iraf.net

Welcome to iraf.net Wednesday, May 08 2024 @ 12:49 AM GMT

Forum Index > Help Desk > General IRAF

New Topic

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

Topic Subject

Views

Replies

Last Post

Segmentation fault when imarith attem...Started by:grayro, 07/01/2014 07:50PM
Hi,

I have just migrated to a new hard disk
on my laptop. I have re-installed IRAF
2.16, and have as well installed the
patch. However, when I run a script
(called axom1_2cb.cl), which works
perfectly well on other computers, I am
consistently gett...

3555

By: grayro

07/16/2014 09:29PM

Unix commandStarted by:Giorgio, 07/10/2014 10:14AM
Why can't I use Unix commands such as
"ls" or "pwd" in my IRAF session? Do I
need any particular packages not
installed?

1803

By: Giorgio

07/10/2014 09:42PM

iraf 2.16.1 not recognizing options -...Started by:marco.03, 07/10/2014 06:00PM
Hi.
the cl startup scripts (cl, ecl and
vocl) in IRAF v2.16.1 do not recognize
options, like '-old' or '-ecl'. I traced
the problem to the 'if' inside the
'case' statement at the start of the
bash scripts (lines 16-44).

Two things should need to be ...

688

By: marco.03

07/10/2014 06:00PM

Warning: Cannot open image (biasmos.l...Started by:5208, 07/08/2014 08:18PM
So I am trying to combine mosaic bias
frames, and I have created a list of the
images I need:
> ls iff*_gapmos.fits >
biasmos.list

I then ran "imcombine":
> imcombine
List of images to combine:
biasmos.list
...

2697

By: 5208

07/10/2014 03:37AM

input redirectionStarted by:marco.03, 07/09/2014 05:05PM
according to
[url]http://iraf.noao.edu/faq/FAQsec12.html[/url]
I should be able to run cl script from
any shell by doing:
[quote]% cl [code]
imstat dev$pix
logout
[/code]
using the [quote]cl -old

723

By: marco.03

07/09/2014 05:22PM

RESPONSE fit functionStarted by:nippur_1967, 07/03/2014 06:03PM
Reduction of long-slit spectra.

When you run the task RESPONSE to flat
averaged (dome or lamp) a function is
necessary to fit in the direction of the
dispersion.

I want to know that criteria used to
select the function and order.
Of course that i...

676

By: nippur_1967

07/03/2014 06:03PM

ds9 and disappearing imagesStarted by:dah@lowell.edu, 06/27/2014 04:23PM
My student and I have been trying to
make color images with ds9, something I
have done successfully in the past. We
click on "new rgb" and load in the three
images one by one. But then when we go
back to look at the previous images we
loaded, one or mo...

790

By: fitz

06/28/2014 01:14PM

Error: Cannot open file in daofindStarted by:dfelli, 06/06/2014 06:57PM
I ran daofind a first time through with
no errors and upon running it a second
time it produced an error Cannot open
file. It now no longer works on other
files creating a new coordinate files.

I tried deleting the created .coo.1 file
and making sure...

2003

By: dfelli

06/12/2014 05:50PM

instrumental magnitudes from Started by:BGMB, 06/04/2014 04:53PM
Hello,

I wrote some Pyraf scripts that
preprocess, platesolves, perform
aperture photometry of DSLR images. The
instrumental values calculated by
“phot” are then transformed to
standard B,V magnitudes following the so
called “CS” (Citizen Sk...

3329

By: BGMB

06/09/2014 06:24AM

Bash shell calling IRAFStarted by:accrama, 05/19/2014 02:42PM
Hi. If this has been addressed before I
did not find it.
I am on a MAC 10.9.3 Mavericks
computer.

According to the internet I can call a
IRAF task by doing
[quote]% $iraf/bin.sparc/x_images.e
listpix @listpix.par[/quote]

I have my parameters in ...

3022

By: accrama

05/20/2014 01:59PM

ERROR: floating point overflow: Bug w...Started by:ksmith, 05/10/2014 05:57PM
I get the error below with all Ureka
installs of IRAF on MacOSX Mavericks and
CentOS6.

We're trying to do some astrometry with
msccmatch, and the astrometry succeeds,
but IRAF barfs with a floating point
overflow when trying to write the
modified hea...

4789

By: ksmith

05/13/2014 12:35PM

xc errorStarted by:prajwel, 05/06/2014 12:22PM
[color=red][/color] I've just started to
learn SPP programming, and the very
start ended in a unprecedented
predicament.
I had saved this code as hello.x

[code]# hello

task hello = t_hello_world

procedure t_hello_world ()

begin
call p...

1493

By: prajwel

05/06/2014 02:38PM

how to indroduce int variable defined...Started by:prajwel, 04/12/2014 08:10AM
[b]I'm having a hard time introducing an
integer which I have defined in script
to a simple "sed" command :? :(

I have declared variable in script like
this

[code]int F=0
[/code]
Now I put this in a while loop and get a
particular value assigne...

1596

By: fitz

04/12/2014 04:02PM

NEED HELP! Problem with installation ...Started by:nusjjsun, 04/06/2014 04:25AM
Hi, I'm completely new to IRAF but this
problem has been confusing me for a long
time. I'm using OSX 10.9 system on my
MacBook Pro and just get IRAF installed.
But when I "display" a FITS file and
used the "imexam" command to produce the
radial profile ...

2928

By: fitz

04/11/2014 02:47AM

How to implement a standard PSF into ...Started by:nusjjsun, 04/10/2014 08:22PM
I'm working on psf-fitting the data from
IRAC. DAOPHOT has a standard procedure
of creating an empirical PSF from
isolated field stars. But IRAC itself
has a standard PSF (they call it PRF
since it's location dependent) for each
of its channel. Those PS...

1713

By: nusjjsun

04/10/2014 08:22PM

ERROR: segmentation violation with co...Started by:pmoyan, 04/07/2014 12:22PM
OS X 10.9.2
IRAF Revision 2.16.1

When I used the command "d" of
cosmicrays, it has the error messages,
segmentation violation with cosmicrays.

How to solve it ?

1587

By: pmoyan

04/08/2014 02:36AM

segmentaton violation with 2-meter KP...Started by:daniela, 03/31/2014 07:23AM
Hello,
I am at the dome of the KPNO 2-m
telescope and have downloaded on my
laptop a bunch of images just obtained
with the
CCD camera (STA3) .
To much of my surprise, I can't read
these images in IRAF. No matter what
package I use, I get: `ERROR: ...

1083

By: fitz

03/31/2014 02:43PM

how to determine the parameter zmag i...Started by:Johanna, 03/25/2014 02:59PM
Hi,

I want to get magnitudes of stars which
composed a globular cluster. For that I
use a PSF photometry. But I could see
that the parameter zmag defined in PHOT
task changes results. To determine this
parameter in different filter I used
standard st...

2148

By: Johanna

03/31/2014 08:02AM

longslit.background Fit line?Started by:astropunkin, 03/30/2014 05:22AM
I am trying to remove the sky background
from some science spectra using the
longslit.background package. I fill in
the following inputs into the parameter
file

PACKAGE = longslit
TASK = background

input = fncrz0118.HCG40-1219_s3.fits
Input...

1706

By: astropunkin

03/31/2014 12:27AM

questions about findgainStarted by:oliver, 03/21/2014 08:17PM
Hi,

I used to use IRAF for reduction but
didn't use it for a long time. I have
noticed that the findgain task is moved
into obsutil package. Does this mean
that there is another task, doing
similar thing like findgain, which is
not obsolete?

*help...

889

By: oliver

03/22/2014 09:41AM

Save ellipse overlays to a fileStarted by:vsravani, 03/19/2014 09:00PM
Hi,

Can somebody suggest me how to save the
output of isoimap or isoexam using a
script?
Essentially, I wish to save an image
with the ellipse isophotes and bad
pixel mask overlayed. Because I am
doing it for 100 galaxies, I wish to
write a script...

1169

By: fitz

03/20/2014 12:48AM

Problems with plotting using IrafStarted by:FSBoyden, 06/07/2006 11:29AM
Hi all

This is my third Q. The reason for so
many Q in one day is because I have
finaly reached a point where spending
all day searching for answers does not
get me anywhere.

I want to develope a photometry package
for my telescope, using Iraf scripts...

6980

By: linuxuser4712

03/18/2014 04:18PM

IRAF 2.16.1: "make latest" problemStarted by:rjvo, 11/15/2013 11:10AM
When I try
[code]make latest[/code]
I get lot of errors:
[code]Updating IRAF v2.16 to latest
release.

Fri Nov 15 12:04:32 CET 2013

(util/self_update)
Updating utility scripts ....Done
(util/iraf_update -all 2>&1 | egrep -v
"unexpected end of ...

2965

By: ncaon

03/17/2014 04:27PM

hedit doesnStarted by:phil_hodge, 03/05/2014 09:43PM
Using "NOAO/IRAF PC-IRAF Revision 2.16
EXPORT Thu May 24 15:41:17 MST 2012"
(according to the login banner), hedit
does not consistently separate fields
where there are commas in the 'fields'
parameter. Here is an example. The
file test_prism.fits is ...

1160

By: phil_hodge

03/06/2014 01:44PM

Ignoring a given pixel value when dis...Started by:vickys, 02/26/2014 12:49AM
I'm working with the command line
version of daophot (not iraf) and when I
run allstar some pixels in the
subtracted image are given a value of
-1E19. Up to now I've been using
imreplace to switch these pixels to zero
so I can display the image properly...

713

By: fitz

02/26/2014 01:35AM

Opening Sloan DR10 spectra with IRAFStarted by:Vital, 02/21/2014 05:57PM
Hello everyone! I wonder if anyone could
help me with a small issue regarding the
10th release from the telescope sloan.

This would be such a file I am using:

https://www.dropbox.com/s/4sj0w47k0129o55/spec-0394-51913-0472.fits

(which I got fro...

2896

By: Vital

02/24/2014 05:32PM

imalign: image shift not working?Started by:nick, 01/29/2014 01:28AM
Hi,
I'm using IRAF again after a long break,
so there's probably a simple solution to
this problem but I'm stumped:
I'm using imalign to register some
dithered images. It finds a good
alignment solution for each image, but I
can't get it to perform th...

3075

By: nick

02/24/2014 03:11PM

buying a mac laptopStarted by:duvall, 02/20/2014 08:58PM
I'm thinking of buying a mac laptop that
I would use to run iraf. Are there
minimum memory requirements to run iraf?
What works comfortably? Macbook Air or
Pro?
Thanks.
Tom

896

By: fitz

02/20/2014 09:04PM

problem with photometry of crowded fi...Started by:Johanna, 02/14/2014 08:36AM
Hi!

I am a Phd student at Montpellier in
France and I work on a globular cluster
NGC 4833. I want to get magnitudes of
stars which composed this globular
cluster. For that I use the protocol for
crowded field which I found in the
"Reference Guide to ...

1573

By: fitz

02/18/2014 06:00AM

IRAF not retrieving image coordinates...Started by:gasdiaf, 02/13/2014 02:39AM
When trying to use interactive tasks
such as imexam or psfmeasure with ds9,
no coordinates appear to be transferred
to IRAF. When using imexam I get the
flashing cursor when mousing over ds9,
as I would expect, but when I type 'r'
or 'a' or any other ke...

1614

By: fitz

02/13/2014 05:38AM

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