Date: Thu, 16 Feb 2006 11:16:35 -0800
From: Constance Rockosi
Subject: Re: 2.5m obslog 20060214 (MJD 53781)
Thanks, David.
--connie
On Thu, Feb 16, 2006 at 10:50:18AM -0800, David Schlegel wrote:
> I don't see much evidence for changes in the spectro biases.
> There are slight changes in the overscan-corrected offsets,
> with the largest being 0.5 DN in r1 (although I just looked
> at the one frame mentioned below).
>
> -David
>
>
> On Feb 16, 2006, at 9:46 AM, Constance Rockosi wrote:
>
> >
> >Can you compare with a bias frame from last month from the same
> >camera?
> >
> >Thanks,
> >connie
> >
> >
> >On Wed, Feb 15, 2006 at 12:40:22PM -0700, Jurek Krzesinski wrote:
> >>
> >>
> >>
> >>   Hi Connie,
> >>
> >>             It's difficult to say, I think it's about 2-4 ADU from
> >>what
> >>I could tell by pointing the mouse over these regions. I can see
> >>that in stretched contrast saoimages and I don't think it would be
> >>visible on the 2.5m room imager displays.
> >>
> >>    Jurek
> >>
> >>
> >>On Wed, 15 Feb 2006, Constance Rockosi wrote:
> >>
> >>>
> >>>What is the amplitude if these?   Is it more pronounced than last
> >>>month's?
> >>>
> >>>Thanks,
> >>>Connie
> >>>
> >>>
> >>>>
> >>>>Frame:  37443 was visualy checked. I can see some "waves" on b2
> >>>>bias frame,
> >>>>but I don't think it's a problem.
> >>>>
> >>>
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> -----------------------------------------------------------------------
> David Schlegel                             DJSchlegel@lbl.gov
> Lawrence Berkeley National Lab
> 1 Cyclotron Road MS 50R-5032
> Berkeley, CA 94720-8160
> Phone: 510-495-2595  Fax: 510-486-6738
> http://www.astro.princeton.edu/~schlegel/
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