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task parameter string problemsStarted by:dougmink, 02/22/2007 10:16PM
Is there a maximum length for strings as
parameter values in tasks?
We have a list of file names which seems
to be too long for epar, dpar, and lpar.
The value can be set on the command
line, and the task uses all of the files
on the list, but when you ...

3797

By: fitz

02/22/2007 10:16PM

Task ls stopped workingStarted by:Gaba_p, 12/15/2008 05:20PM
Hi,

this is really strange, the task "ls"
(to list files and directories) stopped
working. It does nothing, no error, just
nothing... The "dir" command works, but
it's not the same since it doesn't
display the full name of files (i.e, a
file with a lon...

9215

By: Gaba_p

12/15/2008 05:20PM

Task GAUSS: sigma parameterStarted by:Acrobat, 03/08/2007 01:21PM
Hi all,

I have to use the task GAUSS to perform
a convolution. My question is: how can I
pass from my instrumental resolution
(expressed as lambda/Dlambda or as
velocity) to the parameter sigma for the
gaussian, in pixels?

Many thanks in advance.

Che...

5430

By: Acrobat

03/08/2007 01:21PM

Task AsttimeStarted by:astro, 02/10/2016 10:49PM
Hi,

I'm using astutil.asttime to calculate
epoch and julian day of my data from the
local dates and times. I got the results
in the form
EPOCH JD LMST
1987.82398 2447097.7083 0:01:35.8
I need more digits after the decimal
point f...

1179

By: fitz

02/11/2016 06:38AM

taciturn ccdprocStarted by:azangari, 01/27/2009 08:02PM
When I run ccdproc, I usually get some
sort of output (eg zero level correction
frame is zero.fits) during processing.
I've loaded IRAF on a few other machines
recently (the latest Scisoft, OSX10.5),
and the familiar output does not appear
(but the ima...

2029

By: azangari

01/27/2009 08:02PM

Tables external PackageStarted by:lpetras, 08/12/2006 04:02PM
I've just installed the CYGWIN version
of IRAF and the base system and without
any external packages defined seems to
run ok.

Then tried to get the TABLES external
package installed (from the binary
distribution from IRAF,NET) but I get an
error saying...

4874

By: lpetras

08/12/2006 04:02PM

Systematically growing daophot magnit...Started by:lmt, 10/27/2009 08:02PM
In daophot photometry of crowded fields,
during the iteration to remove neighbors
that blend PSF stars that cycles
psf-> nstar-> substar-> psf,
where the photometry input file to psf
is the substar output file with
unsubtracted PSF stars, nstar...

1831

By: lmt

10/27/2009 08:02PM

Syntax error using 'files' in a proce...Started by:Gaba_p, 03/11/2009 08:46PM
Hello again,

I'm trying this:

procedure test (arguments)

declaration of parameters

begin

declaration of variables

files *.fit > fitfile
...more script commands

end

and I get a 'Syntax error' on the
'files' line every time. Can I u...

2305

By: Gaba_p

03/11/2009 08:46PM

suggestion for minor fxcor upgrade to...Started by:johnhenry, 07/11/2007 04:01PM
dear IRAF.net,

i would like to use the CCF that
rv.fxcor produces, for further analysis
of my echelle data.
[When using fxcor with delta functions
as a template the CCF is a convenient
way of combining the information of all
line profiles into one sing...

2714

By: johnhenry

07/11/2007 04:01PM

Subtraction of stars with saturated p...Started by:DShields, 03/16/2011 10:43PM
I am attempting to remove stars from an
image using the DAOPHOT package.
Specifically, I have stars with
saturated pixels overlaying the image of
a galaxy. I want the galaxy to remain
but the stars subtracted out.

My analysis procedure includes the f...

1974

By: valdes

03/16/2011 10:43PM

subtract 2 imagesStarted by:milena, 10/06/2010 03:24PM
hey,

I'm not very experienced with IRAF... I
just want to subtract 2 images. It has
nothing to do with bias or dark frame
subtraction...
To divide 2 images I can use imutil
-> imdivide. I look for a similar
command to subtract 2 images. Can anyone
h...

2973

By: milena

10/06/2010 03:24PM

Subscripts in axes labelsStarted by:, 06/06/2006 02:03PM
Hi

Can you give me some information on how
to do sub/superscripts within axes
labels using splot? I have spectra where
I have fitted emission lines within
splot and need to produce plots of the
data with the fit overplotted. I know to
change the labels...

3018

By: fitz

06/06/2006 02:03PM

Subdivide pixels taskStarted by:jcely, 10/24/2009 01:10AM
is there a task that can subdivide
pixels? No interpolation or fancy
stuff-just 1 pixel into 4, or 1 into 2
by dimensions, whatever there is

Thanks

1987

By: jcely

10/24/2009 01:10AM

StuckStarted by:nice2bme, 04/11/2006 12:13AM
Hi,

I'm using IRAF to calibrate images taken
on Nov 12, 2005. These images were taken
using a 24" Telescope and for the scope
we have to have an action called as
'peer-flip'.

Pre-flip the data I have is highly
tilted from top left to bottom right,
th...

2712

By: fitz

04/11/2006 12:13AM

stsdas.analysis.isophote ellipse task...Started by:ramirodsl, 02/27/2009 10:02PM
I'm fitting ellipses to images of
galaxies using a bad pixel mask (dqf
parameter).

I know the bad pixels are not taken into
account for the geometry fitting.

My questions are:

1- I want to know if the reported fluxes
in the output table include or no...

2105

By: fitz

02/27/2009 10:02PM

stsdas&tables on ubuntu 64bit wit...Started by:rocker_milan, 08/29/2009 05:45PM
hey, it's me again.. i hope you don't
mind if i asked some question again..:)
i have already installed the iraf,
stsdas, and tables on ubuntu 9.04 64bit.
and it appear succesfully, because
there's no error message that i get. the
command is just like t...

4798

By: fitz

08/29/2009 05:45PM

stsdas error: out of memoryStarted by:Arp, 06/25/2009 08:49PM
Hi!

Im trying to filter a relatively big
mosaic, something around 16000 x 12000
pixels. When I start the adaptive task,
it says "PANIC in
`/iraf/extern/stsdas/bin.suse/x_restore.e':
Memory has been corrupted
ERROR: Out of memory"

Im running on a Intel...

2870

By: fitz

06/25/2009 08:49PM

string substitutionsStarted by:Nostril585129, 12/12/2008 04:03AM
So I am trying to take a piece of text
out of a variable, but seem to be having
trouble. I call for a variable n from a
list using fscan, which comes out in the
form

20080519.0091.fits

I then try and insert it into XYXYMATCH
in this way:
[code:1:90f9e...

1387

By: fitz

12/12/2008 04:03AM

strfits - segmentation violationStarted by:Wendy Roberts, 01/09/2006 08:20PM
The following segmentation violation
occurs under both Solaris and Linux
(IRAF v12.2.2). Can anyone shed some
light?

ymir% cd ~/iraf
ymir% setiraf
ymir% cl
Word too long
ymir% csh -f `which cl`
cl> cd
/data/mimir0/gaetz/data/HST/t1
cl&...

3925

By: fitz

01/09/2006 08:20PM

strange segmentation faults with task...Started by:ncaon, 08/06/2007 05:05PM
Hi,
I'm experiencing strange problems with
the task transform. It aborts with a
segmentation fault with certain values
of the y1 parameter (dispersion is along
the Y axis). The error seems to depend
exclusively on setting ylog=yes, and is
triggered by e...

3764

By: valdes

08/06/2007 05:05PM

Strange problem with guiappsStarted by:esemenko, 10/04/2007 01:02PM
Hello!
Sometimes I use spectool from guiapps.
My main workstation is operated on
Debian and Iraf (2.13beta) works fine.
But when I run spectool application
menues is inactive, i.e. I can't select
any entry (for example, normalize by
continuum). Video ca...

2862

By: esemenko

10/04/2007 01:02PM

Strange display behaviorStarted by:ewehner, 02/18/2008 05:58PM
Hi,

I'm having some difficulty displaying
fits files properly from iraf to ds9.

For various reasons I had to reinstall
leopard on my mac this weekend. I
updated to 10.5.2 then did the latest
X11 patch (2.1.4). I then put on
Scisoft 2007.11.1 and dra...

2491

By: ewehner

02/18/2008 05:58PM

Strange behaviour in procedure script?Started by:Gaba_p, 03/11/2009 05:27PM
Hi,
I'm writing a procedure script that
looks like this:

procedure test1 (query parameters)

#declaration of parameters
real fwhm {prompt = "Ingrese el valor
de FWHM"}

begin

#declaration of variables
string variable1

#if structure
if (xxxxx...

2023

By: Gaba_p

03/11/2009 05:27PM

Stellar grouping issuesStarted by:rachel, 07/18/2006 06:55PM
I was wondering how PSF selects what
stars it includes in a group and if
there was any way this could be changed.
The field I am working on contains a
density of stars such that allstar
doesn't seem to be able to subtract
them. Some of the stars only ha...

2738

By: massey

07/18/2006 06:55PM

starlist and mkobjectsStarted by:iraf_user, 05/16/2008 04:06AM
Hello,

I am trying to use starlist and
mkobjects (located in noao>artdata)
and I have
a little trouble because I could not
find more info except the help pages
which
did not help my questions.

I am trying to derive the completeness
limit for a set...

3674

By: iraf_user

05/16/2008 04:06AM

starfindStarted by:dbrenner, 06/09/2009 06:39PM
Hi there,

Does anyone know how to extract the
xcenter and ycenter data directly from
starfind without reading the file?

Thanks
Doug

2231

By: fitz

06/09/2009 06:39PM

standard task: ERROR: Cannot convert ...Started by:ncaon, 10/05/2007 02:22PM
Hi,
we are trying to create the sensitivity
function using the Iraf task "standard"
in noao.imred.specred.

However, we get the error:
ERROR: Cannot convert between selected
units

The spectrum seems to be correctly
calibrated in wavelength (nanometers ...

3995

By: ncaon

10/05/2007 02:22PM

standard task...Started by:Jason Quinn, 05/05/2011 10:28PM
When running the standard task in
command mode (I use the kpnoslit one),
if "interact=yes" and the output is
rather ugly because it's missing
newlines in key spots.

For instance, with an image with two
apertures,

[code:1:7ab90b5beb]standard
("...

1909

By: valdes

05/05/2011 10:28PM

Standard star catalogsStarted by:FSBoyden, 03/04/2008 10:44AM
Hi all

I created a standard star catalog using
"nedit" with the same structure as the
landolt catalogs, with all the
associated files. The problem is that
when I use it to fit data using
fitparams, fitparams gives me a
unidentified source error.

Q. Mu...

2253

By: FSBoyden

03/04/2008 10:44AM

Standard Star CalibrationStarted by:fitz, 11/25/2014 07:29AM

[color=red][Moderator's Note: Forwarded
on behalf of user][/color]

After weeks of intensive research I
finally managed to obtain a CMD of the
globular cluster M53 using B,V filters.
(See Attachment)
The magnitudes here are of course the
instrumen...

3071

By: fitz

11/25/2014 07:30AM

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