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nheditStarted by:cosmologist, 12/23/2010 05:19PM
Hi,

I am looking in images.imutil and I
can't find the nhedit task...
when I type help nhedit, I get the error
message that no help for nhedit is
available. Is there a way to just get
that specific task (although everything
else in the imutil package ...

6016

By: fitz

12/23/2010 05:19PM

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...

5985

By:

03/21/2009 05:58AM

S/N for spectraStarted by:ozbasturk, 05/15/2007 10:47PM
Hi,

I'm working on some spectra both slit
and echelle. I've applied all the
reduction steps (bias-dark-flat
correction, extraction, scattered light
correction etc. and wavelength
calibration) except for flux calibration
which I didn't need to. My probl...

5980

By: ozbasturk

05/15/2007 10:47PM

mscimage errorStarted by:joshw, 02/23/2007 10:07PM
I'm trying to use mscimage on single
extension images to project each file
onto a common projection. However, I'm
getting the error:

ms> mscimage @list_Perseus_H2
@list_Perseus_H2_rescaled
wcssource=parameters rotation=0
scale=1.0 ra=3:29:02 dec=31...

5972

By: valdes

02/23/2007 10:07PM

imexamStarted by:jgallag3, 07/07/2008 10:53PM
While trying to run the
image-subtraction based photometry
routine mkdifflc.cl (external), I was
given the following error ...

ERROR: floating point invalid operation
"imexam (input=imname,frame=1, >>
'junk')"
line 78: ./mkdifflc.cl
call...

5967

By: valdes

07/07/2008 10:53PM

longslit packageStarted by:bonita, 06/27/2006 02:26PM
Hi,

I've encountered some problem in using
the TWODSPEC.LONGSLIT.FITCOORDS
task. I'm using IRAF v2.12.2 on
linux/Fedora Core 4.

I've run the IDENTIFY and REIDENTIFY
tasks in determining the dispersion
solution every 10 lines. However, when
trying to...

5921

By: fitz

06/27/2006 02:26PM

help on ASTHEDITStarted by:china_108, 03/01/2009 06:12AM
I read this post
https://iraf.net/phpBB2/viewtopic.php?p=145225
but it doesn't work for my data.

When I type in

st = mst (@'date-obs', ut, obsdb ("lco",
"longitude"))

it says
** Syntax error
**: st = mst (@"date-obs", ut, obsdb
("lco", "longitude")...

5904

By: china_108

03/01/2009 06:12AM

how to use imexam with ds9?Started by:Arp, 10/28/2009 01:37PM
Hello!

Im trying for the first time some
photometry with iraf and ds9. I started
ds9, and then I startet imexam and chose
the correct frame buffer.
But then nothing happens. Sometimes the
cursor in DS9 changes, it blinks between
a black annulus, and a ...

5872

By: fitz

10/28/2009 01:37PM

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

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

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...

5756

By: jchavez

02/22/2009 12:46PM

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...

5752

By: cong

05/21/2008 06:45AM

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!

5745

By: fitz

06/15/2006 05:59PM

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...

5709

By: fitz

02/10/2009 04:49PM

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...

5685

By: massey

04/28/2006 08:14PM

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

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...

5663

By: raybutler

04/21/2008 01:39AM

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....

5650

By: jay

05/22/2007 08:07AM

"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

5627

By: Edward Olszewski

02/13/2006 06:32PM

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...

5586

By: valdes

04/06/2006 05:07PM

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...

5545

By: Hooloovoo

05/30/2006 10:57AM

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[...

5523

By: fitz

11/15/2010 09:26PM

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...

5507

By: malte

06/07/2007 02:49PM

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...

5465

By:

04/13/2006 11:07PM

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...

5463

By: JediWill

06/29/2006 09:28PM

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

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

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...

5430

By: Acrobat

03/08/2007 01:21PM

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 ...

5415

By:

04/14/2006 06:08PM

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

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