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Begginers Documents.Started by:ndouglas, 03/03/2010 03:56PM
I think that it is time for a new IRAF
primer. Jeanette Barnes has made some
good documents for various specific
groups and the 1993 Beginner's Guide is
fine.
But I have noticed within my institute
that we need a real IRAF-for Dummys
for those who have ...

1294

By: fitz

03/03/2010 03:56PM

isochronesStarted by:AndrewS, 05/22/2011 08:23PM
Is there a task in IRAF to fit
isochrones..?

1291

By: fitz

05/22/2011 08:23PM

running multiple scriptsStarted by:dbrenner, 02/12/2010 05:04PM
I once tried to running two scripts at
the same time and failed. It may have
been my fault but with it seems that
iraf might have trouble doing that. Yes?

1291

By: dbrenner

02/12/2010 05:04PM

IRAF documentationStarted by:Jason Quinn, 11/30/2010 08:10PM
Do the latex sources (and needed
figures) for the important IRAF manuals
still exist in a way that can re-produce
the user's guides? In particular, I am
referring to the beginner docs like "A
User's Guide to Reducing Slit Spectra
with IRAF", "A User's G...

1282

By: fitz

11/30/2010 08:10PM

Timing analysis softwareStarted by:FSBoyden, 04/22/2010 01:19PM
Hello.

Been a while since I posted. Research!

I need to do some timing analysis on
photometry (using IRAF) results
(light-curves). The recommended software
is XRONOS, but the input files needs to
be specific FITS format data files.

Q! Is it possible,...

1282

By: fitz

04/22/2010 01:19PM

crmedianStarted by:dbrenner, 01/09/2012 04:47PM
Should this work when using crmedian on
the command line?
crmedian( input = file, output =
file//"[0,overwrite]" )

thanks

1280

By: fitz

01/09/2012 04:47PM

imexpr problemStarted by:rjvo, 01/25/2011 08:26AM
I do a very simple command in IRAF
2.15[code:1:681b123da6]imdel f; imexpr
"1.0" f dim="1024,1"
imstat f
[/code:1:681b123da6]gives the
result[code:1:681b123da6]IMAGE NPIX
MEAN STDDEV MIN MAX
f 1024 9...

1277

By: fitz

01/25/2011 08:26AM

fitcoords changes in IRAF v2.15Started by:emma, 12/20/2011 05:15PM
Hi Mike,

I'm currently testing IRAF v2.15 and I
was hoping you could confirm that the
minimum value for the fitcoords.xorder
and fitcoords.yorder parameters are now
equal to 2? Previously, with IRAF
v2.14.1, I had xorder set to 1 and
fitcoords didn't c...

1274

By: emma

12/20/2011 05:15PM

How long it takes to work on FITS imagesStarted by:irafn00b, 05/31/2009 07:06PM
On average, how long does it take to do
processing, wavelength calibration, and
rectification of a FITS file?

1274

By: fitz

05/31/2009 07:06PM

command-line synatx issue with heditStarted by:bgandersson, 12/12/2013 12:04AM
Hi,

I'm trying to do the comparison spectrum
assignments for a bunch of observations
and, if I do it through the parameter
editor (i.e. $epar hedit - etc.) or if I
do
$hedit object_file.fits REFSPEC1 add+
ver- show+
then it works fine (in the la...

1272

By: fitz

12/12/2013 04:11PM

Display OverlayStarted by:CosmicLettuce, 03/27/2016 12:40AM
I'm using DS9 and the 'display' task to
display some large (4096x4096) solar
images and an overlay that marks
particular features.

When I do this:

cl> displ image.fits 1
overlay="image.plot" ocolor="red" zs-
zr+ fi+

Where 'image.plot' is a list...

1269

By: CosmicLettuce

03/27/2016 02:08AM

bug in blkrep?Started by:Arp, 03/04/2010 10:20AM
Hi!

Is there a bug in blkrep?

Because, I have a fits file with the
dimension 512x1, its one line.
If I want to enlarge it to 512x512 I
would use blkrep and use 512 for
dimension 2. but this simply does
nothing... the resulting image has the
same dimen...

1263

By: fitz

03/04/2010 10:20AM

support requestStarted by:massimo55, 04/04/2010 06:53PM
Dear Sir,

I have some images in MEF fits format
(old JKT telescope images)
that I transformed in individual fit
images by wfits command.

After flat field calibrations the pixels
value range are from
positive to negative (the pixels are
�...

1257

By: massimo55

04/04/2010 06:53PM

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

ctio.bitstat does not seem to work in...Started by:johnf5007, 04/22/2015 08:43PM
Hello IRAF gods,

The very old (but handy) bitstat command
seems to not be installed properly on my
IRAF installation, though other tasks in
the ctio package do work:

ecl> ctio
apropos compression.
fft1d gki2cad imso...

1252

By: johnf5007

04/23/2015 02:39PM

light curve generationStarted by:fks, 06/28/2013 09:40AM
Hi
Can you please tell me what task can i
use for light curve generation from flat
fielded fits files? Earlier i used
Vaphot. Is there any task similar to
vaphot?

1252

By: fitz

06/28/2013 09:40AM

memory corruption in xyxymatchStarted by:, 07/05/2010 08:03AM
A colleague has stumbled upon a bug in
xyxymatch. When nrefstars==3, nrmaxtri
(which is used in computing the
allocation size for reftri) ends up
being equal to 1. Later, rg_tvote()
(called via rg_match()) assigns values
to reftri(2,RG_MATCH) and reftri...

1249

By: fitz

07/05/2010 08:03AM

creating simple test imagesStarted by:AndrewS, 03/14/2012 09:57AM
Hello

I want to create simple "test images" (
ie.completely artificial images where I
define the value of every pixel) to see
if the functions I am attempting to
apply to an image are working correctly.
So these test images would likely have a
very si...

1248

By: AndrewS

03/14/2012 09:57AM

Multiple IRAF/DS9 users on single mac...Started by:npaust, 03/06/2015 02:07AM
I have my students learning IRAF to do
some little projects and I'm running
into an odd problem. They're all SSHing
into a single workstation (with
individual accounts) and then displaying
the xgterm/ds9/etc windows on their own
Mac laptops. To get ds...

1240

By: npaust

03/06/2015 01:22PM

improving the calibration accruacy....Started by:amalmirando, 03/09/2010 07:16AM
What methods can be used to increase the
accuracy of the calibrated spectrum?

1240

By: amalmirando

03/09/2010 07:16AM

im3dtran problemStarted by:duvall, 07/08/2011 04:55PM
I have an image of type int
npts3[7,4,1,224]. I wanted to rearrange
the axes and get rid of the length 1
axis, so I executed
im3dtran npts3[*,*,1,*] npts3_fix 3 1 2
But then I found some problem with the
result:
listp npts3[1,3,1,1:6]
1. 77360.
2. 6...

1230

By: fitz

07/08/2011 04:55PM

literal ^ in stringsStarted by:Jason Quinn, 10/25/2012 04:43AM
I've noticed a issue with literal carets
in strings. This arose because I was
trying to use the match task in a
script. I wanted to do a command like

[code:1:1e48f524e3]match "^1"
myfile[/code:1:1e48f524e3]

to list all lines that begin with ...

1219

By: fitz

10/25/2012 04:43AM

problems running loop_drizStarted by:Francesca, 07/19/2011 03:31PM
Dear user support,

I am trying to run the loop_driz task on
non-HST images.
I get the following error:

ERROR: Attempt to access undefined local
variable `gcount'.

"if (gcount == 4) {"
line 184: dither$loop_driz.cl
called as: `loop_driz (...

1206

By: fitz

07/19/2011 03:31PM

List error on MacOSX 10.9.5 under V2.16Started by:ltacconi, 07/16/2015 12:39PM
I'm having weird problems (that I've
never seen before) when I'm now trying
to use IRAF (V2.16) on my iMac running
Mac OS X 10.9.5. Specifically, I'm
using the task 'cosmicrays' (which I've
used in the past a zillion times). I
haven't done further tes...

1203

By: ltacconi

07/17/2015 01:09PM

SDO DataStarted by:CosmicLettuce, 03/10/2016 01:44AM
Hello!

Do you have any suggestions on how to
deal with these compressed FITS tables
from SDO? I'd like to convert them to
regular uncompressed FITS images.

Here are some examples:

http://jsoc.stanford.edu/data/hmi/fits/2016/03/09/

Much Than...

1201

By: CosmicLettuce

03/10/2016 02:22AM

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...

1200

By: fitz

08/01/2014 04:58AM

seepsf error: Image header parameter ...Started by:hbarker, 07/26/2017 03:13PM
Hi all,

I'm trying to view the psf I'm creating
with daophot, as I can't seem to find a
good fit, but when I use "seepsf" I get
the error ERROR: Image header parameter
not found (FUNCTION).

I've tried set function=gauss (and tried
function=auto) ...

1190

By: hbarker

07/26/2017 03:13PM

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...

1187

By: mjmazur

08/21/2016 10:44PM

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...

1187

By: fitz

07/24/2016 04:22AM

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...

1186

By: amagaz

10/22/2014 07:40AM

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