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reidentify - why does it find bogus l...Started by:gfuresz, 06/06/2006 06:24PM
Hi,

I try to use reidentify in the specred
package to automatically identify ThAr
emission lines based on a
"master-reference" file. I have to do it
this way since the MOS image has 240
spectra in it, with a zig-zag pattern
wavelength shift between ape... 		 
2757 1
By: valdes
06/06/2006 06:24PM
Normal Topic
Multi-amp ccd reductionsStarted by:massey, 06/11/2006 09:20PM
Mike and/or Frank----

I'm trying to reduce some CTIO 0.9-m ccd
images. These were taken with
4-amplifier readouts, and each quadrant
needs its own bias removal, etc.
There used to be an IRAF task,
arcon.quadproc which handled these data,
but I can't f... 		 
3338 2
By: massey
06/11/2006 09:20PM
Normal Topic
bug in quadred.ccdprocStarted by:massey, 06/12/2006 03:32AM
If you feed qaudred.ccdproc a bunch of
images with "noproc+" and
quadred.backup=Raw/ (say), then the
images in the main directory
are turned from integers to real, and
the old versions of the images are
dumped into Raw, despite the "list
processing step... 		 
2793 1
By: valdes
06/12/2006 03:32AM
Normal Topic
Saving color images with tvmark markingsStarted by:Guest, 06/12/2006 12:46PM
Dear Sir,

I am using the IRAF/tvmark task to mark
a few objects with different
colors. When giving this task an output
file the image is saved but, the
color markings are converted to
grayscale.
Is there a way to save the image with
the actual markings... 		 
2344 1
By: fitz
06/12/2006 12:46PM
Normal Topic
"Memory has been corrupted" error on ...Started by:Guest, 06/12/2006 06:08PM
Hi Iraf folks,

Any suggestions on how to beat this
problem? When I run this command:

crosscor
input1=j8rq22maq_single_sci.fits
input2=j8rq22maq_single_sci.fits
output=xcor_j8rq22maq_j8rq22maq.fits
coord_shift=no center=yes pad=no

I get this output... 		 
2816 1
By: fitz
06/12/2006 06:08PM
Normal Topic
Question regarding PSFMeasure commandStarted by:Guest, 06/13/2006 06:04PM
To Whom it May Concern, I am currently
using the psfmeasure command from the
NOAO Obsutil package to compute FWHM's
for multiple stars in multiple images.
(I am using the extracted FWHM's to
adjust the aperture radius for
photometry, attempting to comp... 		 
2675 1
By: valdes
06/13/2006 06:04PM
Normal Topic
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... 		 
2272 1
By: fitz
06/13/2006 09:50PM
Normal Topic
Group ImagesStarted by:Guest, 06/15/2006 02:36PM
I am working on some HST data and am
using iraf to reduce the data and I have
a couple of questions:

1. Is there a task or command that I can
use to make a single image consisting of
4 groups from 4 different images? I have
4 seperate images of the 4 c... 		 
2375 2
By: Guest
06/15/2006 02:36PM
Normal Topic
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 6
By: orsola
06/15/2006 03:24PM
Normal Topic
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 1
By: fitz
06/15/2006 05:59PM
Normal Topic
adding noise to imagesStarted by:orsola, 06/15/2006 08:15PM
Hello -

I have obtained arc spectra using 300
sec exposures and I want to know how
much I can reduce this rather long
exposure time and still get the same
wavelength calibration precision.

I presume I can add noise with mknoise
(although I have not y... 		 
3706 1
By: valdes
06/15/2006 08:15PM
Normal Topic
problems with installation of RVSAOStarted by:olivia, 06/16/2006 10:38AM
Hello,

I'm trying to install RVSAO package.
I've followed the instructions to the
letter, but when I do

[b:4ecafc95ee]cl> mkpkg update
>& spool[/b:4ecafc95ee]

which is supposed to install the
package, the spool file comes out full
of warnin... 		 
8227 7
By: knine
06/16/2006 10:38AM
Normal Topic
imcombineStarted by:Guest, 06/19/2006 04:36AM
Dear Iraf expert,

I happened to notice that the option
"scale" in imcombine does not
produce the correct sigma image when the
input images have negative
counts. Using scale=none, median or mean
I always obtain the same result
as sigma image. The sam... 		 
11177 10
By: pskoda
06/19/2006 04:36AM
Normal Topic
Calling CCDPROC from a procedure scriptStarted by:bpohl, 06/20/2006 09:30PM
Greetings and apologies if this question
has already been asked and answered.
i'm trying to write a procedure script
to automate some basic CCD processing
tasks. I call ccdproc from within the
script, but it seems to get confused
when I sepcify the ze... 		 
3229 2
By: bpohl
06/20/2006 09:30PM
Normal Topic
gmos gdisplayStarted by:ewehner, 06/21/2006 12:14AM
Hi,

I'm having trouble displaying gmos
imaging fits files using gdisplay. When
I set stdimage=imt4096 and use mscimage
with fill+ it displays the same MEFs
just fine, but when I set
stdimage=imtgmos and use gdisplay,
nothing shows up in ds9 and I get ... 		 
3855 2
By: ewehner
06/21/2006 12:14AM
Normal Topic
display command error messageStarted by:Guest, 06/22/2006 11:21PM
Iraf,

I've just installed iraf & DS9 on a
Linux/Redhat/Fedora machine.
Everything seems to be working just fine
(DS9 running), except "display".
When I issue a >display "image file"
command I get the following error
message;

ERROR: Cannot open ... 		 
2244 1
By: fitz
06/22/2006 11:21PM
Normal Topic
linebias: starting pixel no longer Im...Started by:dvbowen, 06/23/2006 03:14AM
So I've been slogging over a hot laptop
all night reducing spectra, when I
make a nasty mistake and delete all the
final reductions (duh!). Not to
worry... I can retrace my steps and
re-extract the spectra. However,
suddenly,
I find that the behaviour o... 		 
3363 3
By: fitz
06/23/2006 03:14AM
Normal Topic
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 2
By: m223
06/23/2006 01:32PM
Normal Topic
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... 		 
5924 5
By: fitz
06/27/2006 02:26PM
Normal Topic
Round off problem in heditStarted by:massey, 06/28/2006 01:23AM
Hi, Mike et al---

I have an image that has astrometric
parameters that were added via tfinder,
specifically numbers like:

CRVAL1 = 0.349583333333341
CRVAL2 = -15.295722222222
CRPIX1 = 1079.04400338829
CRPIX2 = 1242.12076751727
CD1_1... 		 
3126 1
By: fitz
06/28/2006 01:23AM
Normal Topic
finder/tfinder questionStarted by:Guest, 06/28/2006 02:53AM
Hi Phil,

> But, here's my question for you.
There are LOTS of USNOB stars on
> the frame, and I can easily
generate
> a coordinate list
> 19:12:12.321 +12:12:12.03
> 19:12.13.123 +12:10:12.23
> etc
> of stars that should be on o... 		 
2366 0
By: Guest
06/28/2006 02:53AM
Normal Topic
asthedit problemStarted by:JediWill, 06/28/2006 08:48PM
Hi everybody,

I am trying to update the headers of my
image files with asthedit. I am using a
.cmds file. The problem I am having is
that I am getting a syntax error when I
try to run it. I have V2.13 installed.
The weird thing is that when I use a
sch... 		 
5059 5
By: fitz
06/28/2006 08:48PM
Normal Topic
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... 		 
5466 6
By: JediWill
06/29/2006 09:28PM
Normal Topic
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... 		 
2958 1
By: fitz
06/30/2006 02:08AM
Normal Topic
I have some problem with response taskStarted by:Guest, 06/30/2006 03:40PM
Hello,

I have some problem with response task.

I set parameters for response:

PACKAGE = longslit
TASK = response

calibrat= FlatS.fits Longslit
calibration images
normaliz= FlatS.fits
Normalization spectrum images
respon... 		 
2282 1
By: valdes
06/30/2006 03:40PM
Normal Topic
question about astrometry and finderStarted by:Guest, 07/01/2006 12:42AM
Hi Deidre,
[quote:33afddf059]If I have a plate
solution from an astrometry program
outside of IRAF, is there some way to
put this info into the header of an
image so that I can have RA,DEC readout
in ximtool? Phil gave me an astrometry
fortran program a... 		 
2343 0
By: Guest
07/01/2006 12:42AM
Normal Topic
MSCMATCH FITS header outputStarted by:Guest, 07/02/2006 12:46PM
Hiya,
We need to re-examine in detail a
previous astrometric
solution derived using mscmatch on
4m-MOSAIC images.
We have no detailed record of the fit
solution
or number of stars used, but
the FITS header in the final merged
image is

MSCCMATC= 'Jul ... 		 
3024 2
By: valdes
07/02/2006 12:46PM
Normal Topic
SOS!!!! - problem with response taskStarted by:danila, 07/03/2006 11:46AM
Hello everybody,

Please, help.

I have some problem with response task.
This problem has already
worry me. :(

The heart of the problem in few words:


I set parameters for response:

PACKAGE = longslit
TASK = response

calibrat= Fl... 		 
6870 9
By: danila
07/03/2006 11:46AM
Normal Topic
Cosmic RaysStarted by:Nishkin, 07/04/2006 03:03PM
Hi all,
I seem to have a problem when I
want to remove cosmic ray. I use the
task cosmicrays but it seems not the
remove much...I do not run the task
interactively since I do not understand
much what to do in there.
I know they are cosmicrays and... 		 
2716 1
By: fitz
07/04/2006 03:03PM
Normal Topic
igi questionStarted by:turnmeintosnow, 07/07/2006 07:53PM
I know this is probably a silly question
but I'm kind of new to iraf and igi and
I'm trying to late out pairs of pictures
(one from ACS and one from Subaru) next
to each other and have something like a
6x6 setup of pairs of pics (so 36 total
on the page... 		 
2372 1
By: fitz
07/07/2006 07:53PM
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