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IRAF Login - Slow startup times solutionStarted by:admin, 03/05/2019 05:49PM
On March 1, NOAO disabled access to the
iraf.noao.edu website from outside of
the firewall (see
[url]http://ast.noao.edu/data/software[/url]).
As a side-effect, the CHKUPDATE command
in the login.cl file that uses the
website to check for package updat... 		 
2626 0
By: admin
03/05/2019 05:49PM
Normal Topic
pvector script cant appendStarted by:JCP, 06/26/2018 04:53PM
Dear IRAF gurus,

I have a script which repeatedly calls
pvector and is supposed to put several
pvector plots in one output FITS file.
It works fine on one of my computers (a
laptop), but fails on several other
computers. Each computer is running
Li... 		 
429 0
By: JCP
06/26/2018 04:53PM
Normal Topic
HARPs dataStarted by:jirizak1, 07/27/2018 10:50PM
Hello IRAF users

I have run into a trouble with datas
from HARPs. I have tried to run fxcor
task on two spectras however it says no
velocities will be computed (see the
screen). I have used the sptable package
that is recommended by ESO to use on
HAR... 		 
465 1
By: fitz
08/01/2018 06:39PM
Normal Topic
linux64 vocl with enlarged dictionaryStarted by:fakahle, 08/26/2018 08:24AM
Hi guys,

an error poped up last time I tried to
submit my questions:
"Unfortunately, an error has occurred
rendering this page. Please try again
later."

So here I go again;-)

I need to to recompile vocl to enlarge
the dictionary but recompilin... 		 
505 0
By: fakahle
08/26/2018 08:24AM
Normal Topic
Iraf Flat Combine ScaleStarted by:mshemuni, 09/27/2018 07:28PM
I'm trying to create a mini version of
IRAF for automaton of our observatory.
Basically I need to do calibration
first.
I was able to create zerocombine,
darkcombine successfully usişng
python and numpy.
When it comes to flatcombine there is
sca... 		 
578 0
By: mshemuni
09/27/2018 07:28PM
Normal Topic
Random Spectra fall offs after apallStarted by:JoeyZ, 09/05/2018 05:53PM
I am trying to reduce some spectra data
and the process seems to be going fine
until I run the apall task. When I run
apall I find that some of the orders
have this issue:
https://imgur.com/a/xY9c08c
As you can see the order falls off half
way through ... 		 
588 0
By: JoeyZ
09/05/2018 05:53PM
Normal Topic
Meta codeStarted by:stefano, 08/26/2015 12:05AM
Hello,

I would like to know if there is a way
to read the contents of a meta file. In
particular, I am interested in the meta
code generated by the task "FITPROS". It
shows the fit, continuum and data all in
the same plot. I would like a way to
read ... 		 
625 1
By: fitz
08/26/2015 04:04PM
Normal Topic
When I run apall none of the keystrok...Started by:e.longstaff, 09/12/2018 02:40PM
Hi,

I have a 2D spectrum and I'm trying to
extract the 1D spectrum. When I run
apall none of the keystroke commands
work within the gterm-iraf window.
Here's a link to a screenshot of where I
get stuck: https://imgur.com/0WspfB1 .
If that helps.

I... 		 
627 0
By: e.longstaff
09/12/2018 02:40PM
Normal Topic
IGI doesn't start...Started by:fabvitali, 04/29/2016 09:05AM
Dear Sirs,

I have set up an automatic procedure to
reduce the infrared images from the
REMIR camera at REM (La SIlla). In this,
I would like to use the IGI graphic
interpreter but I can’t even start
using it. I am using the EXPORT V2.15.1a
IRAF ver... 		 
630 1
By: fitz
05/05/2016 10:09PM
Normal Topic
How does fitparams obtain the sigma c...Started by:Gaba_p, 05/05/2017 01:53AM
I'm trying to reproduce the 'sigma'
column returned by the photcal.fitparams
task
(http://stsdas.stsci.edu/cgi-bin/gethelp.cgi?fitparams);
see page 32 of the guide:

https://www.mn.uio.no/astro/english/services/it/help/visualization/iraf/daophot2.pdf ... 		 
635 0
By: Gaba_p
05/05/2017 01:53AM
Normal Topic
fitparams deletes points irrespective...Started by:Amanpreet, 04/25/2017 02:32PM
Hi.

I am using IRAF on ubuntu 16.04 and a
task called fitparams in the
photcal.fitparams package will not let
me delete the points close to the
cursor. It deletes the left-most point
independent of the cursor position. 		 
637 2
By: Amanpreet
04/25/2017 08:29PM
Normal Topic
Astrometry Tasks problemStarted by:AAKANKSHA, 06/26/2019 08:09PM
Hi Fitz,
I want to perform astrometry and
photometry on KING 2 open cluster.
Currently, I have updated the WCS using
CCMAP but i still find that the images
don't have the final corrected WCS. Can
you please help out ?
http://iraf.noao.edu/projects/c... 		 
641 0
By: AAKANKSHA
06/26/2019 08:09PM
Normal Topic
imalign errorsStarted by:elizevin, 11/09/2018 12:07PM
Hello.
I tried to align some images for
stacking, but I can't seem to get it
right.
I have three images I'd like to align,
it's raw .fit data (data is not yet
reduced, I just wanted to test
stacking). I made list_B with four
images (first is my refere... 		 
653 0
By: elizevin
11/09/2018 12:07PM
Normal Topic
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
... 		 
660 1
By: dofey
10/06/2018 04:27AM
Normal Topic
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... 		 
660 1
By: fitz
06/17/2016 08:48PM
Normal Topic
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 		 
662 1
By: fitz
10/21/2015 04:01PM
Normal Topic
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-,... 		 
672 1
By: fitz
05/29/2018 04:21PM
Normal Topic
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... 		 
672 0
By: astrorafael
12/15/2015 03:32PM
Normal Topic
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 		 
674 1
By: fitz
09/18/2015 11:12PM
Normal Topic
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... 		 
676 0
By: nippur_1967
07/03/2014 06:03PM
Normal Topic
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. 		 
677 1
By: fitz
11/11/2013 05:04PM
Normal Topic
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... 		 
684 0
By: xjs0118
11/20/2018 07:04PM
Normal Topic
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 ... 		 
688 0
By: marco.03
07/10/2014 06:00PM
Normal Topic
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... 		 
692 1
By: fitz
05/09/2017 04:35PM
Normal Topic
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... 		 
694 0
By: jcadien1
07/21/2015 03:32PM
Normal Topic
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 		 
695 1
By: fitz
09/29/2015 05:04PM
Normal Topic
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]
... 		 
697 1
By: fitz
09/30/2015 10:34PM
Normal Topic
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... 		 
699 2
By: mdurre
01/15/2014 04:41AM
Normal Topic
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... 		 
704 0
By: Diego Farías
12/17/2015 02:46AM
Normal Topic
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... 		 
706 0
By: Amanpreet
10/26/2017 06:54PM
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