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SPLOT overwrite problemStarted by:mafsar, 05/18/2016 08:15PM
Hi,
I have a problem with SPLOT task. When I
tried to do some work using splot I
realized
something has changed. I used splot's
continuum normalization
option for an echelle spectrum. When I
wanted to overwrite the changes that I
made in each order ...

1307

By: valdes

05/27/2016 06:25PM

splot signal to noiseStarted by:milena, 05/18/2011 04:34PM
hey,

I noticed that it is possible to get a
wavelength dependent plot of the signal
to noise if I have a spectrum that is
extracted with apall and wavelength
calibrated. To get it I have to plot
image band 4 with splot. If I do it with
my spectra, it d...

1809

By: valdes

05/18/2011 04:34PM

splot with a wavelength array instead...Started by:keflavich, 12/15/2008 10:51AM
Hi, I'd like to use IRAF to plot the
spectrum extracted from the SPEXTOOL
package. It extracts data in a FITS
format where there are 3 arrays with the
same number of elements: a wavelength
array, a data array, and a variance
array.

How can I plot this...

2442

By: keflavich

12/15/2008 10:51AM

splot: deblending with constant redshiftStarted by:chewbacca, 07/27/2014 11:47AM
Hi,

I am using splot to fit doppler shift in
absorption lines that are very weak, so
I would like to take advantage of the
'single' option in the deblending
routine.
However, my lines are separated by ~150
nm so Delta(lambda) can vary quite a lot
be...

840

By: chewbacca

07/28/2014 07:44AM

splot: save in a fileStarted by:ebru, 08/25/2006 08:36AM
after drowing a graph in splot i can not
save this plot in a file,
how can i do this.

11914

By: MartinS

08/25/2006 08:36AM

sptimeStarted by:astropunkin, 06/25/2010 02:36PM
I am trying to use the sptime task to
determine the exposure time for a fiber
bundle if used on the SOAR telescope in
Chile. I have made up the relevant text
files for specpars but when I try to run
sptime I just get the following
uninformative error

...

1245

By: astropunkin

06/25/2010 02:36PM

STA2 CCDRED translation fileStarted by:valdes, 03/22/2010 08:24PM
[b:796a6a58c8]From:
[/b:796a6a58c8]Beatrice Mueller
<mueller@psi.edu
([email]mueller@psi.edu[/email])>
[b:796a6a58c8]Date: [/b:796a6a58c8]March
20, 2010 11:13:04 AM MST

[b:796a6a58c8]To: [/b:796a6a58c8]Frank
Valdes <valdes@noao.edu
([email]val...

1538

By: valdes

03/22/2010 08:24PM

stand-alone daophot iiStarted by:andres, 07/07/2010 04:08PM
We would like to compile the stand alone
daophot ii (Linux Mandriva) and Peter
Stetson suggested ut to get a 64-bit
version of IRAF/IMFORT from Tucson.
Could you send it to us?

Thanking in advances,
Andrés

2099

By: fitz

07/07/2010 04:08PM

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

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 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 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

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

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

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

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

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 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 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

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

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...

1386

By: fitz

12/12/2008 04:03AM

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

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.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

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

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

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

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

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

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

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