Date: Mon, 15 Oct 2012 16:06:49 -0400 (EDT)
From: Jun-Hui Zhao 
To: Alice Argon 
Cc: Chunhua Qi 
Subject: Re: Frequency Shift in MIR and/or MIRIAD

Hi Alice,
    We are still working on the MIR/IDL path.
If she is hurry to reduce SMA data in CASA, the
Miriad-CASA path should have been debugged and
adapted by the NRAO/CASA staff. You may refer
her to "http://www.cfa.harvard.edu/sma/miriad/path2casa/"
which will be posted to public soon.
    Jun-Hui

On Mon, 15 Oct 2012, Alice Argon wrote:

> I don't know, she didn't say anything.  I do know that she's working on
> it right now, i.e., as fast as I provide what she wants.
>
>
>
> On Mon, 15 Oct 2012, Jun-Hui Zhao wrote:
>
> > Will she be here for a visit soon?
> >      Jun-Hui
> >
> > On Mon, 15 Oct 2012, Alice Argon wrote:
> >
> > > Jun-Hui and Charlie,
> > >
> > > As I mentioned at the Friday meeting, Anaelle Maury pointed out that there
> > > is a frequency difference between data calibrated here (in MIR, MIRIAD, or
> > > both) and data not calibrated here (presumably in CASA).  We are now
> > > troubleshooting the problem to get some insight into where the problem
> > > arises.  I will send you information as I get it.
> > >
> > > First Clue:
> > >
> > > She says,
> > >  "As regards the spectral shift: it is inhomogeneous accross the full
> > >   bandwidth and seems to depend on frequency.  I attach to this email a
> > >   figure showing a spectrum from the published dataset (in black) compared
> > >   to the same spectrum from the calibrated data you sent me."
> > >
> > > Therefore, please see attached figure.
> > >
> > >  Alice
> > >
> > >
> >