iraf.net

Welcome to iraf.net Wednesday, May 08 2024 @ 02:11 AM GMT

Forum Index > Help Desk > Applications

New Topic

First | Previous | 6 7 8 9 10 11 12 | Next | Last

Topic Subject

Views

Replies

Last Post

fitparams produces an ERROR: segmenta...Started by:marblestation, 04/18/2011 06:31PM
I have IRAF 2.15.1a 64bits on a
GNU/Linux Ubuntu system and I get a
[b:e6f2534c1b]segmentation
violation[/b:e6f2534c1b] when I try to
use the
[b:e6f2534c1b]fitparams[/b:e6f2534c1b]
task.

In order to reproduce the error, create
in your imdir the file 'r...

3960

By: marblestation

04/18/2011 06:31PM

ds9 and the image cursorStarted by:sdoug, 02/21/2011 07:09PM
Hello,

I would like to be able to access image
information from ds9 using the image
cursor, but at the moment I'm hitting
two problems, and I think the second
might be causing the first.

1) When using =imcur, I can't use any of
the commands listed und...

2204

By: fitz

02/21/2011 07:09PM

qphot: maximum value in apertureStarted by:iaa, 02/14/2011 06:57PM
I would need to know, when doing
photometry, whether one or more pixels
in the aperture are above a given
threshold—say 50,000 ADUs, after which
saturation is considered to have arisen.
In other words, I would like to be able
to test whether any of th...

2834

By: iaa

02/14/2011 06:57PM

floating point invalid operation in t...Started by:billv, 01/26/2011 12:56AM
I get the message "ERROR: floating
point invalid operation" while trying to
run TRANSFORM on images. identify,
reidentify, and fitcoords have all run
without problems. I understand that this
error arises from some operation fault,
but the images do not...

1975

By: valdes

01/26/2011 12:56AM

The syntax error: **: }Started by:cosmologist, 01/24/2011 03:40PM
Does anyone know what this syntax error
might mean?

[code:1:988210480c]
** Syntax error, line 1315
**: }
[/code:1:988210480c]

It says line 1315, but how do I know
which file is that?

1684

By: cosmologist

01/24/2011 03:40PM

mscred ccdproc and mosaic2 xtalk fileStarted by:Edward Olszewski, 12/14/2010 05:18PM
For my late-Nov 2010 CTIO Mosaic2 data,
the crosstalk file embedded
in the header is
mscdb$noao/Mosaic2/CAL0102/xtalkB0102

This file does not seem to exist.
CCDPROC is unhappy.

My collaborator, at the telescope,
fooled iraf by copying xtalkA0102
into ...

2723

By: travisrector

12/14/2010 05:18PM

PSF + matchbyid=noStarted by:vall, 10/29/2010 08:57AM
Hi,

What is the matching radius in PSF if
the parameter matchbyid=no? I would
guess it is "matchrad" in "daopars", but
this does not seems to be documented
anywhere. Could you please confirm?
Thanks.

Vallery

1648

By: vall

10/29/2010 08:57AM

compiling fortran programs within irafStarted by:amiravb, 07/08/2010 07:55AM
Can someone help me - I am trying to use
a fortran program that has previously
worked. The only difference is now I am
running it from my personal laptop. I am
compiling within iraf,and keep getting
the following errors?? e.g.
> fc program.f
program....

1908

By: amiravb

07/08/2010 07:55AM

Trouble creating a packageStarted by:JanRap, 05/17/2010 10:02AM
I am trying to create a simple package
to test whether I can get one task to
call another.

Below is the package file for the "test"
package (test.cl) as well as the two
tasks I am using.

[code:1:031f3b7b56]# Package script task
for TEST package

# Loa...

1624

By: JanRap

05/17/2010 10:02AM

GKI files to B&W PS files...Started by:sjchan, 04/21/2010 04:00PM
Hello:

I have problems related to how to
use old GKI files.
I have a few old GKI files. Now, I
want to print them out or save them
into PS format (B&W figures) for
publication.

I have tried the following:

1) I invoked 'stdgr...

2764

By: sjchan

04/21/2010 04:00PM

minimizing RMS value when identifying...Started by:amalmirando, 03/21/2010 03:07AM
It is expected that,the RMS value in
identify task should be somewhere around
0.01 for a good identification of
reference arc. In identifying my arc ,i
tried various things to minimize the RMS
value but seems impossible to reduce it
to around 0.01.can a...

2209

By: amalmirando

03/21/2010 03:07AM

Troubles with installation of mscred ...Started by:Chrissyo, 03/20/2010 10:47AM
Hi everyone.

I'm not a first-time iraf user, but I'm
a first-time iraf installer. I'm
working with some multi-extension fits
files, so I've been trying to get
version 4.9 of mscred installed. I've
already got version 2.14 of iraf
successfully install...

2683

By: Chrissyo

03/20/2010 10:47AM

photometry data pre-reduced by idl ca...Started by:china_108, 03/16/2010 04:37AM
I've got some data pre-reduced by
IDL(flat, bias and dark) and now I need
to perform photometry on them using
IRAF. The pre-reduced data is still in
fit format and can be open directly
using ds9. But the problem is that it
cannot be opened by IRAF. It s...

1948

By: china_108

03/16/2010 04:37AM

Keck LRIS data reduction - 2006Started by:ash, 02/25/2010 11:00PM
Hi all, I am just getting my hands on
some (red) LRIS data and am working on
resolving the problem with bias from the
double amplifiers on the CCD. As the
system was upgraded recently, the
current support page doesn't seem to
apply to my data, taken in...

1845

By: ash

02/25/2010 11:00PM

Equivalent width for double peak spectraStarted by:anggarendra, 02/22/2010 03:44AM
hello everyone,

I have a double peak Be star Spectra
(shell) in H alpha region and want to
determine the equivalent width value
using splot. which method should I use
for the best result?

direct Integration (e), single profile
fitting (k), or multipl...

3693

By: JulienM

02/22/2010 03:44AM

Aperture photometry done, what now...?Started by:AnTaR3s, 12/12/2009 04:24PM
Hello everyone.

I've recently done some observations and
I#m trying my luck with aperture
photometry in IRAF. I've managed to get
a full list of my measurements, which
looks something like this:

#N IMAGE ID XCENTER
YCENTER ...

3491

By: fitz

12/12/2009 04:24PM

question with ccdprocStarted by:Guest, 11/30/2009 10:02PM
Hello.

I just installed iraf and pyraf onto my
intel Mac running
SnowLeopard. I copied over my old
login.cl file and tried running
ccdproc on some files. I'm using all of
the parameters as shown in
Phil Massey's CCD reduction guide, but
no new ...

2297

By: e137087

11/30/2009 10:02PM

how to use imexam with ds9?Started by:Arp, 10/28/2009 01:37PM
Hello!

Im trying for the first time some
photometry with iraf and ds9. I started
ds9, and then I startet imexam and chose
the correct frame buffer.
But then nothing happens. Sometimes the
cursor in DS9 changes, it blinks between
a black annulus, and a ...

5875

By: fitz

10/28/2009 01:37PM

Mscimage, reflect, constant and refer...Started by:tdboer, 09/02/2009 03:41PM
Hi everyone,

Maybe someone here can shed some light
on some issues I have been thinking
about recently. I am reducing some CTIO
MOSAIC data, which includes resampling
to a common grid. There are basically 3
issues I would like you all to think
about.
...

2686

By: tdboer

09/02/2009 03:41PM

stsdas&tables on ubuntu 64bit wit...Started by:rocker_milan, 08/29/2009 05:45PM
hey, it's me again.. i hope you don't
mind if i asked some question again..:)
i have already installed the iraf,
stsdas, and tables on ubuntu 9.04 64bit.
and it appear succesfully, because
there's no error message that i get. the
command is just like t...

4801

By: fitz

08/29/2009 05:45PM

tcreate freezes when trying to runStarted by:liuyi, 07/30/2009 11:39PM
Hi everyone,

I'm an undergraduate working on a summer
research project using IRAF. I am
having some problems with making a table
using tcreate.

I tried the command on a very simple
table, so my data file looks like:

1 2 3 4 5
2 3 4 5 6

and my colu...

2066

By: liuyi

07/30/2009 11:39PM

Script Question Reading and editing h...Started by:sebastian, 07/23/2009 03:43AM
Hi, I'm having troubles writing a
script. The aim is to read a file with
numbers
to be added as parameters via hedit on a
list of images.
e.g

Part of the code:
[code:1:2da6262d5f]
list="input"
#file with n...

2595

By: sebastian

07/23/2009 03:43AM

need help installing tables and stsdasStarted by:Arp, 06/19/2009 02:14PM
Hi!

Im very new to linux, but I have to use
and learn it :)
Im using Iraf, and need stsdas, which
needs tables. Im using Suse 11.1.

I managed to install iraf, and it seems
to work. I guess tables is not built
yet, I just unpacked it into a folder
/ira...

2425

By: Arp

06/19/2009 02:14PM

imcopy problem using sectionsStarted by:massey, 06/18/2009 06:20PM
Hi, Mike et al---

I'm having difficulties copying a
sub-array from an image using "@" files.
Here is a simple example of what I
mean:

ecl> imcopy
rccd070315.0047.fits[96:1052,165:1020]
tempa
rccd070315.0047.fits[96:1052,165:1020]
-> tempa
ecl&g...

3887

By: massey

06/18/2009 06:20PM

identify (calibrating spectral image)Started by:cosmologist, 05/14/2009 06:09PM
I want to calibrate my reduced spectral
image, I am reading Phil Massey's guide,
but I got totally stuck!
On page 23 it describes what to do after
using the task identify, [ Each time,
you will be asked for the corresponding
wavelength. You can enter an...

4741

By: valdes

05/14/2009 06:09PM

Use of DopcorStarted by:rohit, 05/13/2009 01:59PM
I have been trying to combine two
spectra taken at two different epochs.
But before adding them (using sarith
task), I need to correct for doppler
shift. From the help under dopcor, I
find that I need to use rvcorrect to
find vhelio:

spectra1.fits ha...

3651

By: rohit

05/13/2009 01:59PM

Any way to make ds9 save *complete* R...Started by:raybutler, 04/28/2009 04:28PM
Hi,

I have discovered that I can
automatically make perfectly
colour-balanced RGB composites in ds9 -
much better than even my old
statistics-based scripts which used
color.rgbsun. For my particular data,
setting scale to (sqrt, 98%) for all 3
channels...

10002

By: paco

04/28/2009 04:28PM

normalize data using continuum taskStarted by:, 04/16/2009 02:54PM
Hello all,

I have a couple of spectra with very low
counts in the low wavelength region. I
normalize using continuum task in the
specred package. In the normalized
spectra, the parts with low counts
appear exaggerated (oscillate wildly)
wrt the rest. M...

4473

By:

04/16/2009 02:54PM

Help with simple scripting problem 2Started by:Gaba_p, 04/08/2009 07:22PM
Hi,

I have a two column file like this:

text1 text2
text3 text4
...

and I want to access the first 'n'
columns and print them to a file. I've
tried this (among a bunch of other
things, but this one seems to be the
more reasonable one to me:

for (i=1...

2062

By: Gaba_p

04/08/2009 07:22PM

Replacing obsolete 'pappend' taskStarted by:Gaba_p, 04/02/2009 05:50PM
Hi,

I'm following Massey 's 'A User's Guide
to CCD Reductions with IRAF' (1997), and
when I get to page 56 it says I should
use the obsolete task 'pappend'. My
question is: which task replaces this
old one (in the way it's used in the
guide), 'tmerge' ...

3137

By: fitz

04/02/2009 05:50PM

First | Previous | 6 7 8 9 10 11 12 | Next | Last

	Normal Topic
	Sticky Topic
	Locked Topic

	New Post
	Sticky Topic W/ New Post
	Locked Topic W/ New Post

View Anonymous Posts

Anonymous users can post

Filtered HTML Allowed

Censored Content

dog allergies remedies cialis 20 mg chilblain remedies

Search

Forum Menu

User Functions

Topics