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Last Post

invert transformStarted by:, 01/12/2006 03:02AM
Is there an IRAF task to invert a
transform found using
fitcoords/transform?

Also, how do I decipher the values
stored in the fc[filename] files?
Performing an xorder=3, yorder=2
Chebyshev fit on a 2036x2046 image
yielded the following in my
fc[filenam...

5009

By: fitz

01/12/2006 03:02AM

A Problem with DAOPHOTStarted by:salis, 09/29/2006 01:29PM
Dear IRAF people,

I am trying to use DAOPHOT with my CCD
observations.

But I get the error below when I run
daofind. Do you have any idea what this
error related with?

There was an old topic in the Forum I
found also concerns the same error. But
sol...

4993

By: fitz

09/29/2006 01:29PM

daofind interactive display device errorStarted by:Santiago, 11/23/2008 06:50PM
Hello, I'm trying to make an interactive
daofind routine and there is an error
regarding the display device, can't copy
and paste so i write down:

apphot> daofind
Input image(s) (Fy080826.0046.fits):
Warning: Error opening graphics device
Warning: G...

4975

By: fitz

11/23/2008 06:50PM

hedit/hselect boolean query on imaget...Started by:rbroberts, 09/28/2006 03:11AM
I'm stuck trying to select a set of
images based on imagetyp which need to
have their imagetyp changed. I've tried
about every permutation of comparison I
can think of but consistently get this
error in every case:

[code:1:2373794b8e]ERROR: Imposs...

4942

By: fitz

09/28/2006 03:11AM

ccdproc error processing flatStarted by:jdm, 08/05/2011 01:56PM
Hi,

I'm trying to run ccdproc to process my
object frames, and it is failing with
this error:

ERROR: Error processing Dflatu.fits
"grow=grow)"
line 325: mscsrc$ccdproc.cl
called as: `ccdproc (mode=h)'

Here are the parameters of ccdproc th...

4936

By: valdes

08/05/2011 01:56PM

data from spectrum to textStarted by:andreas, 06/03/2010 12:41PM
hi all,

i have several spectrum (after dispcor)
with gaussian profile. i need to convert
it into data text, i try to say that i
want to display in text file instead
spectrum (image file), so i can get
detail. How can i do that?

Any help would be appre...

4936

By: fitz

06/03/2010 12:41PM

mscred.mscdisplay and .mscexamineStarted by:krust, 12/16/2010 02:49PM
I've installed v2.15, 64 bit Linux
version. mscdisplay and mscexamine
give "segmentation error" immediately
after it has prompted for the image name
and frame. I'm using DS9, this all
worked fine before the upgrade. I'm
trying to interact with M...

4934

By: valdes

12/16/2010 02:49PM

ERROR: floating point overflowStarted by:ping, 01/19/2007 09:57PM
Hello,

I run daophot/psf on Mosaic images. It
went smoothly on every image except on
one, it always dies with the error:

ERROR: floating point overflow

The image itself looks fine.

Any suggestions?

Thanks,

Ping :shock:

4881

By: fitz

01/19/2007 09:57PM

Problems with ELLIPSE and DS9Started by:fitz, 05/09/2012 05:35PM
I am using IRAF V2.16 and SAOImage DS9
6.2. I have problems with ELLIPSE: the
task works, but I cannot see the
ellipses overlaid on the greyscale image
displayed by DS9. In fact, I cannot use
ELLIPSE interactively. On the contrary,
when I run ISOIMAP, ...

4874

By: massey

05/09/2012 05:35PM

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

daophot.addstar problemStarted by:gruntle, 02/23/2006 08:48AM
Hi,
I'm using addstar in the daophot package
to simulate stars (based
on a psf model computed with the psf
task).

The task runs ok, I get no error
messages and the resulting
simulated images look nice. I'm adding
~1000 stars to a
~2000*2000 pixel im...

4865

By: phil

02/23/2006 08:48AM

Converting Fits file into ASCII formatStarted by:rohit, 10/31/2006 04:34PM
Hi All,

I have a fits file. It is actually a
spectra. When I use splot
<filename>.fits I get a plot of
spectra of an object which is normalized
amplitude (y-axis) versus wavelength
(x-axis). I would like to extract the
data, get two columns one ...

4832

By: rohit

10/31/2006 04:34PM

Gmos reductionStarted by:donzelli, 07/29/2011 12:08PM
Hi,
I reduced gmos (mos mode) data following
the example included in the Gemini
package and I have some questions about
the results I get.
After gsextract one could expect to get
1-d spectra in the resulting image.
In other words, if you do imhead
image...

4831

By: emma

07/29/2011 12:08PM

daofind seems to be ignoring search p...Started by:bwp, 06/26/2007 06:28PM
I am having some difficulties with
[i:a4e1593db1]noao.apphot.daofind[/i:a4e1593db1].
As I understand it, the main parameters
that determine how many objects I detect
are "sigma" and "fwhm". However, I get
the same number of objects using sigma=4
as sigm...

4823

By: GalacticKitten

06/26/2007 06:28PM

rfitsStarted by:Guest, 11/17/2005 06:22PM
Dear Mr. Phillip,

Its been long time we haven't get in
touch.Hope you still remember me.
[img:f2b5c14464]http://us.i1.yimg.com/us.yimg.com/i/mesg/tsmileys2/04.gif[/img:f2b5c14464]
I have a few questions here:
1. Why there is a big different ...

4821

By: zarate

11/17/2005 06:22PM

mkpkg relinkStarted by:ygrange, 03/30/2006 05:09PM
Hi there,

I have a question about phot. I would
like to crank up the precision of the
magnitude error (just for illustrative
cases, I know this might be unnecessary
for most cases). To get `better'
precision I already found posts about
editing the apph...

4809

By: ygrange

03/30/2006 05:09PM

creating 3D spectral cubeStarted by:hlandt, 12/27/2006 01:52PM
hi,
how can I create a 3-dimensional
spectral cube in IRAF?
I have several individual 1-dim spectra
and I would like to stack these into a
single file with three dimensions, e.g.,
spectrum[108,10,20] where the first
dimension is the wavelength.

With t...

4802

By: jturner

12/27/2006 01:52PM

fxcor with double line eclipsing bina...Started by:delta_kuadrant, 04/06/2009 09:49AM
hello all,

I've tried a fxcor package using
template spectra (i thought it has
single line data) on double line
eclisping binary data. It's seemed
working flawlessly, and the result
(vhelio) came up. the thing is, i didn't
know which component (seconda...

4801

By: delta_kuadrant

04/06/2009 09:49AM

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...

4799

By: fitz

08/29/2009 05:45PM

Problems with multidrizzleStarted by:koneil, 06/23/2006 01:32PM
We have pyraf Revision 2.12.2a, STSDAS
Version 3.5, and DITHER Version 2.2
installed on our redhat machines here.
It seems to work fine for most things,
but when I try to run multidrizzle I get
an error. Could you please tell me
what might be wrong w...

4794

By: m223

06/23/2006 01:32PM

hselectStarted by:Guest, 08/10/2007 01:47AM
Hi There,

Please, I have had a bit problem in
working out with the hselect task iraf.
I am working on a macbook machine, IRAF
2.13-beta2.

----------------------------------
cl> hselect radial.fits ra yes
ERROR: parameter 'missing' not found
called ...

4774

By: abrito

08/10/2007 01:47AM

problem with gsflat of gmos gemini pa...Started by:jorge, 06/10/2010 06:05PM
Hi all:

I have a problem with gsflat task from
gmos gemini package. It gives the
following error msg when i try to reduce
spectroscopic flats of standar star
files taken in longslit mode:

GIREDUCE exit status: good.
----------------------------------...

4762

By: emma

06/10/2010 06:05PM

xguiphotStarted by:Guest, 02/06/2006 05:01PM
When I try to run xguiphot on a Suse
linux distribution using xgterm, it
doesn't display the image but all the
function run correctly, so if for
example i have to do photometry on a
star i have first to read the
coordinates with ds9 and then search the
...

4759

By: fitz

02/06/2006 05:01PM

identify (calibrating spectral image)Started by:cosmologist, 05/14/2009 06:09PM
I want to calibrate my reduced spectral
image, I am reading Phil Massey's guide,
but I got totally stuck!
On page 23 it describes what to do after
using the task identify, [ Each time,
you will be asked for the corresponding
wavelength. You can enter an...

4740

By: valdes

05/14/2009 06:09PM

Finding header key-wordsStarted by:FSBoyden, 11/23/2006 09:14AM
Hi all

I am trying to fix image headers, and
have looked at hedit, hselect, hfix, as
to what they say. The thing is that I
want to do it in a batch mode.

Full story: For some of our datasets
there are no airmass, RA, dec, ...
values/fields in the head...

4733

By: FSBoyden

11/23/2006 09:14AM

about epsStarted by:bai, 05/25/2007 03:58AM
Hi,
When i save .fit to eps, i use the
following:
:.snap eps
But x-label is too small.
How do i change the size of labels in
.eps files?
Thanks

4725

By: kkwitter

05/25/2007 03:58AM

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...

4722

By:

08/05/2009 06:40AM

bus errorStarted by:crodgers, 05/17/2007 04:01AM
I recently installed iraf on my
Powerbook (Mac OS 10.4.9 PPC) and for
some reason when I try to do anything
with my images iraf spits out ERROR: bus
error.

Anybody have any suggestions?

Thanks

4721

By: fitz

05/17/2007 04:01AM

"cannot open pixel file" af...Started by:china_108, 11/12/2008 05:03AM
Everytime when I restart my computer, I
cannot open all imh files that were
processed in a previous application. It
says "cannot open pixel file xxx.imh"
How can I fix the problem?

4694

By: fitz

11/12/2008 05:03AM

xregister problemStarted by:Guest, 01/17/2007 01:02AM
Hi,

When I try to use xregister with a list
of image sections listed in a
file, it outputs the results from just
the first input region and
lists the rest as INDEF. Is this
normal? It appears to work
correctly for one region, but
effectively ge...

4687

By: robsteele49

01/17/2007 01:02AM

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