Re: Data reduction methodology for V-I colors

[Stupendous Man <richmond@stupendous.cis.rit.edu>]

  Michael Koppelman wrote:

> This got me thinking and I'm sure there are tech notes and such I could 
> find about it but nonetheless -- have you guys considered calibrating 
> the night rather than the frame? i.e. take the whole dataset, read in 
> all the stars from the entire night, throw out the ones with high 
> errors, match up the Landolt/Henden or other standards and get 
> transforms for the whole night?

  Yes.  Read Tech Note 98:

     http://stupendous.rit.edu/tass/technotes/tn0098.html

                                            Michael Richmond