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Last Post

2x2 binning of imagesStarted by:BrainBug, 12/25/2006 10:50PM
What i must to do for make 2x2 binning?
What command can help me with this task?
Thanks.

5251

By: fitz

12/25/2006 10:50PM

isoexamStarted by:JN, 06/06/2006 03:47PM
Hi-

I ran ellipse
(stsdas.analysis.isophote.ellipse) on
one of my images and it successfully
made an output table (gal.tab). Now I
am trying to overplot the ellipse
contours from the table onto my galaxy
fits image in ds9. I can plot the
contours whe...

5266

By: fitz

06/06/2006 03:47PM

Extracting specific rows with apallStarted by:rachelm, 07/23/2008 12:05AM
Hi,

Is there a way of non-interactively
telling apall to extract specific rows
from a data set? I.e., specifying the
aperture centre on the command line?
I've been able to set the aperture width
on the cl, and set the centre using the
colon keys in int...

5288

By: rachelm

07/23/2008 12:05AM

Rotation and flipping image of spectrumStarted by:pskoda, 03/15/2007 06:34PM
Hello,

I have problems with simple rotation and
flipping 2D image of spectrum followed
by apall and identify. What I want is
to physically rotate and/or flip image
by changing the pixels contents not just
transformation matrix keywords. The
problem ca...

5308

By: pskoda

03/15/2007 06:34PM

guiappsStarted by:Guest, 02/26/2006 12:06PM
I've checked the extern.cfg file for
correct path or permission but when i
try to use guiapps package this error
appears:

ERROR: task `guiapps' has no param file

What can I do? My OS is a Kubuntu linux
distro with the last version of Iraf and
X11

Tha...

5349

By: fitz

02/26/2006 12:06PM

help me installing stsdasStarted by:rocker_milan, 08/16/2009 02:26AM
hi everyone, i'm newbie for linux..
but, like or not i have to used linux
for my course.
i'm using suse ver 10.2 and iraf ver
2.12, and unpacked the stsdas&tables
ver 3.10 in home/iraf/iraf/local/tables
and home/iraf/iraf/local/stsdas

i have a prob...

5351

By: rocker_milan

08/16/2009 02:26AM

Spectool: Equivalent Width measuremen...Started by:keflavich, 03/31/2006 01:40AM
I've been trying to compare a few
spectra of the same object taken on
different observing nights to see if sky
subtractions varied and how they were
affected by the sensitivity functions
(they're at different wavelengths, so
they behave differently at t...

5377

By: sirmarcos

03/31/2006 01:40AM

Plotting and doing calculations on te...Started by:FSBoyden, 05/16/2007 02:58PM
Hi all.

The differential photometry pipeline I'm
building is basically done. Now I would
like to do some extra "stuff"

When the psf photometry task has run, I
use a script to dump the neccesary
fields with the help of "txdump" to a
text file. Example....

5392

By: fitz

05/16/2007 02:58PM

ximtool on macs: runaway ism_wcspix p...Started by:massey, 04/30/2006 10:23PM
Hi, Mike---

Deidre complained that her G5 machine at
work seemed a little "unresponsive", and
I checked with "top", and found there
were 6 (!) ism_wcspix processes
fighting to see who could get the most
CPU. I have seen this in the past under
OSX: if ...

5393

By: fitz

04/30/2006 10:23PM

spectrum fron an echelle spectrographStarted by:, 04/14/2006 06:08PM
To whom it may concern,

I am faced for the first time with a
spectrum taken with an echelle
spectrograph. As far as I can
understand, each line of the CCD image
contains a small portion of the whole
spectrum in say roughly 50-100 Angstrom
chunks. What ...

5416

By:

04/14/2006 06:08PM

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...

5431

By: Acrobat

03/08/2007 01:21PM

Problem with PSFStarted by:russty, 10/12/2006 01:16AM
When I'm in the package
noao.digiphot.daophot and try to run the
PSF command I get the following error:
ERROR: Cannot open connected subprocess
(daophot$x_daophot.e)

Does anyone know why this would happen?

Thanks

5459

By: Janewaypi110

10/12/2006 01:16AM

geotran/gregister issuesStarted by:pyrafuser, 01/31/2006 04:02AM
Hi! I'm trying to automate LRIS
multislit spectra reduction, and I'm
currently working on line
rectification/wavelength calibration.
The AUTOID task has not been successful
in any of the attempts I tried, so I
wrote a python task that identifies
lines a...

5462

By: valdes

01/31/2006 04:02AM

Adding tasks in IRAFStarted by:JediWill, 06/29/2006 09:28PM
Hello everybody,

I am trying to add a task into my
login.cl file. I am putting the
following after all the other tasks:

task $varstar5 = "$home/Will/varstar5"

When I do this, it kills iraf and tells
me I need to rerun mkiraf. So, I guess
my questi...

5467

By: JediWill

06/29/2006 09:28PM

imshiftStarted by:ping, 04/13/2006 11:07PM
I have a question about using imshift.
I found that imshift cuts off the
images shifted out of the original
boundary.

e.g. original image is 1000x1000 pixels
when imshift it by [200,300], the output
image is still 1000x1000, with the
pixel position...

5467

By:

04/13/2006 11:07PM

dopcor: "No correction specified...Started by:malte, 06/07/2007 02:49PM
I'm trying out dopcor under Pyraf.
Using more or less the same parameters
as the example in the help, I'm getting
the same error every time, No correction
specified.

[code:1:2f35d3f6a8]--> dopcor del0
del0v redshift=-vhelio isvel+
Killing IRAF ta...

5508

By: malte

06/07/2007 02:49PM

ERROR: MWCS: dimension mismatch (mw_o...Started by:rohit, 11/15/2010 09:26PM
I downloaded an HIRES file from their
archive. When I try to open it I get the
following errors:

ecl> imhead
HI.20080915.26299_2_10_flux.fits
HI.20080915.26299_2_10_flux.fits[0][real]:
object (Flux)

ecl> splot
HI.20080915.26299_2_10_flux.fits[...

5531

By: fitz

11/15/2010 09:26PM

Registering ImagesStarted by:Hooloovoo, 05/30/2006 10:57AM
Hi,

I need to align several *.fits frames
from a single telescope and then stack
them. The problem is that there are
small rotations from frame to frame so I
cannot use
[color=blue:34a91f3caf]imalign[/color:34a91f3caf].
I attempted to use [color=blue...

5548

By: Hooloovoo

05/30/2006 10:57AM

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...

5593

By: valdes

04/06/2006 05:07PM

"merge amps" in mscredStarted by:Edward Olszewski, 02/13/2006 06:32PM
I am running IRAF 2.12.2a.
Merge amps in ccdproc in mscred simply
does nothing.

At the Steward 90" we are running
2.12.2.
Merge amps works.

Was there a bug fix or patch that was
needed?

ed olszewski

5628

By: Edward Olszewski

02/13/2006 06:32PM

Can IRAF process 2MASS data?Started by:jay, 05/22/2007 08:07AM
Recently, I try to use IRAF to process
the 2MASS data. The data format is
binary, namely, it is .bin.

And I try transform .bin data into IRAF
image format, but it doesn't work.
Can IRAF process this kind of data? And
how?

It is very important to me....

5651

By: jay

05/22/2007 08:07AM

Using an completely empirical psf in ...Started by:jwalton, 04/21/2008 01:39AM
I am trying to perform psf photometry on
a crowded field using the IRAF Daophot
package, but I am running into a
problem. I am not going about the
standard procedure of creating a psf
from my image since there are not enough
"good" stars to create the p...

5664

By: raybutler

04/21/2008 01:39AM

fxcor echelle aperture regionsStarted by:orsola, 06/15/2006 03:24PM
Hello -

after browsing posts regarding
Xcorrelating spectra I still have no
answer for my question. So here is a new
post.

I am Xcorrelating echelle spectra. I
would like all 23 apertures to be used
and only ONE shift result to be returned
to me. I k...

5681

By: orsola

06/15/2006 03:24PM

ximtool and linuxStarted by:massey, 04/28/2006 08:14PM
Mike,

I've resurrected my old Linux box
(running RH 9) for my summer student,
and in trying things out I find I cannot
get ximtool (V1.3) to work correctly:
both under "gnome" and under "kde" I
have the problem that I cannot change
the brightness or co...

5686

By: massey

04/28/2006 08:14PM

fxcor and synthetic spectraStarted by:Angela, 02/10/2009 04:49PM
Hi!
I am trying to find radial velocity
using FXCOR, but I would like to use
synthethic spectra as template.

I've created some synthetic spectra in
ASCII format, and converted them into
fits using rspectext command.

Then I tried to use FXCOR on the r...

5715

By: fitz

02/10/2009 04:49PM

Heliocentric Julian date converterStarted by:guest, 06/15/2006 05:59PM
Hi all,

Could somebody tell me how I can use
IRAF to convert from HJD to JD?

Thanks!

5746

By: fitz

06/15/2006 05:59PM

DS9 failure [SOLVED]Started by:cong, 05/21/2008 06:45AM
Dear all,

I just now installed IRAF 2.14 on my
Fedora 9 computer. I tried X11IRAF but
it doesn't support 16-bit color depth,
so I turned to DS9. I grabbed DS9 from
Fedora repository ("yum install ds9")
but the ds9 failed to start:

% ds9
Error in start...

5754

By: cong

05/21/2008 06:45AM

ccdproc errorStarted by:mora978, 02/22/2009 12:46PM
Hi all!

I have a problem with ccdproc when
trying some flat correction:
ERROR: Cannot open image (006c.fit)

I have set imtype to "fit,noinherit" in
my login.cl file.
ccdproc params:
[code:1:731a3454d9] images =
"@flatkorr_in.list"
(outpu...

5763

By: jchavez

02/22/2009 12:46PM

differential photometry problemStarted by:ozbasturk, 06/18/2008 09:03PM
Hi all,

I'm trying to do differential photometry
on some 500 frames. I used daophot
package phot task to do the aperture
photometry and get the results in mag.1
files. Files contain the magnitudes of
both the variable and the comparison
stars. Now the...

5770

By: fitz

06/18/2008 09:03PM

Problem compiling a task on MacIntelStarted by:rrg, 11/14/2006 03:48AM
I'm trying to compile a task I had
running on PPC Macs. I modified the
path to the libraries to
/iraf/irafbin/noao.bin.macintel/libsmw.a.
When I run mkpkg I get

check out file `libpkg.a =
/Users/gal/Work/iraf/scripts/libpkg.a'
xc -c -w wrspect.x
wrsp...

5789

By: jturner

11/14/2006 03:48AM

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