Re: Minimum spanning circles and Voronoi diagrams

[Chris Albertson <chrisalbertson90278@yahoo.com>]

Tom Droege wrote:
> 
> I cannot imagine that one can do as well "deblending" as one does with a
> clean image.  So I would want to mark such measurements as "not first quality".

I'm not 100% sure but I think the mark of "not first quality" is
a larger error bar.  The neat thing about using a database is
that you can specify a selection criteria when you take the
data back out.  We just need to keep processing history and error
bars for every data point.  We did this for thr Mark III data
mostly.  I see Mk IV as just "much more of the same".

> 
> OK the least I would do is to keep separate lists.  Or mark the stars as
> "clean", "deblended", etc..  We have lots of stars.  I lean toward a list
> of very clean stars for a start.  Well, a combined list with the proper
> label is just fine.  I think each measurement has to include several
> quality markers.  Some that I can think of:  Seeing, Pixel Problems, Cosmic
> Ray problems, ...  I am not sure we can do this with one byte.  Probably a
> half dozen bytes will be needed to give various quality levels for each
> item like clouds, seeing, nearby track, etc..
> 
> <SNIP>
--
   Chris Albertson             
   Redondo Beach, California
   home:   310-376-1029   chrisalbertson90278@yahoo.com
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