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Last Post

the unit of splotStarted by:haha, 11/17/2013 02:53PM
Generall the two axis of a spectrum
displayed by splot are wavlength and
flux.The y axis are like
1.15e-18,1.25e-18...

Forgive my English.After reading the
help page of splot,I am very
confused.The unit of y axis is
ergs/cm2/sec/hz or ergs/cm2/sec/...

2541

By: haha

11/20/2013 05:50AM

Scombine ERROR: floating point invali...Started by:morrisonss, 04/19/2013 02:26PM
I tried running the task scombine using
the command:
[code:1:f1c3c227be]scombine
input=*_H*L_2.fits
output=TXS0827_HL_2.fits w1=
3776892.899268 dw=8.713374e-01
combine=average
reject=none[/code:1:f1c3c227be]

When I do I get the error:

[code:1:f1c3c227...

4047

By: morrisonss

04/19/2013 02:26PM

gsflat errorStarted by:donzelli, 12/22/2011 03:30PM
Hi, I've installed IRAF 2.14.1 on a
macbook with OSX 10.7.2.
I also installed Gemini 1.1.beta2
together with nmisc, gmisc and fitsutil.
After the struggle, I finally was able
to run the first routine: gsflat.
But my happiness lasted short since I
got th...

2285

By: emma

12/22/2011 03:30PM

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

GPREPAREStarted by:donzelli, 05/17/2011 11:42AM
Hi,

I'm trying to reduce GMOS data and I'm
using GEMINI package V 1.10
under IRAF V 2.13-BETA2.

After runing the GPREPARE routine I have
the following message:

Input list = @objects.lis
Output list =
Output prefix = gt
Raw path =
Add MDF ...

2763

By: donzelli

05/17/2011 11:42AM

Sky flatsStarted by:cosmologist, 03/01/2011 01:30AM
In the manual I am following it says
that skyflats when combined should be
scaled by "mode", but my skyflats have
different exposure times, can I scale
them by exposure time instead? (both
exposure time AND mode are different how
do I deal with such a c...

4068

By: dschumac

03/01/2011 01:30AM

scale in ZerocombineStarted by:cosmologist, 02/21/2011 06:38PM
I am looking in the help page for
zerocombine, and I have a question about
the "scale" option:

scale = "none"
(none|mode|median|mean|exposure)
Multiplicative image scaling to be
applied. The choices are none, scale by
the mode, median, or mean of t...

3348

By: AnTaR3s

02/21/2011 06:38PM

"Panic" errorStarted by:cosmologist, 01/27/2011 09:31PM
I get this error message, any idea what
this means?

[code:1:0d4be85406]

PANIC in
`/Users/IRAF/iraf/iraf/bin.macintel/x_system.e':
Write to IPC with no reader
ERROR: IRAF Main: command syntax
error
"copy (
cal_dir//dbname//"...

3161

By: fitz

01/27/2011 09:31PM

Segmentation violation from SCOMBINEStarted by:drupke, 11/30/2010 10:02PM
I am trying to combine some spectra, and
I am getting unpredictable results,
sometimes with "segmentation
violations," sometimes not. For
instance, the first of the following
commands works, but not the second:

ecl> scombine
1xtrno04,1xtrno05,1xtrn...

2689

By: fitz

11/30/2010 10:02PM

problems with gemheditStarted by:carvano, 10/05/2010 07:58PM
I am having problems with the gemini
task gemhedit. Whenever I try to use it,
I get:

1) if I try to add an keyword:
_______________________________
ERROR: Cannot open file (NULL)
"delete-, verify-, show-)"
line 68: gemtools$gemhedit.cl
cal...

2769

By: fitz

10/05/2010 07:58PM

mkconfig problem in photcalStarted by:Chrissyo, 09/08/2010 03:29PM
Hi guys,

I'm having some trouble getting mkconfig
to work in photcal. I'm getting the
following error:

** Beginning of compilation **

** Warning near line 2:
The observation section is undefined
syntax error
** Error near line 2:
'annot continue p...

2986

By: fitz

09/08/2010 03:29PM

fitcoords: bus errorStarted by:margaret, 07/06/2010 06:54PM
Hi,

I've executed identify and reidentify on
a 1D spectrum image, and the resulting
database file looks normal in
content/structure compared to previous
successful runs.

However, when I run fitcoords on the
image and database file, e.g.,
fitcoords im...

2482

By: AleC

07/06/2010 06:54PM

bug in the GROW parameter in task noa...Started by:eduardodelpeloso, 06/17/2010 01:45PM
I believe there is bug when you set the
'grow' parameter to values greater than
zero in the task
noao.onedspec.continuum. Does anyone
have any info on this?

Here is what I believe the problem is. I
have tried normalizing a spectrum with
func=legendre, ...

2748

By: fitz

06/17/2010 01:45PM

problem in psf (in daophot)Started by:nakisa, 02/18/2010 10:41AM
Hello
While I use psf interactively , after
selecting sources and pressing keystroke
"a", suddenly it stopps and return me
this error :

4 PSF stars read from new.fits.pst.1

Killing IRAF task `psf'
Exception in Tkinter callback
Traceback (most recent ...

3200

By: nakisa

02/18/2010 10:41AM

immatch invalid pointerStarted by:kanaan, 10/06/2009 10:12PM
On suse 11.0 (or 11.1) and iraf 2.14.1

I reinstalled ctio, recompiling from
scratch. When I run immatch:

(I would appreciate any suggestions on
how to fix this :-)

*** gli...

3523

By: fitz

10/06/2009 10:12PM

help with nmisc packageStarted by:adameye, 08/20/2009 04:01PM
when I tested an image for my nmisc
package, I got the following errors:
anybody know why? thanks
[i:836d90e7da]
ecl> nmisc
ccdmask kpnofocus
psfmeasure starfocus xregister
fixpix newimexamine
specfocus text2m...

3294

By: fitz

08/20/2009 04:01PM

origin of the geomap rotationStarted by:ajtaka, 06/29/2009 01:33PM
Hi
I have different observation times have
small rotational differences. I allso
want to minimize noise, so i want to
combine all images at one time to get
best possible median (iam reducing ir
data) for combining. so I combine all
sets first separately...

3721

By: valdes

06/29/2009 01:33PM

IRAF in Cygwin: imcombine problemStarted by:delta_kuadrant, 06/21/2009 02:37PM
Hello All,
I have a problem here,
whenever I execute 'imcombine' task on
iraf under cygwin, there's an error
message: ERROR: parameter 'imcmb' not
found
and image combining failed for sure
any suggestion?

regards,

PJ

4353

By: delta_kuadrant

06/21/2009 02:37PM

DOHYDRA data reduction problemStarted by:Guest, 03/23/2009 07:54PM
Hi.
I am having a problem with reducing
Hydra data with the DOHYDRA script and
was wondering where to get help.
In summary: I had it working fine using
IRAF 2.11.3, however I had a hard drive
crash and have not been able to
get the same results for d...

3663

By: fitz

03/23/2009 07:54PM

Questions about read out noise and gainStarted by:lina, 03/26/2009 07:03AM
Hi, everyone

During my work with IRAF, I find that

In Zerocombine or Flatcombine task,
there are:
(rdnoise= ) ccdclip: CCD
readout noise (electrons)
(gain = ) ccdclip: CCD
gain (electrons/DN)

But in Apall task, there a...

4207

By: valdes

03/26/2009 07:03AM

How to copy fits binary tableStarted by:, 03/23/2009 06:18AM
Dear all,

I want to copy a fits binary table made
up of image header and spectral data. If
I do:
[code:1:0096a13281]
ttools> cp filename.fit test1
[/code:1:0096a13281]
It copies only the table entries without
the image header.
If I do:
[code:1:0096a...

4002

By:

03/23/2009 06:18AM

shift and magnifyStarted by:dbrenner, 02/13/2009 08:16PM
I want to shift and then demagnify an
image. The final size should be the same
size as the original and the final
center should be the same center as in
the shifted image.

Any help would be appreciated.

Thanks.

3322

By: dbrenner

02/13/2009 08:16PM

RVSAO and libsmw.aStarted by:enthusediswear, 01/16/2009 08:48PM
I'm trying to compile the RVSAO extern,
and it fails to link to libsmw.a:

[code:1:06443042c0]Library librv.a is up
to date
check file `librv.a' into `bin'
xc -c -w -p noao x_rvsao.x
x_rvsao.x:
sys_runtask:
x_rvsao.f:
sysruk:
move ...

3638

By: enthusediswear

01/16/2009 08:48PM

flux calbrate spectraStarted by:, 08/14/2008 04:56PM
Hi,

I want to flux-calibrate spectra using
noao.imred.kpnoslit package. When I look
at onedstds$README, I only see
ctioextinct.dat and kpnoextinct.dat
files available. I didn't observe at
either ctio/kpno, but my standard star
is in the onedstd$spec16...

4131

By:

08/14/2008 04:56PM

another problem with DS9 v5.2 (5.2-2,...Started by:vall, 06/05/2008 08:48AM
Hello,

I have a problem with DS9 v5.2 (on FC9).
When I display an image form IRAF, the
scale menu is no longer disabled (it was
disabled until v5.1), but when I try to
change the image scaling, it takes
forever (and lots of memory and CPU
resources) an...

4581

By: fitz

06/05/2008 08:48AM

xc: Command not found.Started by:fsidoli, 05/29/2008 11:06AM
Hi there,

I'm trying to run a program in/outside
of IRAF that use the portable IRAF
compile/link utility, 'xc'. I can see
that I have the xc.e installed on my
system under
'/iraf/iraf/unix/bin.redhat/xc.e' and
that it seems to be listed under the
softo...

4555

By: fsidoli

05/29/2008 11:06AM

rmfringe,irmfringeStarted by:cody, 04/28/2008 11:26PM
Hi,
I'm having problems removing fringes
from my images. I have done all the
standard procedures, including removing
the background on scales larger than the
fringes and masking out the objects. I
made a fringe flat from a large number
of images (60), ...

6844

By: gail

04/28/2008 11:26PM

ccfind segfaults with ZPN projectionStarted by:evert, 01/23/2008 12:07PM
I get the following segmentation fault
with ccfind when using it on an image
with a ZPN projection:

Input File: obj.coords Output File:
new.coords
Image: wcstest2.fits Wcs:
Insystem: j2000 Coordinates: equatorial
FK5
Equinox: J2000.000 Epoc...

4281

By: fitz

01/23/2008 12:07PM

Problems with implotStarted by:getulio, 08/02/2007 02:06PM
hello everyone,

my iraf is installed on a pc running
slackware 11. i was trying to use the
command
[b:6c4119ff29]implot[/b:6c4119ff29]
sugested on second exercise of tutorials
and when i execute the command lots of
codes appear, the terminal stops and ...

6141

By: fitz

08/02/2007 02:06PM

Biassec and trimsec ccdproc errorStarted by:FSBoyden, 06/27/2007 01:14PM
Hi all

Hope you can help me on this one.

I have the Biassec and Trimsec defined
in the fits headers of my data. Example:

[code:1:78359e8fd8]
BIAS_001.fits[385,576][ushort]:
Bias
No bad pixels, min=0., max=0.
(old)
Line sto...

11464

By: FSBoyden

06/27/2007 01:14PM

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