Re: Data Processing Switch

[Arne Henden <aah@nofs.navy.mil>]

Additions to Rob's comments
   - you could find new dust donuts appearing if you don't take
     flats every night, and need to go back to see when the
     donut occurred and reprocess starting at that point
My feeling is to save the raw images and discard the processed
images after you have done the star extraction.  That way you
save the same amount of data, but can recreate anything.
Arne

Creager, Robert S wrote:
> 
>>-----Original Message-----
>>From: Tom Droege [mailto:tdroege2@earthlink.net] 
>>Sent: June 02, 2003 7:29 AM
>>
>>The proposal is to save the dark subtracted, flat fielded, 
>>and position 
>>corrected files which come out of Michael R's pipeline 
>>instead.  These 
> 
> 
> I would say apply the location correction to the original images, and keep
> those.  I've offered to write a script that does this (take the pipeline
> output and update the original FITS headers).
> 
> 
>>data reduction.  There is no way to get a better flat or dark 
>>later in 
>>time.  I don't know what else we might want to do.
> 
> 
> Sure there is.  Better reject/selection criteria of images used for
> generating flats or darks...
> 
> Cheers,
> Rob
> 
> 
>