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reading fits errorsStarted by:dbrenner, 12/16/2008 06:31PM
ds 9 opens a multiple extension fits
file but iraf can't read it. !!?

ERROR: FXF: EOF encountered while
reading FITS file

code : magnify ( input =
filename//"["//str(J)//"]", ...

help
thanks

2829

By: fitz

12/16/2008 06:31PM

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 ...

3173

By: jthorstensen

12/05/2008 10:48PM

A problem with COSMICRAYStarted by:lisk, 09/24/2008 12:40PM
Dear iraf users,

When I run cosmicray to remove cosmic
rays for my *.imh files, there is a
error:

[quote:5d64c0244d]ERROR: PLIO: reference
out of bounds on mask[/quote:5d64c0244d]

here are the parameters of COSMICRAY

[quote:5d64c0244d] in...

3372

By: lisk

09/24/2008 12:40PM

atomic lines in stellar atmospheres?Started by:, 08/29/2008 12:01PM
Hello,

I would like to calculate equivalent
widths and relative abundances in
stellar atmospheres. I searched through
the help page above but only find
something for gaseous nebula that is the
"nebular" package. Are there any atomic
line lists that I c...

2566

By:

08/29/2008 12:01PM

CTIO Y4K CCD reduction questionStarted by:Santiago, 08/20/2008 02:20AM
Hello, I'm Santiago Roland and im going
to the Yale 1.0m telescope in CTIO in a
couple of days.. to do some TNO
Photometry.... I read the Y4K cam
reduction intructions by Massey and i
was wondering if all this reduction can
be done in the binned 2x2 mod...

3111

By: Santiago

08/20/2008 02:20AM

Graphic representation of data (list ...Started by:chemist, 07/20/2008 07:10PM
I work in surface-chemistry and use IRAF
for the photometric measurements. I have
written a small script, that extracts
the intensity from the electron
difflaction pictures (bright spot, like
a star!) with help of xgphot and txdump
(FLUX value). I woul...

2378

By: chemist

07/20/2008 07:10PM

CCMAP output as an input for GEOTRAN?Started by:sinopesky, 07/15/2008 01:33PM
Is it possible to use CCMAP's output
(database) as a database input for
GEOTRAN?

2864

By: sinopesky

07/15/2008 01:33PM

help with DOPCORStarted by:starburst84, 07/10/2008 01:18PM
I have muti-dimensional data file
created for all objects in a single
mask. How can i correct different
apertures for different redshifts?

3041

By: fitz

07/10/2008 01:18PM

changes in ccdproc pram file will not...Started by:David Emory, 07/02/2008 10:38PM
When I edit the ccdproc pram file and
save with ":q" and then look at the file
(using lpar ccdproc or epar ccdproc) to
make sure that the changes were saved, I
get back the original file. Changes are
not being saved. Any suggestions?

2975

By: valdes

07/02/2008 10:38PM

rspectext on FUSE dataStarted by:, 07/01/2008 05:18AM
Hello,

I converted FUSE data to a table of type
.dat. It consists of 4 columns:
wavelength, flux, error and quality.

1. My problem is to convert it to IRAF
spectra. First I typed

on> rspectext star1.dat spec1
lo> splot spec1.fits

I get a line...

3098

By: valdes

07/01/2008 05:18AM

trouble installing x11irafStarted by:al374, 04/27/2008 07:31PM
Hello, I'm running on OpenSUSE v10.3

I unloaded the x11iraf-new_gcc.tgz in my
local direction

% tar -xvf x11iraf-new_gcc.tgz

and I am trying to utilize the install
command, because xmkmf isn't a known
command for me.

I'm having trouble with th...

2949

By: al374

04/27/2008 07:31PM

Units of measurementStarted by:asino89, 04/05/2008 03:06PM
I'm having first experiences with IRAF.
I've been introduced by an astronomer
who tough me how to use splot to grab
info about spectra of quasars.
I've been calculating the average value
at 5100A, but i have some problems with
the units of measurement. ...

2738

By: asino89

04/05/2008 03:06PM

FlatcombineStarted by:camjh, 03/28/2008 05:33PM
Hi,
I have a problem with the Iraf
FLATCOMBINE task, when trying to create
a combined flat file of UVES flat files
(ff lamp 1) I get errors. I have tried
running it with different lists and by
typing in the single files. Everytime I
get an error:

List ...

7749

By: darsh

06/29/2023 05:00PM

Extraction trickStarted by:figueira, 03/23/2008 08:48AM
Hello all!

I want to create a blaze function for my
spectroscopic data. To do so I would
like to use the apertures and tracing
that I did on an object image's order
and extract the same pixels from a
flatfield. Can I do this using doslit or
any similar...

2716

By: figueira

03/23/2008 08:48AM

Cannot see WCS information from DS9?Started by:hymong, 02/26/2008 05:45AM
Dear Sir/Madam,

I am going to make my observation images
with WCS information. I have download
reference images with WCS from The STScI
Digitized Sky Survey (SDSS) website.
However when I open it with IRAF command
[b:22eba5a1ce]disp[/b:22eba5a1ce] or
d...

4028

By: fitz

02/26/2008 05:45AM

redshift with fxcorStarted by:Tino, 02/09/2008 03:25AM
Hi,
I'm trying to use fxcor to get
redshifts. I tried a very simple test at
the beginning: took my template ,
redshifted it by 0.9 (using dopcor) and
then ran fxcor of this redshifted object
against the template. The answer should
be a clear peak at 0....

2836

By: Tino

02/09/2008 03:25AM

imcombine problemStarted by:sarahs, 01/11/2008 06:50PM
hello all~

i am trying to use imcombine for several
images. i keep getting the following
error message:

ecl> imcombine @test1.txt sub1.fits
combine=median

PANIC in
`/iraf/iraf/bin.redhat/x_images.e':
segmentation violation

test1.txt is a list ...

3448

By: valdes

01/11/2008 06:50PM

programming nuancesStarted by:Sean, 09/19/2007 02:22AM
Hello,
I have been writing a procedure script
to automatically reduce some optical
data, and I have a few questions about
the iraf programming language which
don't seem to be addressed in "An
Introductory Guide to IRAF Scripts".
First of all, I have ...

4401

By: Sean

09/19/2007 02:22AM

hselectStarted by:Guest, 08/10/2007 01:47AM
Hi There,

Please, I have had a bit problem in
working out with the hselect task iraf.
I am working on a macbook machine, IRAF
2.13-beta2.

----------------------------------
cl> hselect radial.fits ra yes
ERROR: parameter 'missing' not found
called ...

4777

By: abrito

08/10/2007 01:47AM

xgterm problemsStarted by:JCab, 08/08/2007 03:32PM
I am now having a devil of a time with a
problem with xgterm OUTSIDE of IRAF.
Just to be clear, I am running the
current version of MacOS (10.4.10) using
Apple's current version of X11 and using
the Scisoft PPC beta installation of
IRAF and X11IRAF.

...

6927

By: fitz

08/08/2007 03:32PM

i have a question about APALLStarted by:owen, 07/04/2007 03:36PM
Dear all, i have a question when
reducing slit spectra with IRAF.

In the task APALL, what does "width"
mean? It says that "Profile centering
width".
But i can't understand the meaning, or
the essence.

My work is to reducing 2D-spectra of
nearby galax...

3566

By: owen

07/04/2007 03:36PM

dopcor: "No correction specified...Started by:malte, 06/07/2007 02:49PM
I'm trying out dopcor under Pyraf.
Using more or less the same parameters
as the example in the help, I'm getting
the same error every time, No correction
specified.

[code:1:2f35d3f6a8]--> dopcor del0
del0v redshift=-vhelio isvel+
Killing IRAF ta...

5510

By: malte

06/07/2007 02:49PM

How can I get package stsdas.sobsolete?Started by:jay, 06/03/2007 03:17PM
How can I get package stsdas sobsolete?
I want to use the syntax of "Convert"

Thanks a lot!

Jay

4026

By: jay

06/03/2007 03:17PM

converting from .imh to .fitsStarted by:massey, 05/21/2007 01:38PM
Mike, et al---

Sorry to ask such a simple question, but
this one has been confused. I have
a bunch of old blah.ms.imh files, and
I'd like to convert these to fits
(blah.ms.fits). So I did the following:
files *%.imh%% > old
imrename @old//.imh @old/...

6898

By: massey

05/21/2007 01:38PM

guiapps segmentation violation on macosxStarted by:sirmarcos, 02/05/2007 07:10PM
Hello,

I tried the pre-compiled binaries of
guiapps for macosx (ppc) today and all
guiapps programs produced a segmentation
violation. So, I then tried to rebuild
them binaries from the source and
several errors occured, and no
x_spectool.e gets creat...

4528

By: sirmarcos

02/05/2007 07:10PM

Using defpac functionStarted by:figueira, 01/15/2007 12:51PM
Hello!

I'm trying to make my reduction programs
a little bit robust in order to share
them with my team members. I'm starting
to use tasks such as "defpac" in my
scripts and I have a few problems.
Here is my file for "def_test.cl"

def_test.cl:

######...

4616

By: figueira

01/15/2007 12:51PM

Using Background Tasks on multi-proc...Started by:sirmarcos, 01/11/2007 10:30PM
So, I'm now running IRAF on a lovely
quad-core Mac Pro. Since IRAF by and
large is single threaded, I'm looking
for ways to speed things up and take
advantage of all my cores. For example
wheN I reduce spectra I typically
generate a "doit" file that i...

5033

By: sirmarcos

01/11/2007 10:30PM

fixpix interpolationStarted by:figueira, 11/29/2006 02:23PM
Hello!

I'm in what has already been called here
an "iraf moment". I am trying to use
FIXPIX to interpolate a few bad pixels,
specified in a mask created by the task
CCDPROC. I can only get fixpix to
interpolate through columns. This
produces very wierd...

4350

By: fitz

11/29/2006 02:23PM

Finding header key-wordsStarted by:FSBoyden, 11/23/2006 09:14AM
Hi all

I am trying to fix image headers, and
have looked at hedit, hselect, hfix, as
to what they say. The thing is that I
want to do it in a batch mode.

Full story: For some of our datasets
there are no airmass, RA, dec, ...
values/fields in the head...

4737

By: FSBoyden

11/23/2006 09:14AM

S/N per pixel spectrumStarted by:paulartcoelho, 10/17/2006 07:08PM
hi there,

this should be obvious, but i confess
i'm confused.

i extracted a longslit spectrum using
apall, and did variance weighting,
extracting the extras spectra (raw,
background and sigma).

i need to obtain a kind of "S/N per
pixel spectrum as a...

10406

By: ozbasturk

10/17/2006 07:08PM

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