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Re: positions and other pipeline matters



I think that the scripts I wrote to match objects to the Tycho 2 catalog
would be very easily adapted to matching with the UCAC catalog.  (If I had a
copy).  I volunteer to do what Tom has suggested below.  "Produce a
collected.big file with UCAC positions".

John Phillips
john.d.phillips@tass-survey.org

----- Original Message -----
From: "Tom Droege" <tdroege2@earthlink.net>
To: "Stupendous Man" <richmond@a188-l009.rit.edu>; <tass@listserv.wwa.com>
Sent: Friday, June 28, 2002 10:31 AM
Subject: Re: positions and other pipeline matters


> As L'il Abner might say "Given a collected.big file and a UCAC catalog,
any
> fool could write a program that matched them up and produced UCAC position
> collected.big file, I could write it."
>
> Seems to me that there is nothing to stop this from being done right
> now.  I think Arne will provide a catalog to someone that wants to do
> it.  Why not do this as a post processing step to Michael's pipeline?
Does
> someone want to take this on?
>
> I read Michael below as saying the pipeline is not going to change
> much.  He might change the format - but I think this is not a very big
> problem.  One just adds columns of stuff.
>
> The data base, as I see it, is a separate problem.  Given a big list of
> measurements that are of high quality and which contain interesting data,
> someone will solve the data base problem.  It is not such a large problem
> by today's standards that it will not be able to live in some standard
place.
>
> It is my mind to get on with it.  Keep taking measurements and reducing
> them with the present pipeline.  We are now talking about small
> improvements.  A few percent here, a few percent there.  Desirable, but
not
> essential to the project.
>
> I plan to do just that.  Work on collecting data and processing it through
> the pipeline.  Get an engineering paper out late this year after I have
> completed +7 N and then go on to other areas.  Get a big scan going so
that
> I get each area of the sky every few days.  Get some areas with short
> period variable scans.
>
> Tom Droege
>
>
> At 09:40 AM 6/28/02 -0400, you wrote:
>
> >   Arne suggests that we match up detected stars to UCAC stars, then
> >use the UCAC positions for all subsequent analysis.
> >
> > >   Again, UCAC is the way to go here; keep its coordinates and don't
> > >   try to improve on them.
> >
> >   Tom agrees:
> >
> > > Yep, I am patiently waiting for someone to fix up Michael's pipeline
to
> > use
> > > UCAC.  Then I will process all the data again and collect_stars will
> > not be
> > > needed.
>
>
>