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Last Post

Still prompt hidden parameterStarted by:mz79, 07/21/2009 11:39AM
Dear IRAF Support,

I have the problem that some hidden
parameters are still prompted, e.g.:
apextract> apsum dummy.fits find+
apextract> Find apertures for dummy?
(yes):

This prompt is nasty and redundant since
the hidden parameter was already ...

3416

By: mz79

07/21/2009 11:39AM

still having problems with fixpix in ...Started by:Sean, 07/11/2007 02:51AM
Hi,
I have been trying to fix several
features on a flat frame, which move due
to flexure in the telescope and hence
cause spurious positive features when
they are applied to an image, with the
task fixpix. I have an badpixel mask
that I generated wi...

5267

By: fitz

07/11/2007 02:51AM

stdimage options for large (14K) image?Started by:Adrienne Cool, 07/21/2006 07:18PM
Hello,
Does anyone know how to set stdimage to
allow
a very large image to be displayed? I
am using
imt8192 at the moment,
set stdimage = imt8192
but now have a 14,000x14,000 pixel
mosaic to display,
and don't know how to find out wha...

14177

By: emiliano

07/21/2006 07:18PM

stdimage in ds9Started by:grijs, 08/13/2014 09:25AM
Hi, I'm helping a student to set up Iraf
to display HST images
properly -- she's been struggling to run
some commands (which worked
fine on my own computer), so we found
out that while the images are
1600x1600 pixels, the default ds9
display setting ...

3180

By: fitz

08/13/2014 04:25PM

Status of the github repositoryStarted by:olebole, 08/18/2017 08:09AM
Hi (especially fitz),

since a few months, the IRAF source was
put into a github repository:

[url]https://github.com/iraf/iraf[/url]

After that, I (and some others) started
to look into the current problems of the
IRAF code and proposed [url=ht...

2055

By: olebole

09/27/2017 07:58PM

Startup message?Started by:AnTaR3s, 10/24/2009 03:08PM
Hi

I switched from Linux to Mac OS last
week, IRAF is already running, but the
welcome message when I login is
different. It's not important since
everything else is working as usual, but
I wonder how I can get the large
IRAF.net logo in the message wh...

1775

By: AnTaR3s

10/24/2009 03:08PM

Starting IRAFStarted by:ircarrascal, 01/22/2016 06:58PM
I did an mkiraf inside /home/ivan/IRAF
and then a script like this:

cd ~/IRAF
xgterm -sb -title "Image Reduction and
Analysis Facility (IRAF)" -e "ecl"
&

which I saved in my bin directory as
"iraf" so that when I type "iraf" in the
terminal ...

1782

By: ircarrascal

01/27/2016 03:50PM

Starting ds9 from loginuser.clStarted by:FSBoyden, 08/21/2006 03:05PM
Hi All

It may sound a stupid Q, but how would
you call DS9 from the loginuser.cl. I
would like to skip the step where I have
to start DS9, and run it in the bg,
before every IRAF session. I am not that
familiar with coding in c-shell.

Thanx

Pat

8049

By: fitz

08/21/2006 03:05PM

Start IRAF without internet connectionStarted by:jmiguel, 05/19/2014 05:19PM
Dear all,

I would like to know if there is some
way to config IRAF when
the computer has no internet connection
in order to avoid the next warning:

cannot access host 'iraf.noao.edu:80'

I have next versions:

- PC-IRAF Revision 2.16.1
- PyR...

3437

By: raph38

08/28/2014 06:55AM

standard in NOAO onedspecStarted by:tbeck, 02/15/2008 05:57PM
Hi there,

I'm presently trying to run the task
onedspec.standard in my 2.13 beta
installation of IRAF on my Mac intel
system. (I have recently switched
institutions and am running IRAF on a
new platform compared to my old system,
which was IRAF 2.12)....

7847

By: tbeck

02/15/2008 05:57PM

stacking dithered mosaic exposuresStarted by:bomond, 07/02/2007 03:16PM
Hi all,
I have a basic WCS on my mosaic images
which i'm trying to improve with
MSCCMATCH. After that i'm reconstructing
the images with MSCIMAGE and stack them
with MSCSTACK, following this example:
http://www.noao.edu/noao/noaodeep/ReductionOpt/frames...

2452

By: valdes

07/02/2007 03:16PM

splot, imexamStarted by:AndrewS, 05/21/2011 10:02PM
I am trying to use splot to look at
spectra.
There are a few things that I haven't
figured out how to do:
for example when I run:

splot image1.fit

1) its default is to display a graphic
of a single
[i:b4b05afa20]column[/i:b4b05afa20] of
the image, wi...

2279

By: AndrewS

05/21/2011 10:02PM

SPLOT windowStarted by:rohit, 10/04/2010 03:57PM
My SPLOT seems to have a mind of its
own. When I use the splot command to
plot a spectra, I get this small range,
like, 12 Angstroms. It is as if I am
zooming onto a small section of the
spectra. How do I change my view?

Below is the lpar of SPLOT.

...

1983

By: rohit

10/04/2010 03:57PM

splot wavelength calibrationStarted by:heather, 05/10/2011 07:07PM
I'm looking at spectra which were
originally SDSS stellar spectra,
rebinned to a linear wavelength scale by
IDL code in the SSPP (segue pipeline)

Looking at the header of the fits file,
CRVAL1 = 3850 and CD1_1 = 1. (both
Angstroms)

When I plot the dat...

2019

By: heather

05/10/2011 07:07PM

SPLOT task does not display the right...Started by:Amanpreet, 10/26/2017 06:54PM
Hi all,

My splot package does not display the
right information for any command. e.g.
if I want to check the position of the
cursor, it does not display the
wavelength and flux for a spectrum. It
is not working on any spectrum and I
tried "unlearn sp...

706

By: Amanpreet

10/26/2017 06:54PM

splot output fileStarted by:Alaa, 12/14/2014 06:44PM
Hello,
I need some help regarding splot. I'm
looking for a way to control the output
file of splot task.
I use the following command to analyze
my spectrum and save the results to the
output file of the splot

> splot spec1.fits
save_file="spec1-s...

1858

By: fitz

12/15/2014 05:01PM

splot in histogram modeStarted by:, 12/16/2008 01:17PM
Hello guys,

I want to splot some spectra in
histogram mode. So I epar splot and set

(options = histogram) Combination of
plotting options:
auto,
zero, xydraw, histogram,

nosysid, wre...

2539

By:

12/16/2008 01:17PM

splot Gunn-Stryker spectraStarted by:stoughto, 05/06/2010 01:45PM
I downloaded gunn stryker spectra from
ftp://ftp.stsci.edu/cdbs/grid/gunnstryker/

Is there a way to splot these? I get
this error when I try:

onedspec> splot
/home/stoughto/das/gunnstryker/gs_1.fits
ERROR: MWCS: dimension mismatch
(mw_open)

and ...

1577

By: fitz

05/06/2010 01:45PM

splot Gaussian Fit--higher precision--Started by:rohit, 11/24/2008 06:52PM
I am using SPLOT to identify the
wavelenghts of telluric lines by fitting
a Gaussian (using the key "k" ). IRAF
gives the wavelength value to 5th
decimal point. I would like IRAF to give
me to 7th decimal point. The telluric
lines that I have plotted ar...

4208

By: valdes

11/24/2008 06:52PM

splot FEROS spectraStarted by:giannicatanzaro, 07/23/2013 08:10AM
Hi all

I downloaded FEROS spectra from the ESO
archive, but I have problem when I use
splot to see the spectrum.

Giving the command
splot
r.FEROS.2007-01-30T01:57:04.945.1051.fits[*,1]

I get a plot not calibrated in lambda
but in "position", start...

1103

By: giannicatanzaro

07/23/2013 08:10AM

SPLOT errorStarted by:owen, 04/17/2008 07:42AM
Hi, does anyone know what is "PANIC in
`/iraf/iraf/noao/bin.redhat/x_onedspec.e':
File write error (STDERR)" meaning? This
occurs when quiting SPLOT task by q-key,
and then the xgterm doesn't response any
more...

Owen

2639

By: owen

04/17/2008 07:42AM

splot deblendingStarted by:Guest, 01/20/2010 02:02PM
Dear IRAF team,
I am using IRAF now for deblending and
gaussian fitting the emission
lines. Results are good, but it would be
nice to know measurement errors
of the resulting gaussian profile
(center, flux, ...). Is it possible to
get those? I have f...

1605

By: fitz

01/20/2010 02:02PM

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...

2333

By: fitz

09/14/2016 06:08PM

splot - invert colourStarted by:babbloo, 12/06/2009 01:43PM
Hi

When I use splot to analyze the FITS
spectra, is there anything I could do to
save the image in black and white
format, so that it looks clear when I
print it on a paper?

I need to include images in a report and
currently taking screenshots of the ...

2578

By: fitz

12/06/2009 01:43PM

splitting a fits cube?Started by:Arp, 11/18/2010 12:57PM
Hi!

Though this fits file comes from CASA, a
radio astronomy software, it is just a
"simple" fits file. But now I have one
with 4 images in one fits file. Using
DS9 I can browse through all of the
channels. Now I want to create 4
individual fits files ...

4237

By: Arp

11/18/2010 12:57PM

Speeding up repetitive taskStarted by:The Big H, 12/16/2009 03:33AM
I have to perform a large number of
repetitive tasks on a large number of
files. Basically I have to do the
following:

imcopy DataFile[0][*,XX].fits
SingleXX.fits
program1 SingleXX.fits
{inputs that program1 will prompt me
for}
program2 SingleXX.fits
...

1415

By: fitz

12/16/2009 03:33AM

Spectroscopic WCS referenceStarted by:paco, 06/07/2011 06:10PM
For a simple onedspec format fits file,
does the wavelength for pixel 1 refer to
the left (short wavelength) edge of the
pixel? or the center? I think the left
edge (as for an image WCS), but would
like to be sure.

And if I convert that fits file to ...

1363

By: valdes

06/07/2011 06:10PM

Spectra and image slicersStarted by:esemenko, 01/13/2007 11:37AM
Hi, everyone! My question addressed to
people who use Iraf for processing of
spectra obtained with an image slicer.
Our slicer split image into 3 slices, so
2 slices shifted relatively to central
one approximately on 3 pixels. What is
method you are usi...

4500

By: esemenko

01/13/2007 11:37AM

Spectorphotometry standard starsStarted by:delta_kuadrant, 12/03/2009 11:45AM
Hi all

Where I can find or download
spectrophotometry standard stars for
IRAF database? and how can I integrate
those stars into database?
I want to do flux calibration for my
spectra
sorry for noob questions

thanks

-PJ-

3218

By: fitz

12/03/2009 11:45AM

specify background region around targ...Started by:baddison, 04/10/2008 09:47PM
Hi,
I was wondering if anyone knows how to
specify a background region near a star
(for instance having a box of a certain
area to the right or left of the
target/comparison star). My problem is
that both my target and comparison stars
are both near t...

1615

By: valdes

04/10/2008 09:47PM

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