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ds9 7.3.2 and regionsStarted by:kkwitter, 09/06/2015 01:38PM
Just downloaded ds9 7.3.2, and
discovered that regions do not show up.
This happens on multiple computers (Mac
OS X 10.9 and 10.10). "Show regions" is
selected (default), but no outline
remains after selecting a region.

Thanks.

1324

By: kkwitter

09/06/2015 02:22PM

Time stamp problemStarted by:fschweizer, 07/16/2010 10:31PM
Hi Mike,

IRAF (v2.14) on my Mac Pro XMP seems to
have a problem with time stamps
whenever some header update occurs
(e.g., in `hedit ... add+'). The
time associated with the FITS file is
then PST (standard time) instead
of PDT (daylight saving time) l...

1324

By: fschweizer

07/16/2010 10:31PM

IRAF package color v. May 7, 2002Started by:Guest, 06/22/2009 08:47PM
Hello,

I am looking for this package but
can't seem to find it anywhere. It
is required for Gemini IRAF v 1.9.1.
Does it still exist? The readme you
have in the extern directory on your ftp
site lists the latest version as being
3/14/96 - the...

1324

By: fitz

06/22/2009 08:47PM

SAOImage DS9 version 7.5 is now avail...Started by:joye, 12/29/2016 05:54PM
SAOImage DS9 version 7.5 is now
available for download at
http://ds9.si.edu/site/Download.html

New features

New Preference file support- allows
multiple preference files base on
version number
Improved CIAO regions file
compatibility
Improved FI...

1327

By: joye

12/29/2016 05:54PM

spectrophotometry with sbands or some...Started by:gmaravel, 06/11/2014 09:09PM
Hi all! I have Halpha and R imaging
(obtained with the ESO/WFI) and I want
to flux calibrate the sources we have
identified. For these we have a series
of exposures for spectrophotometric
standards. As far as the Halpha
standards I know that I have to c...

1327

By: gmaravel

06/13/2014 01:42PM

ximtool not picking WCSStarted by:massey, 10/15/2013 12:20PM
Since "tfinder" still isn't working
under 2.16, I've been using
astrometry.net to add WCS to my headers.
It's not as precise but it IS
automatic, and usually works.

However, it uses a gnomic projection
plus distortion term by default, and
even if t...

1327

By: massey

10/15/2013 02:00PM

Splot deb lending with Gaussians - Ou...Started by:cew24, 10/03/2016 07:57PM
Deblending spectral line with SPLOT and
the "d" command, followed by using the
"f" to read in a linelist.txt file and a
"g" for the fitting

The fits are done, the center, cont.,
flux, eqw. core, gfwhm are output to
splot.log file when on exits the d...

1330

By: valdes

10/12/2016 04:57PM

Geotran IssueStarted by:constant, 02/20/2016 03:39PM
Hi, All

I am using geomap and geotran to align
two images. The xshift and yshift which
obtained by geomap is less than 1 pixel.
But when I transform one of images to
match another, there is a shift which is
much larger than 1pixel in the resultant
im...

1330

By: constant

02/23/2016 08:14AM

display.frame.p_mode =Started by:Guest, 08/27/2010 02:47PM
Dear IRAF helpers,

i am running a very simple script that
display images, as they are read
one by one from an input file (see
script enclosed). For each new file
read at the display command, the script
prompts me for the display
frame. I did put dis...

1330

By: Guest

08/27/2010 02:47PM

Scombine changes dimensionStarted by:rohit, 03/31/2010 11:25PM
I have two sets of two files which I
combine to create two individual files.
I have been using SCOMBINE task for
this. It has worked for most expect
this. I do not understand why the task
is changing the dimensions. Here is what
the imeader command give...

1330

By: fitz

03/31/2010 11:25PM

Apall: Optimally extracted spectra do...Started by:stpjhj, 07/09/2014 07:15PM
Dear all,

I am trying to reduce a longslit
data(from SUBARU FOCAS, btw,) and I am
having some problem that I couldn't
understand.

When I invoke apall task with weight
option set to "none," resulting spectra
seems fine.
But if I set weight option ...

1332

By: valdes

07/25/2014 05:41PM

Feature Detection in Smoothed ImagesStarted by:fitz, 07/21/2013 09:08PM
[color=red:1368f64d54] [Moderator's
Note: Posted on user's behalf]
[/color:1368f64d54]

My purpose is to smooth an optical image
and check whether there is a source at
a ra&dec which is got from other
energy band.The source is near a
galaxy's cen...

1332

By: fitz

07/21/2013 09:08PM

speeding up nfit1dStarted by:Aquila, 11/30/2010 09:53AM
Hi

I've been using nfit1d to carry out fits
to galaxy light profiles (galprof
parameter), but I will most likely have
to carry out about 120,000 fits. Does
anyone know of how I can speed up this
process, say by telling Iraf to accept
the second iterati...

1333

By: Aquila

11/30/2010 09:53AM

segmentation violation in fitparamsStarted by:massey, 08/22/2016 07:14PM
I'm using fitparams,using 2.16.1 EXPORT
on a Mac and I'm getting a segmentation
violation. Here are my parameters:
observat= standobs List of
observations files
catalogs= nlandolt List of
standard catalog files
config = ...

1334

By: massey

08/22/2016 08:18PM

problem with interactive fitparamStarted by:fitz, 04/05/2017 04:10PM
[color=red][Moderator's Note: forwarded
from story submission][/color]

When I try to delete a point in fitting
photometry interactively in fitparams, I
put the cursor over the point and hit
the "d" key. The cursor jumps to another
star and deletes i...

1335

By: Gaba_p

05/11/2017 05:35PM

Difficulty with reidentifyStarted by:Patrick Watson, 02/28/2022 06:51AM
Hello from a lone IRAF user,
I have a spectrograph susceptible to
flexure caused by temperature changes
and gravity. The calibration lamp is
internal to the spectrograph and hence
any shift between calibration images can
be sheeted home to the spectrog...

1340

By: Patrick Watson

02/28/2022 06:51AM

Using fitpars in fxcorStarted by:sliss1, 10/07/2010 02:34AM
I am using fxcor to determine the radial
velocities of double lined spectroscopic
binary targets. Unfortunately, some of
the spectra are quite noisy. I would
like to use filtpars to filter out some
of the noise, but am not sure what
values to use for ...

1343

By: fitz

10/07/2010 02:34AM

Pixel Coordinates into Sky CoordinatesStarted by:zhengyi7, 09/30/2010 02:38PM
Hi All,

I'm fairly new to IRAF. Is there any
package in IRAF that I can use to
translate pixel coordinates into sky
coordinates (RA & DEC)? Any help
will be greatly appreciated. Thanks.

1347

By: fitz

09/30/2010 02:38PM

polyphot aperture area calculation wr...Started by:mboquien, 03/06/2010 12:08AM
Hello,

I have noticed that the area calculated
by the polyphot task gives a result
which is different than what is computed
manually. For instance for this polygon
IRAF gives 125.4778 and computing
manually i get 123.969.

741.34 747.41
748.38 748....

1347

By: fitz

03/06/2010 12:08AM

how to use adumpcatStarted by:jcadien1, 01/06/2015 02:55AM
I have iraf installed on my home
computer. I want to use adumpcat to get
sections of astrometric catalog for use
in finding coords of stars on
images.(very large images). I have tried
it but could not connect to online
catalogs. For example, the output ...

1352

By: fitz

01/13/2015 04:05AM

'Standard' task problemStarted by:marco.03, 02/08/2012 05:56PM
i have encountered an
ERROR: floating point divide by zero
when using the noao.onedspec.standard
task. I have traced the problem back to
the extinction curve file, which I have
created from the data found in table B.1
in this paper:[url]http://adsabs.ha...

1352

By: valdes

02/08/2012 05:56PM

objmasks on Multi-Extension mosaic im...Started by:hawcheng, 06/11/2010 03:30PM
Hi.

Trying to use objmasks on a
multi-extension fits file. But it won't
run. I can get it work fine when it's
just a plain fits file and not a MEF.
Very puzzled.

This is the output :

mscred> objmasks
List of images or MEF files
(BF_Leo_IV_I.095.O...

1354

By: valdes

06/11/2010 03:30PM

wcsctran and SIPStarted by:snd22, 03/30/2010 05:03PM
Hello,

I would like to use wcsctran (or an
equivalent task) to convert a list of
pixel coordinates on an image to a list
of RA/DEC sky coordinates using the WCS
defined in the image header. However, I
also need the conversion to respect the
SIP distor...

1355

By: fitz

03/30/2010 05:03PM

Phot with lists HelpStarted by:astrojake, 02/23/2011 05:40AM
Hello,
I'm doing aperture photometry with phot
on iraf. I want to do the following:

phot <images> <coordfile>
fwhm=<""> ann=<"">
dann=<""> aper=<"">

I know it is possible to do this with a
list of images with ll the...

1357

By: fitz

02/23/2011 05:40AM

Bug in apextractStarted by:jturner, 02/06/2013 12:04AM
Hi Mike & Frank,

I'd like to report a bug in aptrace that
was causing one of our tests to crash
under 2.16.

At L238 and 302 of aptrace.x, the
variables "line1" and "line2" are used
without being initialized. In our
testing, they were starting off...

1361

By: jturner

02/06/2013 12:04AM

dohydra bugStarted by:massey, 02/08/2011 03:17AM
dohydra appears to have an issue when
concatenating the "flat" name with the
"object" name. If the object name is
only 6 characters long (ex: obj123),
everything works fine and a file
flatobj123.ms is created. However, if
the object name is 7 characters...

1363

By: valdes

02/08/2011 03:17AM

problem with installing FOCASRED packageStarted by:jks, 03/20/2014 09:37AM
Dear you?..

First of all, I'm sorry for terrible
English.

I'm trying to reduce observation data
which was taken with spectroscopy
(Subaru, FOCAS)
And I tried to do distortion correction
for my data.
the task "distcalib" didn't work on Mac
(e...

1366

By: jks

05/21/2014 02:38PM

Ellipse - Memory has been CorruptedStarted by:katie7, 08/12/2009 02:11AM
Hi,

I am using ellipse (from stsdas) in the
interactive mode with SAOimage ds9.
When ellipse cannot automatically find
the centroid of the object, ellipse
prompts for an approximate guess. When
I give ellipse this guess, it proceeds
to think for awhi...

1378

By: fitz

08/12/2009 02:11AM

ccmap/xy2sky problemsStarted by:jtg0819, 02/22/2011 06:42PM
I am doing photometry on 90-300 stars
per frame. My intent was to use the
ccmap/xy2sky packages to create a
coordinate list of these stars and then
use those coordinates to match my stars
to themselves in the USNO database.
After painstakingly creating ...

1379

By: valdes

02/22/2011 06:42PM

from counts to wavelength????Started by:Sparkles, 09/17/2010 03:29PM
Hi Iraf Gods,

I'm really new to Iraf (on placement),
and having some problems. I'm working on
a _x2d file and trying to extract the
spectra using apall, getting a plot and
everything's fine. However I need the
x-axis in terms of wavelengths not
counts,...

1382

By: fitz

09/17/2010 03:29PM

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