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CCTRANStarted by:donzelli, 06/22/2015 08:14PM
Hi, I've have already the solution given
by the task CCMAP and I wanted to use
it to transform (x,y) pixels to ra and
dec coordinates. So in the CCTRAN
parameter
database I write the name of the
database written by the CCMAP task.
The result is stran...

1102

By: donzelli

06/25/2015 10:46AM

Problems with ESOHDR and/or MSCRED?Started by:astroroger, 07/01/2015 06:10PM
Hello - I have some images from the ESO
WFI 2.2m and I'm trying to run esohdr to
convert the headers into standard .fits
format as needed for mosaic processing.
When I try to run esohdr on a list of
(unprocessed) .fits images, the
following error occur...

1001

By: astroroger

07/01/2015 06:10PM

wcs using imeaxm and ds9Started by:jcadien1, 06/11/2013 11:18PM
I have images with wcs in header
computed by imwcs(from wsctools). When I
load an image into ds9 directly the wcs
info is displayed, and the "display fits
header" shows the entire header.
However, when I run "imexam filename
wcs=world" from the ecl, th...

2434

By: b1quint

07/01/2015 09:43PM

a problem with daophotStarted by:wuxiaohan, 07/06/2015 09:22AM
Hello,
I want to make a CMD for NGC419. I went
through daofind, phot, psf, and allstar.
Then I matched the stars using the Linux
program "match". But when I plotted the
CMD with the Matlab function scatter, it
looked very strange. When I magnified
the ...

877

By: wuxiaohan

07/06/2015 09:22AM

using pdmStarted by:jcadien1, 07/08/2015 05:37PM
I am trying to use the IRAF pdm period
finder. I have begun by getting data on
a known variable, with cataloged period
of 86.5 days. Pdm seems to find a
period, regardless of the min/max range
I choose. The period is always between
the min/max. So, if I...

1582

By: jcadien1

07/09/2015 09:52PM

Problem using the RVSAO tasksStarted by:juanespejo0313, 08/02/2015 08:56PM
Hi, I have the 2.16 version of IRAF and
the version 2.8.1 of RVSAO installed. (I
use linux 64 bits)

All the tasks in IRAF are working
properly except for the RVSAO tasks,
when even I try to use them, I get the
following error message:

ERROR: Canno...

1222

By: fitz

08/03/2015 08:04PM

mscred ccdproc readaxis parameterStarted by:paulsell, 08/07/2015 04:59PM
I am using ccdproc to overscan-correct
and trim my images. I am using the
mscred package instead of imred package
because I am dealing with
multi-extension fits files.

Is there a way to set the "readaxis"
parameter to "column" instead of "line"?
...

1401

By: paulsell

08/11/2015 10:57PM

MSCIMAGE issueStarted by:fitz, 06/17/2015 09:49PM
[color=red][Moderator's Note: Forwarded
from story submission][/color]

I've been trying to run MSCIMAGE on an
image file and keep getting an
segmentation violation.

ERROR: segmentation violation\r\n
"sigscale=0.1, pclip=-0.5, grow=0., >
"dev$nul...

2147

By: prasadh

08/16/2015 02:03PM

Image resample / software binningStarted by:Santiago, 08/18/2015 10:38PM
Hi, i'm trying to resample images to
half size in a way that 4 pixels sum to
1. This is software binninb 2x2 images.
Is MAGNIFY the correcto way to get this
done? i have interpolation set to linear
and factor to 0.5, will this sum 4
pixels into 1? If no...

1450

By: fitz

08/18/2015 10:42PM

nproto.objmasks - segmentation violationStarted by:claudiarodrigues, 08/07/2015 07:46PM
Dear,

I am getting a segmentation violation
when running objmasks. See below.

nproto> objmasks
List of images or MEF files (teste):
List of output object masks (omt):
ACE: NOAO/IRAF V2.16.1
claudia@halley.das.inpe.br Fri 14:27:20
07-Aug-2015 ...

1300

By: claudiarodrigues

08/20/2015 09:00PM

Changing size of images in Started by:suma99, 08/24/2015 05:52PM
Hello!

I am trying to change the size of the
simulated image through the "gallist"
and "mkobjects" functions in the
"artdata" package. The image always come
out to be 512 x 512 in size, but I would
like the images to be bigger or smaller
sometimes. T...

1853

By: suma99

08/24/2015 06:03PM

Pixel scale in mkobjectsStarted by:suma99, 08/24/2015 07:41PM
Hello,

I am wondering how to find the pixel
scale from a simulated image of galaxies
made on "gallist" and "mkobjects". I had
done:
artdata> gallist galaxy.dat
Number of galaxies in the output list
(30): 30
artdata> mkobjects galaxy
obj=galaxy.dat...

1112

By: fitz

08/24/2015 10:27PM

ds9 errorStarted by:donzelli, 08/26/2015 03:10PM
Hi,
I installed ds9.linux64.7.3.2 under
Fedora 22 (64-bit), and when I run ds9 I
get:

./ds9: error while loading shared
libraries: libXss.so.1: cannot open
shared object file: No such file or
directory

However, the library is already
installed in...

1639

By: donzelli

08/26/2015 06:18PM

Create spiral arms through mkobjectsStarted by:suma99, 08/26/2015 09:46PM
Is it possible to simulate an image
through GALLIST and MKOBJECTS that has
spiral arms? This is what I have tried:

artdata> gallist galaxy1.dat egal=0
xmax=1000 xmin=0 ymax=1000 ymin=0
Number of galaxies in the output list
(20): 500
artdata> mkobj...

969

By: fitz

08/27/2015 12:04AM

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

Dohydra looking for the wrong .msStarted by:kcooke, 09/11/2015 03:13PM
I'm currently attempting to use the IRAF
task dohydra in order to reduce
SparsePak data. The task is able to get
past the flat field fitting, but
encounters an error. I believe this
occurs when arcrefs gives a faulty
extension. The task looks for a ....

1920

By: kcooke

09/14/2015 02:03PM

How to use Reidentify and fitcoordsStarted by:kirankumar, 09/17/2015 02:45PM
Hi All,

I am trying to reduce longslit spectral
data. I am new to it.

I used combine task to combine Flat
Frames to create MasterFlat and Arc
Frame to create MasterArc. I want to use
identify, reidentify, and fitcoord
tasks.

I placed NodA and ...

803

By: kirankumar

09/17/2015 02:45PM

WHT LIRIS Data Reduction PacakgeStarted by:kirankumar, 09/15/2015 03:07PM
Hi,

Did anyone use the LIRIS data reduction
package?

Regards,
Kiran

1160

By: fitz

09/17/2015 07:10PM

xgterm crashing when using commands l...Started by:evantuck, 02/13/2015 02:13PM
I had iraf working fine on my MacBook
Pro until I updated to Yosemite. In a
previous post I received help in getting
my login.cl file to work properly. Now
however, I'm having issues displaying
spectra. Whenever I run a command like
splot xgterm cras...

2568

By: paulartcoelho

09/21/2015 08:11PM

n2gaussfit not fitting all parameters...Started by:ltacconi, 06/29/2010 11:45AM
Perhaps I'm doing something stupid, but
I'm having a problem with n2gaussfit in
that it doesn't seem to fit all the
parameters. Specifically, it seems that
FWHM, Ellip., and Theta remain constant
for all fitting that I do. Below you
will find my param...

2018

By: sscibell

09/28/2015 11:42PM

nfit1d errorStarted by:donzelli, 09/29/2015 11:15AM
Hi,

I'm trying to use nfit1d with a
particular table and get the following
message:

ERROR: Table `merge.tab,' does not exist
or cannot be opened.

However, I can tedit the table and all
the columns are there. Moreover, if I
use 'isoplot', 'isopa...

975

By: fitz

09/29/2015 04:51PM

wspectext and list filesStarted by:GalisBG, 10/15/2015 03:54PM
Hi there,

I'm trying to export as text files a lot
of reduced 1d spectra distributed in
different folders using wspectext with
list files for input and output
containing the full path of the fits and
txt files

It works well with reading this list ...

1775

By: GalisBG

10/22/2015 10:09AM

How background is calculated using Started by:xyz, 11/02/2015 08:24AM
How background is calculated using
"[b]centroid[/b]" option in
"[b]fitskypars[/b]" sub-task in
"[b]phot[/b]" task ?

I have read IRAF help page. But it did
not describe the details.

Help says: "Compute the intensity
weighted mean of the sky ...

924

By: fitz

11/04/2015 06:28AM

IRAF question concerning sbandsStarted by:valdes, 11/05/2015 07:01PM
Hello,

I have a student using IRAF to compute
photometry in various bands from the
spectrum of an object. She has an
optical spectrum and is trying to
compute the color (B-V) from the
spectrum using the Johnson filter
response. She has a file with ...

978

By: valdes

11/05/2015 07:01PM

ellipse and ds9Started by:donzelli, 11/10/2015 04:20PM
Hi,
I'm running IRAF V2.16.1 and STSDAS
V3.17 on a PC with Fedora 22 and when I
try to use ellipse ds9 turns completely
white.
In other words, I cannot see the image
in the interactive mode. I have no
problems with the display routine and
with the ell...

953

By: fitz

11/16/2015 05:45PM

Installation of ds9 on IRAFStarted by:Medinaja2, 11/16/2015 07:47PM
Hello everyone. I am trying to install
ds9 on IRAF. I have a pc, OS Windows 10,
but I am running IRAF in Fedora on a
virtual computer on my laptop. I believe
it's called virtual box. But anyway, in
fedora I use Mozilla to go to the ds9
website and downl...

2972

By: fitz

11/16/2015 08:04PM

Problems with Standard and Calibrate ...Started by:Marckelson, 11/20/2015 06:58PM
Hi there,

I'm actually working on xshooter
long-slit and ifu data. Regarding to
long-slit, everything is done by the
pipeline provided by ESO, but ifu data
is just reduced, ESO doesn't provide a
recipe to perform the ifu flux
calibration so I thought...

1227

By: Marckelson

11/20/2015 06:58PM

SAOImage DS9 version 7.4 is now avail...Started by:joye, 12/21/2015 09:08PM
SAOImage DS9 version 7.4 is now
available for download at
http://ds9.si.edu/site/Download.html .
New features include Blocking, 3D Axes
Reorder, and Performance Improvements.

1219

By: joye

12/21/2015 09:08PM

convert FITS file to ASCII table with...Started by:iraf_astro, 12/27/2015 08:16PM
Hi,

I have searched through IRAF to find out
a routine which would list out all the
pixels and the counts associated with
them for a fits image, but I could not
find anything. I would like to compare
my model image (with WCS coordinates) to
a real im...

2232

By: fitz

12/27/2015 10:08PM

IDENTIFY problemStarted by:fitz, 01/25/2016 02:12AM
[color=red][Moderator's Note: Forwarded
from story submission on behalf of
user][/color]

I have same problem as in help log 35,
my cl script is not running for identify
task , I wrote a simple cl script but it
is not adding wavelength value on
pres...

1094

By: sapna

01/26/2016 04:47PM

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