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Plotting and doing calculations on te...Started by:FSBoyden, 05/16/2007 02:58PM
Hi all.

The differential photometry pipeline I'm
building is basically done. Now I would
like to do some extra "stuff"

When the psf photometry task has run, I
use a script to dump the neccesary
fields with the help of "txdump" to a
text file. Example....

5392

By: fitz

05/16/2007 02:58PM

Spectool: Equivalent Width measuremen...Started by:keflavich, 03/31/2006 01:40AM
I've been trying to compare a few
spectra of the same object taken on
different observing nights to see if sky
subtractions varied and how they were
affected by the sensitivity functions
(they're at different wavelengths, so
they behave differently at t...

5377

By: sirmarcos

03/31/2006 01:40AM

help me installing stsdasStarted by:rocker_milan, 08/16/2009 02:26AM
hi everyone, i'm newbie for linux..
but, like or not i have to used linux
for my course.
i'm using suse ver 10.2 and iraf ver
2.12, and unpacked the stsdas&tables
ver 3.10 in home/iraf/iraf/local/tables
and home/iraf/iraf/local/stsdas

i have a prob...

5351

By: rocker_milan

08/16/2009 02:26AM

guiappsStarted by:Guest, 02/26/2006 12:06PM
I've checked the extern.cfg file for
correct path or permission but when i
try to use guiapps package this error
appears:

ERROR: task `guiapps' has no param file

What can I do? My OS is a Kubuntu linux
distro with the last version of Iraf and
X11

Tha...

5349

By: fitz

02/26/2006 12:06PM

Rotation and flipping image of spectrumStarted by:pskoda, 03/15/2007 06:34PM
Hello,

I have problems with simple rotation and
flipping 2D image of spectrum followed
by apall and identify. What I want is
to physically rotate and/or flip image
by changing the pixels contents not just
transformation matrix keywords. The
problem ca...

5308

By: pskoda

03/15/2007 06:34PM

Extracting specific rows with apallStarted by:rachelm, 07/23/2008 12:05AM
Hi,

Is there a way of non-interactively
telling apall to extract specific rows
from a data set? I.e., specifying the
aperture centre on the command line?
I've been able to set the aperture width
on the cl, and set the centre using the
colon keys in int...

5288

By: rachelm

07/23/2008 12:05AM

isoexamStarted by:JN, 06/06/2006 03:47PM
Hi-

I ran ellipse
(stsdas.analysis.isophote.ellipse) on
one of my images and it successfully
made an output table (gal.tab). Now I
am trying to overplot the ellipse
contours from the table onto my galaxy
fits image in ds9. I can plot the
contours whe...

5266

By: fitz

06/06/2006 03:47PM

2x2 binning of imagesStarted by:BrainBug, 12/25/2006 10:50PM
What i must to do for make 2x2 binning?
What command can help me with this task?
Thanks.

5250

By: fitz

12/25/2006 10:50PM

hedit and '-' in keyword nameStarted by:esemenko, 11/10/2006 01:48AM
Hi!
Recently i asked about my troubles with
displaying of some .fits files. I have
found that problem was in incorrect data
written in header. Keyword NAXIS=2,
NAXIS1 and NAXIS2 both are equals to
2052. BUT! I have also third keyword
NAXIS- which equal ...

5247

By: BrainBug

11/10/2006 01:48AM

sigma spectra in spectoolStarted by:Guest, 10/11/2005 03:46PM
On Tue, 04 Oct 2005 17:16:00 -0700 Achim
wrote:

> Hi Phillip,
>
> I am using SPECTOOL to fit Gaussian
line profiles and would like to
> use the error estimation function.
However, I have difficulties
> assigning a sigma spectrum to th...

5237

By: Guest

10/11/2005 03:46PM

Problem with display commandStarted by:John Nerwinski, 05/12/2008 11:24PM
I am running IRAF and apextract, and I
am in the directory with my spec data,
but I cannot get the command 'display'
to work. I type display
spec0159.a.fits, and it comes back with:

ERROR: connot open device
(node!imtool,,512,512)

I have a ds9 SAOIma...

5222

By: fitz

05/12/2008 11:24PM

imexam cursor problemStarted by:mohack, 05/22/2010 09:55AM
Hi!
I just installed IRAF 2.14 with x11iraf
3.11 and DS9 6.1 on my ubuntu 10.4
machine. The startup works fine using
xgterm, but when I display an image and
execute imexam, I don't get the circular
blinking cursor, but a blinking arrow
with a "no" sign ...

5208

By: tonetty

05/22/2010 09:55AM

creating a mosaicStarted by:jellyman, 01/18/2011 06:24PM
Hello.

This might be not a IRAF specific
question, but I thought of asking anyway
( maybe it can be done through iraf ).

I have many fits images, from the same
patch of the sky, obtained with the same
instrument. The astrometry has been done
on them. ...

5207

By: fitz

02/06/2015 05:46PM

problems with sbandsStarted by:, 07/24/2006 02:32PM
I am using sbands for the determination
of the equivalent width of an absorption
line in a stellar spectrum.

Using the mean location and width of the
line and setting the pseudo continuum
parameters on the left and right of the
line,
gives me in 1 case...

5207

By: valdes

07/24/2006 02:32PM

ccdproc problems on a new 2.16.1 systemStarted by:Charles Knox, 04/04/2014 08:07PM
We have been using ccdproc from the
mscred package to do processing of data
from the Burrell Schmidt on Kitt Peak.
The data is 4kx4k and is read out with 4
amplifiers. There is an overscan for
each amp. We take a raw file and use
mkmsc with a data fil...

5179

By: fitz

04/04/2014 11:11PM

display @ mac os xStarted by:paulartcoelho, 03/10/2006 08:50PM
hello,

i'm working on photometry taken in
gemini, which has a fits file organized
in MEFs. in order to work easier with
other packages i'm used to imcopy the
gemini file to a "normal" fits file.
something like :

imcopy halo_pos2_i[sci,1,inherit] foo

...

5165

By: paulartcoelho

03/10/2006 08:50PM

Error in compilation process.Started by:azastro, 05/12/2007 11:01PM
Hi all.

I try to compile simple
program from sppguide.ps
(author Rob Seaman).
[i:b63a1d0b92]task hello = t_hello_world
procedure t_hello_world()
begin
call printf("hello world\n)
end[/i:b63a1d0b92]

In compilation process I see
message:

[i:...

5164

By: fitz

05/12/2007 11:01PM

MSCRED ErrorStarted by:joshw, 11/18/2008 11:24PM
Hi,

I just installed IRAF on a Mac OS X 10.5
intel machine and though IRAF appears to
work, MSCRED seems to have problems. I
can load the package, but when I run a
task, I get the following:

ERROR: Cannot open connected subprocess
(./x_mscred.e)

It ...

5158

By: joshw

11/18/2008 11:24PM

nfit1dStarted by:lyra, 02/13/2006 10:24AM
Is there a way to iteratively fit the
same function (all the user parameters
remains the same) using nfit1d to a set
of tables containing 2 columns (x,y)?
-Raa.

5147

By: raa

02/13/2006 10:24AM

frequent "memory has been corrupted" ...Started by:Guest, 10/07/2005 11:15PM
Greetings,

I seem to be getting this error quite
often now with iraf 2.12:

grosa@xi:/sandbox/grosa$
/iraf/irafbin/noao.bin.linux/x_artdata.e
'mkobjects input=tmpl3.fits
output=t1.fits objects=out1 xoffset=0
yoffset=0 star=moffat distance=1
background=...

5127

By: Guest

10/07/2005 11:15PM

error estimates with SPLOTStarted by:danila, 10/04/2006 06:17PM
Hello everybody!

I am trying to learn how to estimate
errors of line fluxes determination by
SPLOT. As I understand from "ERROR
ESTIMATES" part of description of SPLOT
help it is needed to specify two
parameters: "inverse gain" or invgain
and "constan...

5098

By: fitz

10/04/2006 06:17PM

Transforming a 1x1 binned image to 2x...Started by:dschumac, 10/31/2009 08:57PM
Does anyone know if there is a way in
IRAF to take an image that is binned 1x1
(so say 1024x1024 pixels) and change it
into a 2x2 (in this case 512x512 pixel)
binned image?

My problem is that I have star images
binned 1x1, but I only have correction
im...

5095

By: fitz

10/31/2009 08:57PM

displaying with ds9Started by:Gerhard, 03/20/2008 06:41PM
Hi!
I tried to log on on my second machine
using "ssh -Y" and then to run iraf
there. everything worked fine except
opening ds9. Then I get the following
message:

[quote:5b3f137fc4]ecl> !ds9
Application initialization failed: no
display name and n...

5093

By: fitz

03/20/2008 06:41PM

astutil and artdataStarted by:dbrenner, 09/13/2006 03:23PM
What site should I use to download these
packages?

thanks

5080

By: dbrenner

09/13/2006 03:23PM

asthedit problemStarted by:JediWill, 06/28/2006 08:48PM
Hi everybody,

I am trying to update the headers of my
image files with asthedit. I am using a
.cmds file. The problem I am having is
that I am getting a syntax error when I
try to run it. I have V2.13 installed.
The weird thing is that when I use a
sch...

5059

By: fitz

06/28/2006 08:48PM

imcombineStarted by:vak, 01/11/2008 09:31PM
Hi, I have a question about imcombine.
Suppose I have N images and run
imcombine on them using combine=average
(or median) and reject=avsigclip. Then I
invert each image (multiply each image
by -1) and run imcombine on them using
combine=average (or me...

5052

By: valdes

01/11/2008 09:31PM

Inclusion of USNO-B1 catalog in astro...Started by:, 12/19/2005 09:18PM
Hi,

I've seen some past discussion about
including the USNO-B1 catalog in the
astrometry tasks in the MOSAIC and
ASTCAT packages, but I don't see it
anywhere yet. (I'm particularly
interested in accessing it in AGETCAT.)
Has this been implemented in ...

5039

By: fitz

12/19/2005 09:18PM

disptrans : Image header parameter no...Started by:paulartcoelho, 05/08/2006 07:37PM
hello,

i'm trying to use disptrans to transform
an SDSS spectrum from vaccum to air
wavelength but i get

onedspec> disptrans sloanstar1
sloanstar1air angstroms air=vac2air
Warning: Image header parameter not
found (EXTVER)

I read in another foru...

5030

By: paulartcoelho

05/08/2006 07:37PM

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...

5029

By: sirmarcos

01/11/2007 10:30PM

A Problem with DAOPHOTStarted by:salis, 09/29/2006 01:29PM
Dear IRAF people,

I am trying to use DAOPHOT with my CCD
observations.

But I get the error below when I run
daofind. Do you have any idea what this
error related with?

There was an old topic in the Forum I
found also concerns the same error. But
sol...

5025

By: fitz

09/29/2006 01:29PM

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