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conclude response taskStarted by:tneve, 08/08/2008 09:43AM
Hello!
I'm new at all this IRAF and Unix thing.

I'm running the task
[i:21ca87735d]response[/i:21ca87735d] to
obtain the normalized flat spectrum and
everything seems to be working well: I
edit the task with [i:21ca87735d]epar
response[/i:21ca87735d], ...

2501

By: valdes

08/08/2008 09:43AM

computing error in EWStarted by:rohit, 04/27/2009 12:23PM
I use the SPLOT task to obtain the
equivalent width, however, IRAF does not
give me the precision or the error
involved in measuring EW. Is there
something I need to enable? How do I get
the error in EW?

Thanks,

1660

By: valdes

04/27/2009 12:23PM

composite spectrumStarted by:uros, 06/07/2017 08:13AM
Hi :)

first sorry if this question already has
been asked, I try to find did someone
ask this before but without success.

I am trying to create composite 1D
galaxy spectrum from 4 single 1D spectra
(different galaxies).
I know how to shift all sp...

1232

By: fitz

06/08/2017 01:53PM

Compiling fortran task on cygwin/winxpStarted by:iwold, 12/07/2006 06:26AM
Dear Mike,

Thank you for all your help. I am
trying to compile a fortran task named
photstand.f I am attempting to follow
procedures laid out in previous forum
topics with no success. This is what I
have done:

[code:1:c0f39aee2d]csh
>setenv ira...

8475

By: iwold

12/07/2006 06:26AM

compiling fortran programs within irafStarted by:amiravb, 07/08/2010 07:55AM
Can someone help me - I am trying to use
a fortran program that has previously
worked. The only difference is now I am
running it from my personal laptop. I am
compiling within iraf,and keep getting
the following errors?? e.g.
> fc program.f
program....

1908

By: amiravb

07/08/2010 07:55AM

compare observed and synthetic spectraStarted by:delta_kuadrant, 08/05/2009 06:40AM
Dear all

sorry for bothering you again^^
I have a synthetic spectra and I wanna
compare it with observed spectra from
echelle data.
I already transform observed spectra
into text/ascii file using wspectext,
and select a certain range of
wavelength.
how...

4724

By:

08/05/2009 06:40AM

combining with scombineStarted by:rohit, 08/12/2008 02:41PM
I have a peculiar problem when combining
spectra with scombine. There are 4
spectra(call it orders) whose x-axis has
pixels which range from 0-1000 for most
spectra while the y-axis is normalised
flux. I would like to combine them such
that I have a spe...

2140

By: valdes

08/12/2008 02:41PM

Combining two spectra from two differ...Started by:rohit, 12/01/2009 05:31PM
I would like to combine two spectra
taken on the same instrument with the
same setup of the same star but at two
different epochs (particularly 5 months
apart). How do I combine them?

1976

By: fitz

12/01/2009 05:31PM

combining spectra taken months apart:...Started by:westmoquette, 03/08/2011 05:16PM
I have a set of IFU observations taken
at the same coords and spectrograph
setup, but ~two years apart. Before I
can co-add them, I need to correct for
the different geocentric velocities at
the time of observations - i.e. correct
to the heliocentric ve...

3133

By: valdes

03/08/2011 05:16PM

combining multiple exposures of one f...Started by:puchao, 09/05/2008 11:41PM
Using the NICMOS camera, I have gathered
multiple exposures for one filter with
different exposure times and I would
like to combine the resulting images
using iraf.

Thanks.

1891

By: valdes

09/05/2008 11:41PM

combining eso wfi data still shows &q...Started by:wierdling, 03/21/2009 05:58AM
Hello all,

I just recently found that I can
download data from the ESO WFI
telescope, but on some of the data,
after processing, there are still
"streaks" (in the final stacked image).

Please forgive me if I use the wrong
terms, I don't have any forma...

5987

By:

03/21/2009 05:58AM

combining band spectraStarted by:nrowell, 07/13/2009 11:50AM
Hi,

Just wondering - Is there a way to
combine spectra so that the associated
band spectra are also combined? scombine
ignores the band spectra and only
combines the primary spectra in each set
of images. I can't find another task
that would do this.

...

1895

By: nrowell

07/13/2009 11:50AM

Combining apertures with scombineStarted by:colinn, 04/24/2014 06:46AM
Hi
I'm trying to combine the orders from an
echelle spectrum that have been
separated into individual files using
scopy into one long spectrum so I can
see the overall shape.
I am using scombine.
My input file is
@inscombine1252_bt14long.lis, this co...

1217

By: valdes

05/12/2014 09:08PM

combine, flatcombine, zerocombine, etc.Started by:jhickey, 06/30/2006 02:08AM
I've just installed IRAF on a
Redhat/Fedora box. Most of the IRAF
tasks that I've tried so far work
normally. The one exception is the
combine tasks in CCDRED. When I try to
run input images (lists or wildcards)
with combine tasks I get the
following...

2960

By: fitz

06/30/2006 02:08AM

COLOR Installation Problem (fwd)Started by:fitz, 06/13/2006 09:50PM
[color=red:6baa23af57][MOD NOTE:
Forwarded from
comment][/color:6baa23af57]

Authored by: Anonymous on Tuesday, June
13 2006 @ 03:37 PM MDT
When I try to install locally the color
package, there is a "color" added
everywhere :
mkpkg -p color linux will...

2273

By: fitz

06/13/2006 09:50PM

CNSHD548725 Fwd from User: Bug in po...Started by:Guest, 12/01/2005 02:01PM
Dear Doug,
I was forwarded your request via
IRAF help and STScI help. I wrote the
imaging polarimetry tasks in the
stecf.impol package.

I looked at your images. They had some
floating overflow values in them
(- and + 3.38E38) which I am sure ...

2886

By: Guest

12/01/2005 02:01PM

Chopping the ends of spectraStarted by:nrowell, 04/26/2007 02:12PM
Hi,
Just wondered if anyone can help me with
this. I'm working with some spectra that
are very noisy at one end, and i want to
chop the last 1000A off. I've tried
various tasks in IRAF and can't find
anything to do this. Does anyone know of
a suitable m...

2436

By: fitz

04/26/2007 02:12PM

Changing the font size of the graphic...Started by:klabrie, 04/01/2009 01:56AM
Hi,

It seems that no matter how big the
xgterm font size is, the graphics window
font size remains the same, which
unfortunately is for some of our local
users too small. Is there a way to
control the font size used by the
graphics window?

Thanks
Kat...

6852

By: klabrie

04/01/2009 01:56AM

Changing size of images in Started by:suma99, 08/24/2015 05:52PM
Hello!

I am trying to change the size of the
simulated image through the "gallist"
and "mkobjects" functions in the
"artdata" package. The image always come
out to be 512 x 512 in size, but I would
like the images to be bigger or smaller
sometimes. T...

1859

By: suma99

08/24/2015 06:03PM

Changing projection geometry?Started by:keflavich, 04/20/2007 05:51PM
Is there a task capable of changing an
image's projection geometry? I'm
dealing with two data sets, one with sin
(e.g. CTYPE1=RA---SIN), one with tan,
and I'd like to convert both to linear
because I'm using some imaging code that
does a horrible job o...

3073

By: fitz

04/20/2007 05:51PM

changing data values with imshift and...Started by:bwp, 09/27/2006 04:32PM
I am attempting to analyze data from the
Hubble archives. At this stage, my goal
is to align and median combine 4 images.

I used the STSDAS task wfits to make a
standard FITS file of the image from the
planetary camera (I intend to deal with
the wide f...

4027

By: valdes

09/27/2006 04:32PM

Changing apertures in FXCORStarted by:rohit, 04/13/2010 08:12PM
I am using an echelle spectra.

Is there a way to change apertures in
FXCOR interactively? Like the way you
change the fitting function by typing
:func center1d

Doing a "?" in the interactive window
gave me a the following keyword:

:apertures

I ...

1681

By: rohit

04/13/2010 08:12PM

changing "wavelength" label...Started by:rohit, 04/16/2008 04:35PM
I have been converting dat files into
fits files. In the dat files I have two
columns, flux and wavelength. The
wavelength is in microns. I am able to
successfully convert dat into fits but
when I use splot, the wavelength label
in the x-axis shows it a...

3157

By: valdes

04/16/2008 04:35PM

changes in ccdproc pram file will not...Started by:David Emory, 07/02/2008 10:38PM
When I edit the ccdproc pram file and
save with ":q" and then look at the file
(using lpar ccdproc or epar ccdproc) to
make sure that the changes were saved, I
get back the original file. Changes are
not being saved. Any suggestions?

2974

By: valdes

07/02/2008 10:38PM

Change x-axis units, orientation?Started by:keflavich, 04/06/2006 05:07PM
I have a longslit spectrum that I'm
trying to take spatial cuts of. That
was simple enough, I changed the
dispersion axis and used 'apall' to get
my cuts. However, the units and
orientation are wrong. Orientation
would be simple enough to fix by edi...

5594

By: valdes

04/06/2006 05:07PM

centering algorithm for fitpsfStarted by:Guest, 10/24/2006 09:34AM
Hello,

I am using the task "fitpsf"
(noao.digiphot.apphot) with a list of
coordinates. I would like to know if
there is a possibility of fixing
the center without allowing the task to
search for it (the center, the
brightest source nearby). I know t...

3369

By: phil

10/24/2006 09:34AM

Center paramters, hidden? NO! Inheri...Started by:stinker, 03/21/2009 10:50PM
Hi IRAFers,

I am writing a script that does a lot of
centering; takes a lot of images and
approximate coordinates and finds more
accurate centers.
Using noao.digiphot.apphot.center

The problem is that I have to do this
for *VERY MANY* different sets...

1585

By: stinker

03/21/2009 10:50PM

center doesn't write text file in outputStarted by:le.davide, 10/22/2013 10:50PM
Hi,
all of a sudden the IRAF task
noao.digiphot.apphot.center doesn't
write the text file in output when I run
it in non-interactive mode.
If I run in interactive mode and I ask
to "write and quit", then it works.
Any idea about what do I have to cha...

682

By: fitz

10/22/2013 11:07PM

ccxymatch: USNO A2.0 data vs USNO B1.0Started by:rbroberts, 04/28/2007 02:01AM
I'm having a problem with getting
ccxymatch to plate solve an image when
extracting data from USNO A2.0 vs B1.0.
I have A2.0 locally, but B2.0 I have to
download via a small Perl script I wrote
to use the CGI interface. The image is
actually [b:6bb165...

3470

By: rbroberts

04/28/2007 02:01AM

CCTRANStarted by:donzelli, 06/22/2015 08:14PM
Hi, I've have already the solution given
by the task CCMAP and I wanted to use
it to transform (x,y) pixels to ra and
dec coordinates. So in the CCTRAN
parameter
database I write the name of the
database written by the CCMAP task.
The result is stran...

1104

By: donzelli

06/25/2015 10:46AM

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