[daip] forwarded message from Hanno Spreeuw

[Eric Greisen]

We sometimes get nice messages too...

E
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From: Hanno Spreeuw <hspreeuw at science.uva.nl>
To: Eric Greisen <egreisen at nrao.edu>
Subject: Re: [daip] scimg or imagr question
Date: Fri, 02 Mar 2007 13:20:05 +0100

Hello Eric,

I just did 7 selfcal iterations on a VLA 1989 P-band map of the GC using 
SCIMG. This is a 7 hour observing run. I just let it run for a week.
I'm impressed by the performance of SCIMG. It does good selfcal without 
SDI clean or multiresolution clean if you set clean boxes with care.
The image looks good.
Saves me a lot of time. Hurray!
Hanno.

Eric Greisen wrote:
> Hanno Spreeuw writes:
>  > Thank you for your quick reply. This is P-band VLA-data of the GC in CnB
>  > configuration.
>  > I set MINPATCH very large (1024), perhaps that is too large?
>  > MAXPIXEL default value.
>  > Beam is not odd, it's a 6 hour run.
>  > 21 channels per IF to avoid bandwidth smearing.
>  > It is 31DEC04 with all available patches.
>  > I will come back to your questions concerning the residual image and the
>  > allocation of memory next week.
>  > Thanks,
>  > Hanno.
>  > PS: what is the imagr multi-scale bug?
>  > PPS: Is SCIMG going to be extended for SDI clean and multi-resolution clean?
>  > 
> 
> I was assuming that you had a modern aips - yes the MINPATCH may be
> too large for your AP size which is fixed when you compile AIPS in
> your version, but not in 31DEC07.  The multi-scale bug was in 31DEC07.
> 
> One could add the further options (they are in the class just not
> allowed by the interface).  Yours is perhaps the first inquiry.  The
> self-cal phase does statistics on things which might have to change
> for multi-scale.
> 
> ERic Greisen
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