answer) like ground.

I have not yet noticed that anyone has plotted the data and looked at 
it.  That is the first thing I would do.  Since we get astrometry around 1 
second, I would plot some data on a 1 second x-y plot.  Then just look at 
it before I formulated rules to cut on it.

Tom Droege

At 03:31 PM 2/6/02 -0700, you wrote:

> > -----Original Message-----
> > From: Chris Albertson [mailto:chrisalbertson90278@yahoo.com]
> >
>
>You are saying just use the stddev number for the set?  Yeah, but how do you
>intelligently combine both the ra and dec error bars into one number?  This
>why I thought of the MEC, as using the radius to determine the amount of