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Last Post

ccdproc uses "nointerp" parameter twi...Started by:sontag, 06/09/2014 06:46PM
Hi Mike,

A PyRAF user found something which the
CL allows but PyRAF does not. In
checking it, I realized it looks like it
may be a bug which you may wish to fix.

In ccdproc.cl, there are two calls to
_ccdtool().

In both of them, the "nointerp"...

965

By: fitz

06/09/2014 07:05PM

ccdproc: floating point invalid oper...Started by:vidak, 10/20/2007 09:15PM
Hi,

I met the following error when starting
ccdproc: ERROR: floating point invalid
operation. The only thing this time
ccdproc should do is zero and flat
correction on an image (to make things
easier), but with no luck.

The output of the process usin...

17031

By: hymong

10/20/2007 09:15PM

CCDPROC: DATASEC error after DATASEC ...Started by:jminer, 03/03/2009 09:09PM
Hi,

I am getting the "Error in DATASEC
parameter" message when trying to use
ccdproc to trim and overscan-subtract
images. From what I've read in these
forums, one possibility is to remove the
DATASEC and CCDSEC header entries
entirely, which I have do...

3491

By: jminer

03/03/2009 09:09PM

CCDSEC and DATASEC what is the probl...Started by:valdes, 03/23/2006 04:30PM
[b:243ab988c4]From:
[/b:243ab988c4]pierre Leisy
<pleisy@ing.iac.es
([email]pleisy@ing.iac.es[/email])>
[b:243ab988c4]Date: [/b:243ab988c4]March
13, 2006 12:51:34 PM MST
[b:243ab988c4]To:
[/b:243ab988c4]valdes@noao.edu
([email]valdes@noao.edu[/emai...

3698

By: valdes

03/23/2006 04:30PM

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

ccmap doesn't create solution fileStarted by:jacob, 12/13/2008 06:18AM
I am using ccmap and cctran to do
astrometry. However, after creating the
database file with ccmap, cctran always
returns the output equal to the input.

I believe this is because ccmap just
won't create a solution file. However,
a results file and a ...

1558

By: valdes

12/13/2008 06:18AM

CCMAP output as an input for GEOTRAN?Started by:sinopesky, 07/15/2008 01:33PM
Is it possible to use CCMAP's output
(database) as a database input for
GEOTRAN?

2860

By: sinopesky

07/15/2008 01:33PM

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

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...

1099

By: donzelli

06/25/2015 10:46AM

ccxymatch: USNO A2.0 data vs USNO B1.0Started by:rbroberts, 04/28/2007 02:01AM
I'm having a problem with getting
ccxymatch to plate solve an image when
extracting data from USNO A2.0 vs B1.0.
I have A2.0 locally, but B2.0 I have to
download via a small Perl script I wrote
to use the CGI interface. The image is
actually [b:6bb165...

3468

By: rbroberts

04/28/2007 02:01AM

center doesn't write text file in outputStarted by:le.davide, 10/22/2013 10:50PM
Hi,
all of a sudden the IRAF task
noao.digiphot.apphot.center doesn't
write the text file in output when I run
it in non-interactive mode.
If I run in interactive mode and I ask
to "write and quit", then it works.
Any idea about what do I have to cha...

680

By: fitz

10/22/2013 11:07PM

Center paramters, hidden? NO! Inheri...Started by:stinker, 03/21/2009 10:50PM
Hi IRAFers,

I am writing a script that does a lot of
centering; takes a lot of images and
approximate coordinates and finds more
accurate centers.
Using noao.digiphot.apphot.center

The problem is that I have to do this
for *VERY MANY* different sets...

1584

By: stinker

03/21/2009 10:50PM

centering algorithm for fitpsfStarted by:Guest, 10/24/2006 09:34AM
Hello,

I am using the task "fitpsf"
(noao.digiphot.apphot) with a list of
coordinates. I would like to know if
there is a possibility of fixing
the center without allowing the task to
search for it (the center, the
brightest source nearby). I know t...

3367

By: phil

10/24/2006 09:34AM

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...

5584

By: valdes

04/06/2006 05:07PM

changes in ccdproc pram file will not...Started by:David Emory, 07/02/2008 10:38PM
When I edit the ccdproc pram file and
save with ":q" and then look at the file
(using lpar ccdproc or epar ccdproc) to
make sure that the changes were saved, I
get back the original file. Changes are
not being saved. Any suggestions?

2972

By: valdes

07/02/2008 10:38PM

changing "wavelength" label...Started by:rohit, 04/16/2008 04:35PM
I have been converting dat files into
fits files. In the dat files I have two
columns, flux and wavelength. The
wavelength is in microns. I am able to
successfully convert dat into fits but
when I use splot, the wavelength label
in the x-axis shows it a...

3150

By: valdes

04/16/2008 04:35PM

Changing apertures in FXCORStarted by:rohit, 04/13/2010 08:12PM
I am using an echelle spectra.

Is there a way to change apertures in
FXCOR interactively? Like the way you
change the fitting function by typing
:func center1d

Doing a "?" in the interactive window
gave me a the following keyword:

:apertures

I ...

1679

By: rohit

04/13/2010 08:12PM

changing data values with imshift and...Started by:bwp, 09/27/2006 04:32PM
I am attempting to analyze data from the
Hubble archives. At this stage, my goal
is to align and median combine 4 images.

I used the STSDAS task wfits to make a
standard FITS file of the image from the
planetary camera (I intend to deal with
the wide f...

4025

By: valdes

09/27/2006 04:32PM

Changing projection geometry?Started by:keflavich, 04/20/2007 05:51PM
Is there a task capable of changing an
image's projection geometry? I'm
dealing with two data sets, one with sin
(e.g. CTYPE1=RA---SIN), one with tan,
and I'd like to convert both to linear
because I'm using some imaging code that
does a horrible job o...

3059

By: fitz

04/20/2007 05:51PM

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...

1852

By: suma99

08/24/2015 06:03PM

Changing the font size of the graphic...Started by:klabrie, 04/01/2009 01:56AM
Hi,

It seems that no matter how big the
xgterm font size is, the graphics window
font size remains the same, which
unfortunately is for some of our local
users too small. Is there a way to
control the font size used by the
graphics window?

Thanks
Kat...

6837

By: klabrie

04/01/2009 01:56AM

Chopping the ends of spectraStarted by:nrowell, 04/26/2007 02:12PM
Hi,
Just wondered if anyone can help me with
this. I'm working with some spectra that
are very noisy at one end, and i want to
chop the last 1000A off. I've tried
various tasks in IRAF and can't find
anything to do this. Does anyone know of
a suitable m...

2435

By: fitz

04/26/2007 02:12PM

CNSHD548725 Fwd from User: Bug in po...Started by:Guest, 12/01/2005 02:01PM
Dear Doug,
I was forwarded your request via
IRAF help and STScI help. I wrote the
imaging polarimetry tasks in the
stecf.impol package.

I looked at your images. They had some
floating overflow values in them
(- and + 3.38E38) which I am sure ...

2882

By: Guest

12/01/2005 02:01PM

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

By: fitz

06/13/2006 09:50PM

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

By: fitz

06/30/2006 02:08AM

Combining apertures with scombineStarted by:colinn, 04/24/2014 06:46AM
Hi
I'm trying to combine the orders from an
echelle spectrum that have been
separated into individual files using
scopy into one long spectrum so I can
see the overall shape.
I am using scombine.
My input file is
@inscombine1252_bt14long.lis, this co...

1213

By: valdes

05/12/2014 09:08PM

combining band spectraStarted by:nrowell, 07/13/2009 11:50AM
Hi,

Just wondering - Is there a way to
combine spectra so that the associated
band spectra are also combined? scombine
ignores the band spectra and only
combines the primary spectra in each set
of images. I can't find another task
that would do this.

...

1891

By: nrowell

07/13/2009 11:50AM

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...

5983

By:

03/21/2009 05:58AM

combining multiple exposures of one f...Started by:puchao, 09/05/2008 11:41PM
Using the NICMOS camera, I have gathered
multiple exposures for one filter with
different exposure times and I would
like to combine the resulting images
using iraf.

Thanks.

1886

By: valdes

09/05/2008 11:41PM

combining spectra taken months apart:...Started by:westmoquette, 03/08/2011 05:16PM
I have a set of IFU observations taken
at the same coords and spectrograph
setup, but ~two years apart. Before I
can co-add them, I need to correct for
the different geocentric velocities at
the time of observations - i.e. correct
to the heliocentric ve...

3132

By: valdes

03/08/2011 05:16PM

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