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wcslabStarted by:duvall, 04/05/2006 06:38PM
I am having trouble getting wcslab to
put a grid around an image. It works
fine when
stdimage=imt512 but for larger frame
sizes, the grid info gets spewed all
over the window.
I am using ds9 and linux iraf. I set
wcslab.device=imdwhiite.
Thanks.
Tom ...

3102

By: fitz

04/05/2006 06:38PM

weighting scheme in the daophot psf taskStarted by:juge, 04/13/2017 09:41AM
Hi guys,

I use the psf task in daophot package to
build semi-emperical PSFs
(Gaussians+residuals) for my images. One
thing that puzzles me is that when the
gain parameter is arbitrarily adjusted,
output of the psf task does not change
at all. If the...

1398

By: valdes

04/25/2017 10:04PM

Weird residuals in DAOPHOT PSFStarted by:jthorstensen, 12/05/2008 10:48PM
Hello Everyone,

We have a strange problem with the PSF
fitting in DAOPHOT. Has anyone else
run into this?

We are selecting stars manually and
looking at their radial profiles --
they're fine. But when we hit f to fit
the residuals, the RMS is much ...

3170

By: jthorstensen

12/05/2008 10:48PM

weird thing in IRAF's WCSStarted by:Guest, 10/13/2005 09:55PM
[b:aa520eeeb1]From:
[/b:aa520eeeb1]"Dmitry Bizyaev"
<dmbiz@noao.edu
([email]dmbiz@noao.edu[/email])>
[b:aa520eeeb1]Date: [/b:aa520eeeb1]July
28, 2005 4:19:00 PM MST
[b:aa520eeeb1]To:
[/b:aa520eeeb1]iraf@noao.edu
([email]iraf@noao.edu[/email])
[b:a...

3040

By: Guest

10/13/2005 09:55PM

Weird XDIMSUM problemStarted by:vall, 05/13/2009 03:10PM
I have a very weird problem with
XDIMSUM. It seems to work, but sometimes
one of the sky-subtracted imagesis
screwed up. What happens is that the
left ~200 columns in the image are
shifted last to the right of the image.
The rest of the images is shifte...

2965

By: valdes

05/13/2009 03:10PM

what are the general tasks like sextr...Started by:haha, 09/30/2014 12:51PM
I mean tasks in iraf.

859

By: haha

10/04/2014 01:34PM

What does FITPARAMS do when only 1 fi...Started by:aoxsic, 04/21/2007 01:03AM
Does anyone know this? If I have only
one filter and prepare the observations
file and configuration file the right
way, and then run fitparam to get the
zero point, then what would the output
be?

It normally gives a catalog of stars and
then the magn...

2547

By: rjvo

04/21/2007 01:03AM

when does ccxymatch fail?Started by:aoxsic, 09/02/2008 08:03PM
Dear IRAF staff,

I have some images with WCS in the
headers. I also have a list of RA DEC
coordinates of stars that could be used
for photometry. I want to run some IRAF
task, I guess ccxymatch, in order to
transform the RA DEC to pixel
coordinates. Th...

1853

By: valdes

09/02/2008 08:03PM

Where are LTV and WAXMAP header cards...Started by:wentzel, 01/12/2006 01:11AM
Hello, IRAFers!

I'm rewriting some old code for GONG at
NSO to speed up its operation, and I'm
trying to figure out what IRAF routines
are writing some particular header cards
in an image. The header cards being
written are:
[color=red:762a35754e] WC...

5020

By: wentzel

01/12/2006 01:11AM

Which application should I use?Started by:mnicholls, 02/11/2014 01:57PM
I have a number of spectra which all
contain the same two Oxygen-III lines.
These lines should NOT show changes in
the value of the center wavelength and
the flux (i.e they should remain
constant across all spectra), however
some peaks have for some unk...

4111

By: fitz

02/11/2014 06:52PM

Which comp file wih which object?Started by:cosmologist, 07/13/2011 11:01PM
I am doing the step of the wavelength
calibration of the data reduction.
In the manual (A User's Guide to
Reducing Slit Spectra with IRAF) it is
mentioned that the first step is the
extract a comparison spectrum from the
object.
I am not sure which com...

2733

By: massey

07/13/2011 11:01PM

which step lets iraf know the exposur...Started by:haha, 08/24/2014 12:09PM
For specral reduction,there is a
parameter 'exptime' in 'calibrate'. The
exptime is the exposure time of your
star or the standard star?

How does iraf know the exposure time of
your source and the standard star?

1402

By: haha

08/26/2014 02:48PM

Which X11 resource is resposible for ...Started by:cong, 08/25/2009 10:05AM
Hi,

I'd like to know which X11 resource of
X11IRAF's XGTerm is responsible for the
default scroll bar behavior. I want to
make it so that the scrollbar is
displayed when XGTerm is launched. Any
idea?

Thanks.

2812

By: cong

08/25/2009 10:05AM

WHT LIRIS Data Reduction PacakgeStarted by:kirankumar, 09/15/2015 03:07PM
Hi,

Did anyone use the LIRIS data reduction
package?

Regards,
Kiran

1160

By: fitz

09/17/2015 07:10PM

Why do I always get DARK CORES when u...Started by:nusjjsun, 04/24/2014 05:26AM
Hi everyone, I'm new to IRAF and now
trying to perform PSF-fitting to a
couple of white dwarfs that are blended
with DAOPHOT package. I followed a few
online tutorials to set up the
parameters and used the ALLSTAR command
at last. But a problem has exis...

1510

By: valdes

05/12/2014 09:11PM

wiener : task not foundStarted by:nelly, 06/03/2009 03:25PM
Hi,

When I type 'wiener' which is a
deconvolution filter, I get: task
'wiener' not found'.
Although I can access the 'help wiener'
.

Any help?
Thanks
Nell

1748

By: nelly

06/03/2009 03:25PM

WREGISTER with CD[1-2] keywords??Started by:aoxsic, 12/18/2008 02:13PM
Hello,

I have 2 images (I have more but this is
for illustrating purposes) with the
following WCS in the headers.

Image 1

im1.fits[2048,2048][real]: GOODS-S
ORIGIN = 'NOAO-IRAF FITS Image Kernel
July 2003' / FITS file originator
DATE = '2008-12-1...

2367

By: valdes

12/18/2008 02:13PM

writing an IRAF taskStarted by:saumya, 03/04/2014 04:17PM
Hi guys !!! Wassuup !!!

I need to write an IRAF task. I am
clueless. Please help me. I am
explaining the problem below-

Let us have a fits image where all the
counts in pixel boxes are zero. Now, I
need to assign values (real or integer)
to differ...

867

By: saumya

03/04/2014 04:17PM

writing an IRAF taskStarted by:saumya, 03/04/2014 04:15PM
Hi guys !!! Wassuup !!!

I need to write an IRAF task. I am
clueless. Please help me. I am
explaining the problem below-

Let us have a fits image where all the
counts in pixel boxes are zero. Now, I
need to assign values (real or integer)
to differ...

675

By: saumya

03/04/2014 04:15PM

Writing to file from a procedure scriptStarted by:Gaba_p, 03/12/2009 04:48PM
I need a way to automatically (i.e. from
a script) create a file and write the
following text into it:

char : text1 text2 text3
char2 : text4 text5 text6

something along those lines (it's the
'imsets' file from 'mknobsfile'). Can
this be done with a s...

1990

By: fitz

03/12/2009 04:48PM

wspectext and list filesStarted by:GalisBG, 10/15/2015 03:54PM
Hi there,

I'm trying to export as text files a lot
of reduced 1d spectra distributed in
different folders using wspectext with
list files for input and output
containing the full path of the fits and
txt files

It works well with reading this list ...

1775

By: GalisBG

10/22/2015 10:09AM

wspectext ERROR: Cannot open pixel fileStarted by:David Stops, 10/26/2009 04:34PM
I'm trying to extract a 1d spectra from
a fits file using

wspectext NAMEex.fits[*,2] NAME.txt

On NOAO PC-IRAF Revision 2.12.2-EXPORT
on Debian Linux, I get the error below

ERROR: Cannot open pixel file
(obj16ex.fits[*,2])

When I try the same thin...

3172

By: David Stops

10/26/2009 04:34PM

wspectext to linear wavelengthsStarted by:fitz, 07/09/2016 03:09AM
.[color=red][Moderator's Note: Forwarded
from submitted story on behalf of
user.][/color]

I have many (1400) spectra with
logarithmic binning in wavelength, how
do I make a text file
with wavelengths in Angstroms rather
than log(Angstroms)?

thank...

821

By: fitz

07/09/2016 03:28AM

wtextimage format=???Started by:elainahyde, 11/24/2009 04:00PM
Greetings Irafians,
I am trying to use iraf to convert a
2D .fits image (a picture) into an ascii
file that is of the format: x,y,value.
I hope to then plot this file in gnuplot
and draw functions on top of it. I know
I can use wtextimage. The pro...

1968

By: fitz

11/24/2009 04:00PM

X11 window problemStarted by:kkwitter, 08/23/2006 03:52PM
I have a new Intel Mac Pro (but had the
same issue with my old G4): X11 can only
ever open one terminal window. Typing
"xterm," or "Command-N" or selecting
"Terminal" from the Applications menubar
does nothing. If the single X11 window
is closed for any...

2734

By: kkwitter

08/23/2006 03:52PM

X11Iraf v 1.32 and CygwinStarted by:afarrow, 02/17/2009 06:55PM
Running up against a wall here
almost....
first off I have the working copy of
xgterm.cygwin available so I can still
use iraf. so I'm not S.O.L.

My boss asked me to get x11iraf(mainly
ximtool) to run under cygwin, and as I
try again and again, it's no...

6974

By: afarrow

02/17/2009 06:55PM

X11IRAF version 2.0 release?Started by:edsmith, 12/29/2007 12:51AM
Hi,

The NOAO Newsletter, Dec. 2007, on page
21, announces the
release of X11IRAF 2.0.

I can't find it.

Please point me in the right direction.

Thanks,
Ed

p.s. Of course, I'm drooling over the
24-bit XIMTOOL the newsletter says
is now sup...

2604

By: fitz

12/29/2007 12:51AM

x11iraf website offline...Started by:cong, 11/28/2008 01:02PM
It seems the x11iraf website is taken
down... the URL
http://iraf.noao.edu/iraf/web/projects/x11iraf/index.html
gives a 404

So where else can I find the x11iraf
documentation?

Thanks

1567

By: fitz

11/28/2008 01:02PM

xc: Command not found.Started by:fsidoli, 05/29/2008 11:06AM
Hi there,

I'm trying to run a program in/outside
of IRAF that use the portable IRAF
compile/link utility, 'xc'. I can see
that I have the xc.e installed on my
system under
'/iraf/iraf/unix/bin.redhat/xc.e' and
that it seems to be listed under the
softo...

4556

By: fsidoli

05/29/2008 11:06AM

xdimsumStarted by:skanbur, 06/06/2007 03:53PM
Hi, Im tryin gto use xdimsum with IRAF
2.11.3 and 2.12 on a PC
running Debian Linux. Ive used the
Debain packages and also the linux
binaries on the iraf web site.
I installed xdimsum
and for a sample of 15 sky flats, i try
and use the xslm command thro...

15423

By: fitz

06/06/2007 03:53PM

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