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Heavy sources tar.gzStarted by:nev, 02/19/2011 05:46AM
On iraf.net homepage there is a link to
IRAF sources and a note that it's 29MB
big...

Unfortunately the iraf-src.tar.gz on ftp
server is bigger that iraf-all.tar.gz
and more like 300MB big (wrongly
containing binaries for all
architectures).

Can this ...

1342

By: nev

02/19/2011 05:46AM

Unable to run cl scriptsStarted by:nialld, 04/10/2017 04:30PM
Hi, I've hit a bit of a problem with
IRAF scripts. I previously wrote a bunch
of .cl scripts (i.e. lists of IRAF
commands). These used to run by typing

[code]cl < test.cl[/code]

However now cl will start, list the
basic packages and then just hang...

1343

By: nialld

04/13/2017 01:37PM

mscred.ccdproc in V2.16 gives ERROR b...Started by:smart, 02/26/2016 10:09AM
I have "upgraded" from IRAF V2.14 to
V2.16 (ecl to vocl) and my code that
worked on the old version does not work
anymore.
I have the old version on another
machine and I checked it is something
that has changed in this upgrade.

The data is ima...

1346

By: smart

02/29/2016 07:52PM

Problem with IRAF interactive tasks o...Started by:hedgy123, 03/09/2011 09:36PM
Hi,

I've never had this problem with iraf
before. I am using iraf version
V2.15.1a on Linux Centos 64-bit OS.
Whenever I try to run a command that
needs to open another window (e.g.,
after typing "l" in imexamine, or in
"implot some_image.fits"...

1346

By: fitz

03/09/2011 09:36PM

IRAF HelpStarted by:Guest, 11/23/2009 05:32AM
To Whom It May Concern:

I am trying to use ecidentify to
identify spectral features in an
extracted emission line FITS image.
After identifying 13 emission lines
over three orders, I am still unable to
use the 'f' key option to show
the resid...

1347

By: Guest

11/23/2009 05:32AM

Rebin to simple wcs using output from...Started by:dmw8f, 11/29/2016 11:00PM
We have used ccmap to create a database
file (.db) containing 3rd order
polynomial coefficients to link CCD
pixel coordinates to sky RA DEC
coordinates using GAIA stars. We now
want to use this database file to rebin
the image into a linear image with s...

1349

By: valdes

12/06/2016 11:33PM

Fwd: Multi slit dataStarted by:valdes, 01/13/2010 11:28PM
[b:6f62212893]From: [/b:6f62212893]Ana
Maria Teodorescu <teoana@gmail.com
([email]teoana@gmail.com[/email])>
[b:6f62212893]Date:
[/b:6f62212893]January 11, 2010 1:13:24
PM MST
[b:6f62212893]To:
[/b:6f62212893]fvaldes@noao.edu
([email]fvaldes@noao....

1349

By: valdes

01/13/2010 11:28PM

magpar unitsStarted by:michgradstudent, 08/03/2016 07:07PM
Hello!

I'm using ELLIPSE package to create
radial profiles of different galaxies
from HST ACS images.
I'm slightly confused by the units for
"mag0" and "refer" in the task MAGPAR.

The magpar help page notes that the
magnitude it will use for ELLI...

1357

By: fitz

08/04/2016 03:08AM

write permissionsStarted by:Guest, 04/29/2010 07:21PM
Hi, I'm trying to pipe iraf output
into files but get "cannot write to"
errors;
e.g.,

ecl> imhead *.fits l- > list
ERROR: cannot open `list' for writing

Is there some flag I need to set in
login.cl? Or??

Thanks,
=======================...

1360

By: fitz

04/29/2010 07:21PM

Spectroscopic WCS referenceStarted by:paco, 06/07/2011 06:10PM
For a simple onedspec format fits file,
does the wavelength for pixel 1 refer to
the left (short wavelength) edge of the
pixel? or the center? I think the left
edge (as for an image WCS), but would
like to be sure.

And if I convert that fits file to ...

1363

By: valdes

06/07/2011 06:10PM

Downloads for Older Versions of IRAFStarted by:justinc, 07/11/2021 02:32PM
Are there any archive versions of IRAF
available for download anywhere? I can't
find them on NOAO.
I need 2.12.2a.

1365

By: fitz

07/12/2021 06:32PM

Faike spectra IrafStarted by:Sparkles, 09/30/2010 04:30PM
Hi,

I'm trying to model a black body and see
what kind of spectra I would get out for
a given surface temp. Is there any way
of doing this using Iraf. i.e give it a
temp/peak wavelength and it models the
kind of spectra one would expect??

Many thanks ...

1367

By: Sparkles

09/30/2010 04:30PM

cl script is not running on unix term...Started by:sapna, 06/06/2017 02:50PM
Dear all,

Does anyone know how to run *.cl scripts
on the normal unix terminal??

For eg. I am running a script from the
normal unix terminal as:

$ cl < /home/sap/Script/clean_photo.cl

and I am getting an error like:

astutil>astutil>astuti...

1369

By: olebole

08/20/2017 08:41AM

Help with WCSStarted by:Diego Farías, 04/28/2015 04:47PM
Hi everyone, I'm new in this forum and I
would like you to give me some advices
about a problem I've had with WCS:

I have a set of FORS2 polarimetric
images, and for some reason the WCS is
messed up in the slits; for this I'm
using a reference image ...

1370

By: Diego Farías

12/16/2015 10:27PM

FITS problem with 2.15.1a and OSX 10...Started by:npirzkal, 06/02/2011 06:15PM
I am having recurring problems running
long IRAF/Pyraf python scripts that
access many FITS files.
At some point, some IRAF tasks fails to
be able to open (existing and well
formatted) FITS files even though they
are indeed where they are.
Running the t...

1370

By: fitz

06/02/2011 06:15PM

array and CL problemStarted by:rjvo, 10/28/2010 12:57PM
I start IRAF in xgterm
window:[code:1:df90896515]
ecl
[/code:1:df90896515]
now[code:1:df90896515]
=x
[/code:1:df90896515]
I put 2 [Enter]
now:[code:1:df90896515]
=x[1]
2
[/code:1:df90896515]
now:[code:1:df90896515]
lpar cl
[/code:1:df90896515]
a...

1371

By: fitz

10/28/2010 12:57PM

convolving spectraStarted by:rohit, 04/27/2010 10:58PM
Can spectra of a non-rotator be
broadened in IRAF for a specific
velocity? Basically I am calculating
rotational velocities for the stars
using the technique as stated in
Bailer-Jones et al. 2004, A&A, 419,
703. I would like to know if IRAF can do
...

1371

By: fitz

04/27/2010 10:58PM

mkiraf without entering terminal typeStarted by:epud, 11/02/2010 06:11PM
Hi.

I am making a csh install script where I
issue the command:

mkiraf

I would however prefer it if it just
picked xgterm instead of prompting the
user to type it in. Is there a way I can
call mkiraf so that no user input is
required?

Thanks,

Paul

1372

By: fitz

11/02/2010 06:11PM

Overwriting issueStarted by:Jean-Gab, 05/03/2016 05:35PM
Hi,

I'm using IRAF 2.16 on OS X Yosemite,
and I've got an issue when I try to
overwrite on fits already existing.
(ERROR: Cannot open file
(/tmp///.IMT504)). I've checked on the
forum and haven't found any solution yet
(which was working).

My prob...

1387

By: Jean-Gab

05/09/2016 07:42AM

scombineStarted by:Polly, 02/12/2010 11:29AM
I'm sorry to ask again, but this time
I'm really confused.

I want to do an accurate sky subtraction
and used fxcor and specshift to cross
correlate my 14 sky spectra and then
shift them. Now I wan't to combine them
to an average sky spectrum. For this ...

1387

By: valdes

02/12/2010 11:29AM

memory problemStarted by:IvanRamirez, 11/18/2009 03:02PM
hi,

i'm having this problem that every time
i start to work on fits files with iraf,
even if it is only copying them with
imcopy, my memory gets used and not
returned. example: at some point i have
~1.1gb free but after imcopy-ing
something like 20 fit...

1387

By: fitz

11/18/2009 03:02PM

INDEF after invertfit taskStarted by:Amanpreet, 07/12/2010 09:26PM
Hi

I am learning aperture
photometry.Everythign goes fine until it
reaches invertfit.It does not give any
kind,but generates a file with no
magnitude calculation for my object.
It looks like:
Columns:
# 1 object id
# 2 B
# ...

1390

By: Amanpreet

07/12/2010 09:26PM

non-stellar photometryStarted by:spacermase, 04/13/2010 04:01PM
Hello all,

So, I'm working on trying to get
photometric measurements of Saturn's
moons during opposition. I've just now
finished reducing the images, and can
actually proceed to doing the data
analysis. I now have a few questions.

1. What's better ...

1391

By: valdes

04/13/2010 04:01PM

imcopyStarted by:sscibell, 09/03/2015 04:50PM
Hello,

I am trying to use imcopy to copy a
portion of a file but when I do that,
for example:

imcopy big.fits[1:1201, 400:799]
small.fits

I get the following error:

ERROR: too many positional arguments for
'imcopy'

Any idea why I am getti...

1392

By: fitz

09/03/2015 04:52PM

imcombine has stopped workingStarted by:grayro, 01/29/2019 04:09PM
Hi,

I have encountered a mysterious problem
in a cl hosting script which I have been
running as part of a pipeline for about
2 years. Suddenly, a few weeks ago,
imcombine stopped working and is
producing an output file of 0 length.
The offending li...

1399

By: grayro

02/26/2019 03:15PM

Display error with kpnoslit? Or some...Started by:stevenson, 10/27/2009 09:34PM
I am trying to reduce data from the
Goldcam spectrograph on the Kitt Peak
2.1m telescope. I recently installed
V2.14.1 for Mac (Intel) on my iMac (2.8
GHz Intel Core 2 Duo).

When I run doslit (noao.imred.kpnoslit)
it looks fine, until I start to edi...

1400

By: stevenson

10/27/2009 09:34PM

New entry for OBSDB.DATStarted by:Guest, 01/27/2010 01:41PM
Hi,

I would like to add the following entry
in the "obsdb.dat" file. It is for the
SOAR telescope located in Chile.

observatory = "soar"
name = "Southern Astrophysical Research
Telescope"
longitude = 70:44:01.4
latitude = -30:14:16.8
altitude = 2738...

1401

By: fitz

01/27/2010 01:41PM

ds9 not refreshing frames in photStarted by:sebastian, 05/08/2011 09:32PM
Hi, I'm using Iraf v2.14 and Saoimage
Ds9 6.2 and when doing interactive
photometry with phot, the frames are not
refreshing when changing to the next
image.
It is always showing the first image, if
loaded previously, from a list of
images. If I'm using...

1411

By: sebastian

05/08/2011 09:32PM

using colbiasStarted by:fitz, 11/30/2009 04:05PM
hi,
i'm an IRAF beginner and currently going
through the exercises tutorial. my
problem is : why do we fit a chebyshev
function of order 1in the "colbias"
section? why not a legendre or spline?
is it because we are using an averge?
please help....

1414

By: fitz

11/30/2009 04:05PM

inverted imagesStarted by:Guest, 06/02/2009 02:08PM
Dear IRAF expert,

I would like to process CCD images taken
with a plate scanning
machine. These are negatives (i.e.
black stars on white background)
with a limited dynamic range. I do have
FITS files and they display
fine with IRAF. With imexam I ca...

1414

By: fitz

06/02/2009 02:08PM

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