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Last Post

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...

755

By: tonisee

09/13/2014 03:23PM

SAOImage DS9 7.4b1 is availableStarted by:joye, 06/03/2015 03:31PM
SAOImage DS9 7.4b1 is available at
http://ds9.si.edu/site/Beta.html.

This version contains a number of bug
fixes address issues with IRAF. In
particular, connection issues between
DS9 and IRAF have been corrected.

Regards

bill joye

752

By: fitz

06/03/2015 04:26PM

IMEXAMINE using RAStarted by:ovince, 08/20/2018 09:15PM
Hi All,

I am trying to use IMEXAMINE in a script
like

[code]imexamine(FITSfl, frame=1,
imagecur="forImcomm",
logfile="res_imexam", keeplog="yes",
use_display="no")[/code]

where 'forImcomm' ia a file with stars
RA and DEC in degree as show b...

750

By: ovince

08/20/2018 09:15PM

Setting daopars.maxnstar in PyRAF to ...Started by:debrunlm, 09/16/2015 02:28PM
Hi,

I have been having an issue trying to
set daopars.maxnstar to a higher value
than the default of 50000 in PyRAF. In
the script I have
iraf.daopars.maxnstar.p_max = 200000
this results in the following error.

Traceback (innermost last):
File...

750

By: fitz

09/16/2015 07:53PM

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 ...

747

By: debrunlm

10/20/2014 09:01AM

CCDPROC and Zero/flatcombine QuestionStarted by:chaorun, 05/10/2016 05:35PM
Hello everyone.
I am a new graduate student, Use
irafv216 in MacOS 10.11.4.
My Question is :

When I process FITS files using CCDPROC,
ZEROcombine,flatcombine.
I will get the good output files.
BUT there is no screen output to show
what the progra...

739

By: fitz

05/11/2016 05:11PM

Pixel storage file is truncatedStarted by:Pamela, 07/10/2018 10:04PM
Hi,

While trying to do image reduction this
error stopped my mojo:

ERROR: Pixel storage file is truncated
(hatp27-026.fit)

I read similar questions from 2012 but
did not understand how they solved the
problem.

I am running iraf v.2.6.1 for l...

729

By: fitz

07/18/2018 07:12PM

input redirectionStarted by:marco.03, 07/09/2014 05:05PM
according to
[url]http://iraf.noao.edu/faq/FAQsec12.html[/url]
I should be able to run cl script from
any shell by doing:
[quote]% cl [code]
imstat dev$pix
logout
[/code]
using the [quote]cl -old

726

By: marco.03

07/09/2014 05:22PM

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...

723

By: haha

08/17/2014 09:24AM

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 ...

722

By: ircarrascal

08/26/2014 08:48PM

Please use DS9 version 7.5 with IRAFStarted by:joye, 07/03/2018 08:24PM
It has come to our attention there are a
number of issues with DS9 version 7.6
and IRAF. These issues have been
addressed and a new version of DS9 will
be available with the release of our
next beta version, 8.0b1.

We recommend the use version 7.5 av...

720

By: joye

07/03/2018 08:24PM

Ignoring a given pixel value when dis...Started by:vickys, 02/26/2014 12:49AM
I'm working with the command line
version of daophot (not iraf) and when I
run allstar some pixels in the
subtracted image are given a value of
-1E19. Up to now I've been using
imreplace to switch these pixels to zero
so I can display the image properly...

717

By: fitz

02/26/2014 01:35AM

fitsky with a maskStarted by:vsravani, 10/02/2013 05:36PM
Hi..
I am trying to obtain the skyvalue using
fitsky. There is a bright source in the
annulus region that I considered. So, I
masked those pixels using fixpix task.
The fixpix task created a new fits
image. I used this new image as input
to the fit...

710

By: fitz

10/22/2013 10:00PM

SPLOT task does not display the right...Started by:Amanpreet, 10/26/2017 06:54PM
Hi all,

My splot package does not display the
right information for any command. e.g.
if I want to check the position of the
cursor, it does not display the
wavelength and flux for a spectrum. It
is not working on any spectrum and I
tried "unlearn sp...

709

By: Amanpreet

10/26/2017 06:54PM

CCMAP & WCS & PIXEL SCALEStarted by:Diego Farías, 12/17/2015 02:46AM
I have a question guys... Does CCMAP
have a limitation of pixel scale (as a
fitting parameter)? I'm working with
images of 0.125 arcsecond/pixel and I
have encountered problems with CCMAP and
plate solutions.

As a 'safety test', I've tried to
const...

709

By: Diego Farías

12/17/2015 02:46AM

imarith help fixStarted by:Jason Quinn, 09/30/2015 09:40PM
In example 4 in imarith's help, the
pixtype and calctype values are
switched. The command should read

[code]
cl> imarith image1 / image2
image3 pixtype=short \
>>> calctype=real
title="Ratio of image1 and image2"
[/code]
...

703

By: fitz

09/30/2015 10:34PM

Confusion over paremeter entry with p...Started by:mdurre, 01/15/2014 04:04AM
Hi, I'm confused how to handle
parameters for tasks with or without
parentheses. E.g. [code]gemlist aaa
100-102[/code]produces
[code]aaa0100
aaa0101
aaa0102[/code]and the output can be
piped to a file, e.g.
[code]gemlist aaa 100-102 >
filelist[/code...

702

By: mdurre

01/15/2014 04:41AM

How to select objects which match the...Started by:constant, 09/26/2015 01:49PM
Hi,

I use noao.digiphot.daophot.psf task to
get psf image of a object. I want to
select objects which match the psf.

Which task or package can help me do
this job?

Thanks!!

Weida Hu

701

By: fitz

09/29/2015 05:04PM

using imexam with ra/dec coordsStarted by:jcadien1, 07/21/2015 03:32PM
For a long time I have used imexam in
bash scripts, passing to it coords in
x,y format. I now would like to use
ra/dec instead. I have tried this and I
get garbage output. I have played with
the wcs parameter, as well as the
formats. Nothing works. Whe...

698

By: jcadien1

07/21/2015 03:32PM

transformation equations for SDSS fil...Started by:iraf_astro, 05/09/2017 01:03AM
Hi,

I have been struggling lately to find
transformation equations to convert
instrumental magnitudes to calibrated
ones for the ugriz system. In IRAF,
landolt transformation equations
(photcal/catalogs package) are provided
for UBVRI system, but the...

695

By: fitz

05/09/2017 04:35PM

iraf 2.16.1 not recognizing options -...Started by:marco.03, 07/10/2014 06:00PM
Hi.
the cl startup scripts (cl, ecl and
vocl) in IRAF v2.16.1 do not recognize
options, like '-old' or '-ecl'. I traced
the problem to the 'if' inside the
'case' statement at the start of the
bash scripts (lines 16-44).

Two things should need to be ...

692

By: marco.03

07/10/2014 06:00PM

interactive response window not workingStarted by:xjs0118, 11/20/2018 07:04PM
Hello,

I'm attempting to use
noao>twodspec>longslit's response
interactively. However, although the
window allows me to input commands (e.g.
:order 5), when I replot via 'r', only
the header updates. The actual plot does
not. This originally occurred...

688

By: xjs0118

11/20/2018 07:04PM

Opening ImagesStarted by:scblankenship, 11/11/2013 01:08PM
Im very new to iraf and I am currently
using iraf11. Im currently not able to
look at the images i have saved would i
be possibly missing something making it
not possible to open the images with
mplot or could i even be using the wrong
command.

680

By: fitz

11/11/2013 05:04PM

RESPONSE fit functionStarted by:nippur_1967, 07/03/2014 06:03PM
Reduction of long-slit spectra.

When you run the task RESPONSE to flat
averaged (dome or lamp) a function is
necessary to fit in the direction of the
dispersion.

I want to know that criteria used to
select the function and order.
Of course that i...

679

By: nippur_1967

07/03/2014 06:03PM

Getting rid of standing wavesStarted by:sscibell, 09/18/2015 08:46PM
Hello,

Is there is a way in iraf to get rid of
standing waves in spectra files?

Thanks!
S

677

By: fitz

09/18/2015 11:12PM

Scripting questionStarted by:massey, 05/29/2018 04:14PM
I’m calling “phot” within a
script, and I’d like to give it three
different aperture sizes. If I were
doing this with numbers I would say:

phot(s1,"default","default",datamax=dataxv,datamin=datanv,apertur=“3,5,7",calgori="none",interact-,...

676

By: fitz

05/29/2018 04:21PM

Bug in IRAF install scriptStarted by:astrorafael, 12/15/2015 03:32PM
Hi:

I have found a small bug trying to
install IRAF. Running instal script
--system gave me an error in line 1006

Installed IRAF wSystem account with bash
as the SHELL

Patched the script like this

[code]1006c1006
< if (( "$err_seen...

675

By: astrorafael

12/15/2015 03:32PM

2D image change unitsStarted by:sscibell, 10/12/2015 10:38PM
Hello,

Is there a task in iraf that can convert
units of a 2D image? For example, from
deg vs. wavelength to arcsec vs.
velocity?

Thanks!
SS

667

By: fitz

10/21/2015 04:01PM

doslit assign arc spectra problemStarted by:dofey, 10/06/2018 03:43AM
Hi,
I'm running doslit and I'm getting the
following error:
Assign arc spectra for [imgname]
No arc reference assigned for [imgname]

It's also not creating the
"idobj1arc1.ms" files

What is going wrong?

PACKAGE = kpnoslit
TASK = doslit
...

666

By: dofey

10/06/2018 04:27AM

Tasks not recoginzing subsections in ...Started by:dagorym, 06/17/2016 04:59PM
I'm trying to do a simple listpixels
command like this:

listpixels image1.fits[234:244,124:134]

and instead of giving me just the pixels
in the subsection specified, it's giving
me all the pixels in the file. It's
like it's not even recognizing t...

663

By: fitz

06/17/2016 08:48PM

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