RE: Soliciting criticism

["Creager, Robert S" <CreagRS@LOUISVILLE.STORTEK.COM>]

SPS2X is at:

http://www.ifa.hawaii.edu/~heasley/sps/web/index.html

As for multiple prizes, you're too kind.  I actually switched from SPS to
Sextractor by changing two lines in one script (thanks to sextractor's nice,
variable output format).  I can reduce a directory completely and
automatically, but for a novice, the setup would probably take weeks :-)
I'll work on that next, after I get what are termed 'good' results.

Is DAOPHOT 1.3-2 available outside of IRAF?  I'm looking at starlink, but it
only has 1.2  Looks like to reduce the 2064 sized images, we'll either need
1.3-2, or to muck around in the code.  BTW: SPS2X has a 2048 max image size
by default, so you'll have to play in 1 header file to change that...

Thanks,
Rob


> -----Original Message-----
> From: Chris Albertson [mailto:chrisalbertson90278@yahoo.com]
> Sent: Tuesday, November 06, 2001 12:57 PM
> To: Creager, Robert S; tass@listserv.wwa.com
> Subject: RE: Soliciting criticism
> 
> I thought of that too.  But at least one PSF fitting software system
> (daophot) allows for a spacially varent PSF. (That is a PSF that is
> a function of X,Y)  This is this same as breaking the image down in
> to as many reasions as there are stars.  Muchh better then 9 or 16.
> SPS was written, I think with the goal of being easy to use.
> Once you start allowing very complex PSFs to be specified you lose
> that goal but if we are to break past doing 5% photometry we are just
> going to have to beat every little detail into the ground and give up
> on "easy".  Still I think you should apply for Tom's software prize
> twice as both SPS and sextractor do what Tom asked for:Hands off
> reduction of multiple CDs.
> 
> Do you have a URL for SPS?  I'd like to look at the code and see
> how easy it would be to add a function like GetPSF(x,y) to be used
> in place of the constant PSF.  This could give doaphot some real
> competition.
> 
> > 
> > Now, are there any packages which use non-constant two dimensional
> > PSF
> > models?  
> 
> See above. daophot runs stand alone and as part of at least a couple
> larger systems IRAF and Midas and likey others too.  Midas being the
> Euroean equivalent of IRAF.  If you think sextractor has a large
> parameter pace you ain't seen nothing yet...
> 
> See detail documentation at
> http://iraf.noao.edu/scripts/irafref?daophot
> 
> and a user manual at
> http://iraf.noao.edu/iraf/docs/daorefman.ps.Z 
> 
> Again this stuff runs outside of IRAF if you want.
> but IRAF/daphone only takes about an hour to setup unless it is your
> first time.
> 
>