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Last Post

daoedit gives weird text when pressin...Started by:andrej, 01/11/2015 06:58PM
Greetings. I am trying to learn how to
use daophot and daoedit. I am trying to
follow an introduction located at:
http://www.astro.washington.edu/courses/astro480/IRAF/iraf5_tutorial.html

though I am using my own data. I already
typed

help daoedi...

2397

By: fitz

02/01/2015 05:22PM

IRAF v2.16 fails at startup in mac os...Started by:jlowenthal, 09/05/2012 02:12PM
On a new imac with 2.8 GHz Intel Core i7
running os x 10.8.1, I've tried
installing IRAF several ways,
especially: (1) using the scisoft
distribution, and (2) using the binaries
in iraf-macosx.tar.gz downloaded from
iraf.net. The install script returne...

10992

By: paulartcoelho

01/29/2015 05:12PM

listing pixels in a circular apertureStarted by:nk, 01/16/2015 12:57PM
Hello

Is there any way in iraf to list pixels
in a circular aperture (defined by its
radius) ?

(as far as I know, "listpix" in iraf
allows to list pixels either for the
whole image or for a rectangular area)

Thank you

1085

By: fitz

01/16/2015 04:38PM

Basic questions How to define string ...Started by:andrej, 12/15/2014 06:13PM
Greetings. I am struggling so much to
find some basic information but when I
run a bunch of general internet
searching, and search through the manual
and the help in IRAF itself, I can't
find answers to some basic things (tried
on a few different days a...

1852

By: fitz

12/16/2014 04:23PM

No write permission on file (DECam 2014)Started by:andrej, 09/15/2014 01:10PM
GREETINGS.

I am also having the same problem as
ste_atreb is having in this thread:

https://iraf.net/forum/viewtopic.php?forum=4&showtopic=1467707&highlight=No%20write%20permission%20on%20file%20(String_File)

I am trying to process imag...

4267

By: andrej

12/15/2014 08:42PM

splot output fileStarted by:Alaa, 12/14/2014 06:44PM
Hello,
I need some help regarding splot. I'm
looking for a way to control the output
file of splot task.
I use the following command to analyze
my spectrum and save the results to the
output file of the splot

> splot spec1.fits
save_file="spec1-s...

1858

By: fitz

12/15/2014 05:01PM

Extract magnitudes from spectraStarted by:bai, 12/03/2014 09:11AM
Hi,

Is there any procedure of IRAF to
extract magnitudes from spectra?

Thanks

Yu

2085

By: fitz

12/03/2014 04:42PM

Problems with DS9 on Fedora 20 x64Started by:Thin_icE, 10/23/2014 04:42PM
I recently performed an installation of
IRAF on a computer running Fedora 20
x64, and whenever I try to run the test
command:
[code]display dev$pix 1[/code]

I get the infamous error:
[code]ERROR: Cannot open device
(node!imtool,,512,512)[/code]

...

2843

By: fitz

12/02/2014 10:34PM

segmentation violationStarted by:giannicatanzaro, 11/21/2014 05:29PM
Hi

I installed the new 2.16.1 on my
openSUSE 12.1 laptop and I got some
problems:

if I use "imdelete" or "ccdproc" I got
the errors "segmentation violation", and
of course I did not
have this problem with the 2.15 on the
same computer

any help...

1162

By: fitz

11/25/2014 07:25AM

Launch ecl with argumentsStarted by:jmiguel, 11/11/2014 07:21PM
Hello all:

anybody know if it is possible to launch
iraf (ecl) with an .cl script file as an
argument from the command line. For
example, from a xterm:

myuser@mycomputer:~> ecl

I know you can run .cl scripts from IRAF
shell, but I'd like to run...

1610

By: fitz

11/18/2014 06:28AM

Iraf script from shell on YosemiteStarted by:jdownes, 11/01/2014 10:40AM
Hello

It is probably a really basic question
but I could not find any reference
in previous posts.

I recentelly installed IRAF v2.16.1 on
OSX Yosemite. All the task I used
since the installation are working
properly if I run them from the IRAF
...

1887

By: fitz

11/18/2014 06:22AM

Problem running iraf on a 64 bit macStarted by:EmilyDick, 10/15/2014 04:21PM
I have issues installing iraf on a 64
bit mac. I went through the install
process here
http://www.iac.es/sieinvens/siepedia/pmwiki.php?n=HOWTOs.IrafMacOSX.
However, I get this error when I run cl
after installing:

bash-3.2$ cl
Warning: iraf=/Users/e...

7080

By: fitz

10/29/2014 08:48PM

Problems with qphotStarted by:Giorgio, 10/29/2014 06:39PM
When I run qphot, I get this warning:
"Graphics overlay not available for
display device".

What does it mean?

Thanks
Giorgio

1134

By: fitz

10/29/2014 06:42PM

data typesStarted by:CosmicLettuce, 10/27/2014 12:49PM
I have a FITS file with the following
header segment:

% less section.fits
SIMPLE = T / file
does conform to FITS standard

BITPIX = 16 / Number
of bits per data pixel

NAXIS = ...

885

By: fitz

10/27/2014 03:34PM

failure in setting imtype in login.cl Started by:amagaz, 10/21/2014 06:37PM
Hello

I have a problem with iraf 2.16.1 in
ubuntu 14.04 (64bit)

There must be something overriding the
value of imtype I give in the login.cl
or loginuser.cl, because whatever I set
there, a "show imtype" gives me "fits",
and new images are creat...

1183

By: amagaz

10/22/2014 07:40AM

imalign problemsStarted by:sinn1231, 06/04/2014 05:19PM
Hello!
I have been trying to use imalign to
align my images (obviously), and have
run into an error. I get a warning sign:
Warning: Reading file, only one value on
line. Which results in an error with no
shifts calculated. I cannot seem to find
what I ...

1603

By: fitz

10/20/2014 09:52PM

PSTSELECT picking stars that have val...Started by:debrunlm, 10/20/2014 09:01AM
Hello,

I am currently doing photometry on
single drizzled WFPC2 images of globular
clusters. The cosmic rays have been
flagged at 100000 and the datapars
datamax is set to avoid these high
values. Setting the datamax works to
avoid these high values ...

743

By: debrunlm

10/20/2014 09:01AM

illuminationStarted by:Mike Potter, 10/07/2014 04:02PM
I think I've looked in all the usual
places - but I cannot find help for the
illumination task - even on this site.
As an example,

noao$twodspec/longslit/doc/illumination.hlp'

does not seem to exist. I'm using
PC-IRAF Revision 2.16.1 EXPORT.

...

1034

By: Mike Potter

10/08/2014 03:45AM

Max file sizeStarted by:CosmicLettuce, 10/04/2014 06:58PM
I have a ~2.6GB fits file with
extensions, and I'm getting a 'Cannot
open file' error message when I try to
do something as simple as imhe. Is this
file too large?

Thanks as usual --- Cosmic

962

By: fitz

10/06/2014 03:43AM

Imarith adding extensions to .fits filesStarted by:eduardowoj, 09/25/2014 09:22PM
Hello!

I'm doing IR photometry with IRAF. To
summarize, I have my science images
(dark subtracted and bias corrected) and
sky-only images which I need to subtract
from my science images. The problem is:
When I run imarith to subtract the sky
images f...

2553

By: eduardowoj

10/01/2014 12:54PM

psfmeasure "Pixel subscript out of bo...Started by:jmiguel, 09/17/2014 10:49AM
Hi everybody,

I am running psfmeasure with a 32x32px
image with a unique star in the center
of the field, and I get the next
message:

Warning: Pixel subscript out of bounds.

and thus no other result is obtained.

Do you have any suggestion to...

2892

By: jmiguel

09/19/2014 08:39PM

what the key graph Started by:Johanna, 07/09/2014 08:29AM
Hi,

I want to make the absolute calibration
with IRAF. For this I use the photcal
task. I have already done the different
catalogues and I use fitparam in
interactive mode. But I want to fit the
Bouguer's line and I don't know which
parameters to cho...

747

By: tonisee

09/13/2014 03:23PM

memory usageStarted by:massey, 09/12/2014 04:59AM
I'm running a script to reduce some data
from Las Campanas, and I realized that
it was gobbling up all of my machine's
memory (32Gb) in a matter of a a few
minutes. (This is on one of the new Mac
Pro's running Mavericks; I see similar
behavior on my la...

1070

By: fitz

09/12/2014 08:22PM

Start IRAF without internet connectionStarted by:jmiguel, 05/19/2014 05:19PM
Dear all,

I would like to know if there is some
way to config IRAF when
the computer has no internet connection
in order to avoid the next warning:

cannot access host 'iraf.noao.edu:80'

I have next versions:

- PC-IRAF Revision 2.16.1
- PyR...

3437

By: raph38

08/28/2014 06:55AM

xgterm freeze after ubuntu upgradeStarted by:ircarrascal, 08/26/2014 08:48PM
This is actually a problem solved, but I
wanted to share in case someone needs
it.

Recently I upgraded to Ubuntu 14.04 and
installed IRAF v2.16.1. When using
xgterm, after 10-30 seconds the system
would freeze and I had no choice but to
reboot every ...

719

By: ircarrascal

08/26/2014 08:48PM

stitching four images into oneStarted by:massey, 08/21/2014 01:25PM
I'm using a CCD camera that reads out
through 4 amplifiers and (sadly)
generates four separate images: c1, c2,
c3, and c4, each 2048x2056. I'm writing
a simple pipeline for putting the pieces
back together into a single 4096x4112
image after removing t...

1061

By: massey

08/21/2014 04:12PM

ERROR: segmentation violation ---cosm...Started by:haha, 08/17/2014 09:24AM
I find a similar topic here
https://iraf.net/forum/viewtopic.php?showtopic=1465779
However my system is linux 64 bit.
After I download
ftp://iraf.noao.edu/iraf/v216/support/linux64/x_crutil.e
, put it in noao.bin.linux64 and make it
executable, the pr...

719

By: haha

08/17/2014 09:24AM

stdimage in ds9Started by:grijs, 08/13/2014 09:25AM
Hi, I'm helping a student to set up Iraf
to display HST images
properly -- she's been struggling to run
some commands (which worked
fine on my own computer), so we found
out that while the images are
1600x1600 pixels, the default ds9
display setting ...

3179

By: fitz

08/13/2014 04:25PM

Imexa problemsStarted by:chengxinlun, 07/26/2014 01:33PM
Dear Sir/Madam, recently I installed
IRAF (x64 v2.16.1) on Linux (Ubuntu
14.04 LTS x64) and DS9 (v7.2 x64).
However, I encounter problems running
"imexam" function. All the parameters,
such as "a", "s","l"..., I type don't
response at all except "q". I ...

5041

By: chengxinlun

08/13/2014 01:38PM

PANIC from x_ccdred.eStarted by:jmccormac001, 07/25/2014 06:47PM
Hi Guys,
I am running IRAF 2.16 on OS X Mavericks
as part of scisoft and get an error from
ccdproc when trying to reduce some
science images.

PANIC in
`/usr/local/scisoft//packages/iraf/iraf/noao/bin.macintel/x_ccdred.e':
Memory fwa has been corrup...

1195

By: fitz

08/01/2014 04:58AM

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