Re: Pipeline & DS20

[Tom Droege <tdroege@veriomail.com>]

Mike and all,

One of my uses for tass is just as you described.  I think one is not 
idiotic to work through mistakes in public.  Many can help.  Mostly you 
help yourself by expressing what you are doing.  I do not hold a public 
"mistake" against anyone.  I sure hope not, as I have plenty of mistakes on 
record.  I think that is the way the brain works.  I wish I had a nickel 
for every insight that I have had after giving up and while walking out to 
the parking lot.

OK, in any case, are you telling me that there are funny arcs on the 
images?  I do not recall seeing such artifacts?
Or is this some improvement brought out by your processing?

Tom Droege

At 08:33 PM 12/6/01 -0600, you wrote:
>Michael Sallman wrote:
>
> > Any other suggestions would be appreciated.
>
>It's a sad thing when you make suggestions to yourself. Have you ever
>noticed how you figure things out AFTER you hit the send button (and then
>look like an idiot).
>Anyway, I had the bright idea to actually look at some of the processed
>images, and I noticed some interesting artifacts, groups of 5 "dots" in
>arcs all across the images (more obvious on the I than V). So I then looked
>at the master_dark_* & master_flat_* images. You guessed it, the same arcs
>(again, much more pronounced in I vs. V).
>What went wrong?
>I think it's time to start over.
>
>Mike