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Question about GFREDUCEStarted by:constant, 03/20/2017 12:11AM
My mate met a error about GFREDUCE
task.
Here is the description from him.
Hope anyone could help him. Appreciate!

if I use gfreduce,I will get "GLOGINIT
ERROR:101 Unable to access file
/home/chen0/ti/star.log.."
The version of iraf in Ureka is 2....

2394

By: constant

04/23/2017 02:44AM

Unable to run cl scriptsStarted by:nialld, 04/10/2017 04:30PM
Hi, I've hit a bit of a problem with
IRAF scripts. I previously wrote a bunch
of .cl scripts (i.e. lists of IRAF
commands). These used to run by typing

[code]cl < test.cl[/code]

However now cl will start, list the
basic packages and then just hang...

1340

By: nialld

04/13/2017 01:37PM

Problems with identify/reidentifyStarted by:grayro, 04/06/2017 03:46PM
Hi, I am writing an IRAF script for an
observational spectroscopy course that I
am teaching which takes a previous
wavelength solution and applies it to
comparison spectra for stars taken that
night. I have written and used scripts
like this many time...

896

By: grayro

04/07/2017 12:30AM

Syntax Error on procedure callStarted by:LukeD, 03/02/2017 07:51AM
I am trying to create my first procedure
script by creating a .cl script, placing
it in /home/iraf/listcreate.cl and then
running
task listcreate =
/home/iraf/listcreate.cl

but whenever I try to run it by typing
'listcreate' I get an error:
**: pr...

1166

By: fitz

03/08/2017 05:15PM

Cannot run epar setinstrument and oth...Started by:orionist, 02/25/2017 08:05AM
I just install IRAF using mkiraf.

when I tried to run epar setinstrument,
I got the error

ERROR: task `setinstrument' not found
called as: `eparam
(setinstrument)'

and the same as epar with other command
like epar ccdproc, epar zerocombi...

1961

By: fitz

02/27/2017 09:17PM

receiving a strange "Cannot open file...Started by:cac5280, 02/21/2017 06:30PM
I am attempting to run a pipeline
written in IRAF, and I keep receiving an
error referencing a tmp directory. I'm
not sure why I am receiving this error,
or how to ameliorate it. The full error
is below:

ERROR: Cannot open file (/tmp//.IMT501)
"...

3579

By: cac5280

02/21/2017 08:49PM

mscred.xtcoeff, divide by zero errorStarted by:jstottsj, 08/07/2008 11:14AM
Hi,

Every time I run mscred.xtcoeff it
returns a floating-point error (divide
by zero). The other parts of the mscred
package like ccdproc and mscdisplay are
perfectly happy with these files, so
there's no obvious error in the input
files.

I haven't ...

3220

By: prasadh

02/16/2017 07:42AM

change background in display?Started by:seitzer, 01/27/2017 10:21PM
When I load an image into ds9 from iraf
with display, the background (area
larger than the image) is always white.
This does not depend on the ds9 invert
colormap setting nor 'background
color/Blank/Inf/NAN preferences.

Is there a way to force the b...

2108

By: fitz

01/27/2017 10:56PM

IRAF and XGterm on DebianStarted by:fitz, 01/23/2017 04:46PM
[b][color=darkred][Moderator's Note:
Forwarded from story
submission][/color][/b]

Hi, I am trying to install IRAF on a
64-bit Debian computer. IRAF seems to
have installed fine using the
instructions on
http://www.astronomy.ohio-state.edu/~khan/ir...

1787

By: fitz

01/23/2017 04:48PM

String manipulation in IRAFStarted by:grayro, 01/20/2017 09:58PM
Hi, I am having problems with some RA
and DEC keywords in fxcor. fxcor wants
the values to be delimited with colons,
such as "12:30:56", but I have some
spectra which have spaces instead: "12
30 56" and fxcor chokes on those. I
want to be able to edi...

1170

By: fitz

01/20/2017 10:37PM

Error when running command cl Started by:Maria, 12/09/2016 05:03PM
I have just install IRAF in my computer
using the Cygwin but when I try to run
the command cl to open IRAF th following
error appears:

os.zgtenv: cannot open
`/usr/include/iraf.h'
task `cl' has no param file
Fatal startup error. CL dies.

I have...

1786

By: fitz

12/09/2016 07:46PM

agetcat on usnob1@noao gives not 404 ...Started by:Santiago, 12/08/2016 01:45PM
Hi, i'm trying to solve some plates with
agetcat, ccmap, etc, and i cannot
download the usnob1@noao region, i get
an html 404 not found page. Was this
task deprecated or some? Maybe my way is
not fancy, anyways to plate solve with
other iraf package? My...

908

By: fitz

12/08/2016 04:23PM

Rebin to simple wcs using output from...Started by:dmw8f, 11/29/2016 11:00PM
We have used ccmap to create a database
file (.db) containing 3rd order
polynomial coefficients to link CCD
pixel coordinates to sky RA DEC
coordinates using GAIA stars. We now
want to use this database file to rebin
the image into a linear image with s...

1348

By: valdes

12/06/2016 11:33PM

Error when running command clStarted by:Maria, 12/02/2016 10:00AM
I have installed Iraf in Cygwin but when
I try to run the cl command this error
appears:

os.zgtenv: cannot open
`/usr/include/iraf.h'
task `cl' has no param file
Fatal startup error. CL dies.

1245

By: fitz

12/06/2016 09:11AM

IRAF ExpressionsStarted by:blackhole612, 11/14/2016 08:02PM
Hello,

I am translating some IRAF code to
another programming language, but I
can't figure out this snippet of code
below.

n_expression="z"//n_i//"*(nclus=="//n_i//")+1000.*(nclus!="//n_i//")"
print(n_expression, >tmpexp)
tcalc(tmpall,"z"//n...

872

By: fitz

11/14/2016 08:52PM

Imexamine: Started by:Gaba_p, 11/03/2016 05:22PM
The output of
[url=http://stsdas.stsci.edu/cgi-bin/gethelp.cgi?imexamine]imexamine[/url]'s
'[b]a[/b]' (performed over a star)
includes the "mean background" in the
column named 'SKY'.

What is the difference with the
'[b]m[/b]' column 'STDDEV' perform...

1033

By: fitz

11/14/2016 05:42PM

fields task keeps asking Started by:Gaba_p, 11/04/2016 09:35PM
I can't seem to be able to run the
'fields' task without it asking me to
input the 'Fields to extract'.

This happens even with mode='h'.

Example:

ecl> fields.mode='h'
ecl> fields.fields='1,2'
ecl> fields.lines='1'
ecl> fields.files='test.dat...

764

By: fitz

11/14/2016 05:20PM

ERROR: integer divide by zeroStarted by:mnmaulana, 11/06/2016 06:43AM
Hi all,
i'm new to iraf. i'm trying to display
1-D image i made but when i use display
command i get this error "ERROR: integer
divide by zero", anybody know why i get
this error and how to fix it?

thanks,
mnmaulana

1039

By: fitz

11/14/2016 05:17PM

directory names with spacesStarted by:duvall, 10/18/2016 12:45PM
If I have a directory name with spaces,
I can't seem to cd to it:

(in a shell)
mkdir "test 2"
ls
test 2
cd "test 2"
(ok)

(in iraf)
dir
test 2
cd "test 2"
ERROR: Cannot change directory to 'test
2'
called as ...

This seems to happen on...

1028

By: fitz

10/18/2016 12:53PM

OSX SierraStarted by:fitz, 09/23/2016 05:23AM

FWIW, it appears that there are NO new
issues to report wrt IRAF, X11IRAF or
DS9 under the new OSX 'Sierra' release.
It is possible that if upgrading from
Yosemite (or earlier versions os OSX)
some of the problems experienced with
the El Capitan upgr...

1729

By: fitz

10/12/2016 09:32PM

iraf online task helpStarted by:harvester, 10/12/2016 03:12PM
hello, just wanted to ask about iraf
online help (html formatted). they
disappeared from both websites
iraf.noao.edu and iraf.net at some point
and i found them very useful, because of
their much better readability than
classic help and xhelp. is it pea...

862

By: harvester

10/12/2016 04:53PM

tfitlin in IRAF helpStarted by:blackhole612, 09/15/2016 09:00AM
Hello,

I am working on converting some IRAF
scripts to Python, and I came across
this command that I couldn't find in the
docs, Google search, or on this forum.

What does the command tfitlin do
exactly? Or is there documentation on it
somewhere? ...

980

By: fitz

09/15/2016 05:41PM

Splot background colorStarted by:dmag, 09/14/2016 04:13PM
Hi,
i know that it is probably a stupid
question but i am not able to find a
solution.
How can i invert the
background-foreground color in the IRAF
plot windows?
Splot, specplot, identify, continuum..
every task show a white plot on black
backgroun...

2330

By: fitz

09/14/2016 06:08PM

FXF warning and error with imcopy, im...Started by:grayro, 03/15/2014 08:39PM
Hi,

I am modifying a photometry script and
have run into the following problem.
The script attempts to combine images
with the format thd*.fit using
imcombine. The combined image is first
named TMP, and then later copied to a
specific name containe...

5227

By: gworthey

09/08/2016 06:43PM

Image registration and trimStarted by:mjmazur, 08/21/2016 10:44PM
Hi.

I'm looking for a way to automatically
register images by their WCS and then
trim them back to the largest area of
common overlap.

Right now, I'm doing this with SWarp and
saving the intermediate images. The
problem with this is that, in order...

1182

By: mjmazur

08/21/2016 10:44PM

REFSPEC IssuesStarted by:cac5280, 08/06/2016 03:06PM
Hello, there.

I am having some issues with REFSPEC.
When I try to run it, I keep receiving
the error "wrong aperture". I know the
reference spectra are
identified/reidentified, and I know that
they correspond to the target spectra
because I extract...

1076

By: cac5280

08/06/2016 03:06PM

magpar unitsStarted by:michgradstudent, 08/03/2016 07:07PM
Hello!

I'm using ELLIPSE package to create
radial profiles of different galaxies
from HST ACS images.
I'm slightly confused by the units for
"mag0" and "refer" in the task MAGPAR.

The magpar help page notes that the
magnitude it will use for ELLI...

1357

By: fitz

08/04/2016 03:08AM

ccdproc not editing parameters in bet...Started by:tasso1db, 07/28/2016 04:10PM
Hello,

I'm trying to make a script that
automates my reduction process for ccd
images. However in my script ccdproc
doesn't seem to want to change my
parameters in between the steps. For
instance after the first step where the
bias is made, I want th...

944

By: tasso1db

07/28/2016 04:10PM

Geomap taking too long to runStarted by:NovaGirl, 07/28/2016 12:03AM
Hi everyone,

I am a complete beginner to IRAF, and I
am trying to align some fits files using
geomap and geotran.

I am running geomap right now, but it
has been very slow until now. The output
looks something like:

geomap @CoordList.txt datab...

1030

By: NovaGirl

07/28/2016 03:19AM

imalign trouble Started by:Liz, 07/24/2016 01:23AM
So I am trying to align 17 files after
making all the corrections. I have a txt
file with the reference star coordinates
(I am only aligning with one star) that
looks like
416.3 230.5
and a txt file with all the shifts
starting with the reference f...

1183

By: fitz

07/24/2016 04:22AM

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