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Last Post

No command line for xgtermStarted by:JoshuaJoseph, 04/30/2016 04:40AM
I have installed IRAF on Mac (I needed
to disable the SIP firstly to allow
mkiraf to install the iraf.h file in
/usr/include/) and when I open an xgterm
and 'ecl' to open IRAF, I get this
window:

[img]/Users/joshuajd/Desktop/iraf_screenshot[/img]
...

821

By: fitz

05/05/2016 10:21PM

login.clStarted by:Arthur Babcock, 04/18/2016 05:03PM
I have been installing 64-bit 2.16 in
64-bit Ubuntu 14.04, and have had a few
problems. I appear to have successfully
installed xgterm.STATIC.

1. I'm not sure this is a problem, but
I'm not sure ecl is loading login.cl. If
I run mkiraf in my home dir...

2587

By: Arthur Babcock

05/06/2016 12:33AM

Overwriting issueStarted by:Jean-Gab, 05/03/2016 05:35PM
Hi,

I'm using IRAF 2.16 on OS X Yosemite,
and I've got an issue when I try to
overwrite on fits already existing.
(ERROR: Cannot open file
(/tmp///.IMT504)). I've checked on the
forum and haven't found any solution yet
(which was working).

My prob...

1399

By: Jean-Gab

05/09/2016 07:42AM

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...

737

By: fitz

05/11/2016 05:11PM

xgterm/iraftermStarted by:sastanford, 05/13/2016 06:36AM
When running interactive tasks such as
apall or identify, most (but not all) of
the keystroke commands do not work
within the irafterm window. For
example, if I want to resize the display
area using "w" and then "e" the graphics
terminal recognizes the...

1125

By: sastanford

05/13/2016 06:36AM

MSCSETWCSStarted by:dopitz, 05/26/2016 07:05AM
Hello

I am trying to apply a WCS Database
(created by someone else) to other
exposures. I am doing:

mscred

for(i=1;i

885

By: dopitz

05/26/2016 07:05AM

Can't open files on mounted disksStarted by:dagorym, 06/03/2016 11:28PM
I have a computer that has 3 drives in
it. The first contains the operating
system and all it's associated
directories. The second two are mounted
as data drives off the root (/)
directory.

Iraf works just fine on files on the
system drive but when...

1131

By: fitz

06/04/2016 12:20AM

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...

662

By: fitz

06/17/2016 08:48PM

broken imdelete Started by:kanaan, 06/19/2016 03:34PM
hi Guys,

I am sure this must be really stupid, I
have been fighting this since yesterday
though.

I cannot imdelete files in my system. I
was just using !rm instead, but within
mscred some of the scripts run imdelete
then I cannot circumvent the ...

838

By: kanaan

06/20/2016 12:00PM

GEOTRAN error?Started by:zech2453, 06/16/2016 06:53PM
When executing GEOTRAN after generating
the database file from GEOMAP, it does
visibly nothing to the input image as
seen from the output image. Only when I
manually key in the values in the
database file, replacing the "INDEF"
keywords in the GEOTRAN U...

1647

By: valdes

06/20/2016 08:16PM

imstack for different galaxiesStarted by:michgradstudent, 06/30/2016 04:30PM
I want to stack 50 different galaxies on
top of each other, each having different
central coordinates and in very
different parts of the sky.
I'm trying to calculate the cumulative
light from all of them, and stacking is
a nice way to do this.

Is th...

825

By: fitz

07/09/2016 03:36AM

Xgterm cannot be executed on MAC OS X...Started by:ongole.geeth, 06/09/2016 08:05AM
I have installed iraf on my mac os x el
capitan and have installed x11 according
to the procedure.But when i try to
execute the xgterm & command it
shows an error saying " cannot execute
binary file".Kindly solve this.
Thanks in advance .

1921

By: ongole.geeth

07/18/2016 10:58AM

Help with a simple zerocombine scriptStarted by:tasso1db, 07/22/2016 05:38PM
Hello,

I am trying to write a very simple
reduction pipeline for my schools
observatory. However I am getting the
following error: "Too many positional
arguments for 'zerocombine'" on line 12.
I'm slightly confused as to how I could
have too many ar...

794

By: fitz

07/22/2016 05:45PM

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...

1186

By: fitz

07/24/2016 04:22AM

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...

1032

By: NovaGirl

07/28/2016 03:19AM

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...

952

By: tasso1db

07/28/2016 04:10PM

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...

1364

By: fitz

08/04/2016 03:08AM

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...

1083

By: cac5280

08/06/2016 03:06PM

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...

1186

By: mjmazur

08/21/2016 10:44PM

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...

5233

By: gworthey

09/08/2016 06:43PM

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...

2339

By: fitz

09/14/2016 06:08PM

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? ...

982

By: fitz

09/15/2016 05:41PM

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...

865

By: harvester

10/12/2016 04:53PM

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...

1731

By: fitz

10/12/2016 09:32PM

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...

1036

By: fitz

10/18/2016 12:53PM

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

1042

By: fitz

11/14/2016 05:17PM

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...

769

By: fitz

11/14/2016 05:20PM

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...

1035

By: fitz

11/14/2016 05:42PM

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...

876

By: fitz

11/14/2016 08:52PM

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.

1253

By: fitz

12/06/2016 09:11AM

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