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How to convert fits file into ASCII f...Started by:nishahansraj, 11/10/2009 07:03PM
I have a fits file. It is actually a
spectra. When I use splot
<filename>.fits I get a plot of
spectra of an object which is normalized
amplitude (y-axis) versus wavelength
(x-axis). I would like to extract the
data, get two columns one which woul...

18153

By: StarryEyed

11/10/2009 07:03PM

Covert fits file into imh using rfitsStarted by:devereux, 11/11/2009 08:46PM
Hi,

I just re-installed PyRaf following a
hard drive failure.

Everything seemed to be going swimmingly
until I tried to do an rfits - it
complained
that it can not open a pixel file.

I got the following error message when
trying to convert
a fits spe...

10494

By: fitz

11/11/2009 08:46PM

CCD SpecsStarted by:FSBoyden, 04/24/2007 01:12PM
Hi all.

I hope someone can help me on this. We
are using a Apogee U55 16 bit, back
illum CCD on our telescope. The
datasheet for the camera spec. give it a
LFW of 400 000 electrons and a dynamic
range of 93 dB. It does not however give
estimates of the...

9991

By: FSBoyden

04/24/2007 01:12PM

C library for STSDAS table formatStarted by:emiliano, 05/26/2006 04:48PM
Hello,

for a synthetic photometry project I
need to read/write STSDAS tables; do you
know if there is a C library to
read/write STSDAS tables?
By the way: is Starbase format
compatible with STSDAS? And where
exactly can I find the description for
STSD...

9523

By: emiliano

05/26/2006 04:48PM

Xgterm cannot find commandStarted by:Gr3g0ri0, 08/01/2007 08:19PM
Hi fellow IRAF users,

I'm a student astronomer, and I'm
working from my laptop, accessing a
server in the department remotely
through Cygwin. For the last month,
everything has worked fine with access
the server. I'd start cygwin, type
"startx",...

8695

By: fitz

08/01/2007 08:19PM

Save The BitsStarted by:eric1, 04/11/2006 04:04PM
What program do I run to create accounts
in a downloaded version of Save The
Bits?

8323

By: fitz

04/11/2006 04:04PM

Parallel Computing Operating Systems ...Started by:RJ Emery, 03/25/2007 02:31PM
Anyone know of parallel operating
systems designed to work with multiple
PC processors?

8054

By: fitz

03/25/2007 02:31PM

Citing IRAF in paperStarted by:will.flanagan, 05/11/2009 09:49PM
Hi IRAFers,

I was wondering if there is any standard
way of citing IRAF in a paper. From the
papers I've seen, it seems most common
just to say something like "we made use
of IRAF packages x, y, and z. NOAO pays
the bills for IRAF." in the body of the
...

7646

By: will.flanagan

05/11/2009 09:49PM

IRAF in KazakhstanStarted by:TheHarold, 04/13/2007 05:07PM
I hope this is the right forum for my
question. I am writing for a Russinan
friend working in Kazakhstan. He is
interested in installing and using IRAF
there. Are there any US government, or
AURA, regulatory restrictions on his
obtaining IRAF?

Thank...

7580

By: fitz

04/13/2007 05:07PM

how to handle CALSPEC fits filesStarted by:galtavi, 08/29/2006 08:54AM
Dear IRAF expert, I have a problem
handling the CALSPEC spectra
(http://www.stsci.edu/hst/observatory/cdbs/calspec.html)
with IRAF.
"Files are in machine independent binary
FITS table format".
It's the first time I use them.
SPLOT does not plot them (ER...

7081

By: hanin

08/29/2006 08:54AM

Incomplete copyright information in FAQ.Started by:maurix, 12/29/2005 07:01PM
Hi
I noted that the information about
copyright in your FAQ pages
([url]https://iraf.net/faqman/index.php?op=view&t=58[/url])
is incomplete:
You have only reproduced parcially the
copyrights note and the second part of
copyright show evidently that ...

6990

By: maurix

12/29/2005 07:01PM

FITS sample files?Started by:DavidS, 09/01/2007 05:47AM
Hi,
I just installed IRAF and ds9 on my
Ubuntu desktop and starting to learn how
to use it.
So far, I have too little data from by
own obs, so I can't try much for real.
Does anyone know how to find small,
"sample" FITS files to play with? (I do
ordinar...

6930

By: DavidS

09/01/2007 05:47AM

problem in using iuetools in irafStarted by:nishahansraj, 09/19/2009 06:34AM
I am having the following Problem while
working with iraf. I have some .mx files
which i need to convert to .fits file
for which i require iuetools package to
be installed in iraf. I was already
having iraf installed, i installed
iuetools. I am having t...

6682

By: nishahansraj

09/19/2009 06:34AM

typo fix for daophot.psfStarted by:Jason Quinn, 11/24/2007 05:09AM
The DAOPHOT psf task has a typo in its
parameters. There's a missing period.
Check the epar for the pstfile
parameter. It is

"Input psf star list(s) (default:
image.pst?)"

when it should be

"Input psf star list(s) (default:
image.pst.?)"

Jason

6405

By: fitz

11/24/2007 05:09AM

Aperture correction photometry and sk...Started by:CavasRNC, 05/19/2010 10:14AM
Hi Everyone,

I am performing aperture photometry on
Spitzer/IRAC crowded field images. The
great number of point sources close to
each other lead me to decide to use
smaller apertures and then perform
aperture correction. The instrument's
handbook alre...

6404

By: StarryEyed

05/19/2010 10:14AM

FOCAS not foundStarted by:ganis, 01/30/2006 03:35PM
I'm a newbie to IRAF, but i'm intersted
in using the focas package. I found it
in NOAO but when I try to enter "focas"
from the command line I get a message
that says something like "not at this
time " or "for a future release". Am I
out out luck ? I...

6262

By: fitz

01/30/2006 03:35PM

IDL 6.3 for Intel Macs now avaliableStarted by:sirmarcos, 07/27/2006 10:55PM
While we're all IRAF-users here, it's
probably noteworthy for more than a few
Macintosh Astronomers here than IDL is
now available a universal binary.

[url=http://www.ittvis.com/forum/message.asp?fmid=1916]The
somewhat unceremonious
announcement[/url] ...

6230

By: sirmarcos

07/27/2006 10:55PM

Astrometry header standard for FITS?Started by:puck2017, 12/10/2007 09:45PM
I am looking for some help understanding
the FITS standard for encoding an
astrometric solution in the header.
Specifically, is the cos(dec) correction
for RA supposed to be encoded in the
CDm_n/CDELTn keywords, or is it
understood that it will be appl...

5775

By: fitz

12/10/2007 09:45PM

Scanf help docStarted by:Jason Quinn, 04/07/2006 06:03PM
[quote:e68ad79c50]A field format
specification has the form
"%[*][w][lh]C", where '*'
indicates the field should be
skipped, W is the field width, 'l'
indicates longword output, 'h'
indicates halfword output, and C is
the format code....

5759

By: Jason Quinn

04/07/2006 06:03PM

Scientific Computing ForumStarted by:RJ Emery, 03/25/2007 02:38PM
Anyone know of a forum where scientific
computing can be discussed?

5423

By: fitz

03/25/2007 02:38PM

Want to build a dedicated BPM makerStarted by:Jason Quinn, 08/15/2009 12:32AM
Hi, guys. I'm considering to develop a
dedicated bad pixel mask generator. I'd
like it to be as cross platform as
possible. The basic functionality and
operation of the program will be the
following:

1) display a FITS image
2) use the mouse to click an...

5091

By: valdes

08/15/2009 12:32AM

question regarding IRAF's 16 frame ii...Started by:Jason Quinn, 05/15/2008 11:29PM
I'm curious what architectural
limitations on the number of display
frames that IRAF can support are. How
difficult would it be to increase it to
32? 512? 1024? Why have a limitation at
all? I'm not sure how the image servers
manage memory but it seems ...

4782

By: fitz

05/15/2008 11:29PM

neon spectrumStarted by:milena, 10/11/2010 12:09PM
hey,

I want to ask if it is possible to print
a diagram of a neon spectrum from IRAF.
I need the spectral lines from 3000-5500
Angström. Or if you know where to get a
diagram like this. Not in tabulated
form. It's for the package "slit", task
"identif...

4367

By: fitz

10/11/2010 12:09PM

Autoguiding systemsStarted by:FSBoyden, 02/22/2008 11:23AM
Hi All :D

(To Mike and the gang :wink: I got my
masters degree, thanx for all the help
on the finer points of photometry with
IRAF. U were great :D Thanx. P.S. the
new pipeline is up and running on the
Boyden telescope system.)

I am throwing this bit...

4357

By: FSBoyden

02/22/2008 11:23AM

New York Times article on R (January ...Started by:Jason Quinn, 01/07/2009 05:04PM
Today there was a New York Times article
"Data Analysts Captivated by R’s Power
". R is a very popular statistics
program. I think of IRAF and R as being
very similar style environments. I
thought this might be of interest to
some people here. [url]ht...

4310

By: jturner

01/07/2009 05:04PM

PSF-ing and ChiStarted by:hawcheng, 03/28/2011 02:58PM
I have a question about PSF fitting and
the chi statistic that is employed in
Daophot and Allstar. Perhaps those of
you who don't use Daophot or Allstar but
do PSF fitting might also have some
insight regarding this.

Basically, when I plot chi vs. raw ...

4221

By: azangari

03/28/2011 02:58PM

from IRAF to UNIXStarted by:AndrewS, 06/10/2011 02:22PM
my first exposure to scripting has been
through IRAF.
I now need to write part of a script for
UNIX but don't know anything about the
syntax or programming language of UNIX!!

can someone please tell me how to set up
the equivelant command in a UNIX she...

4121

By: fitz

06/10/2011 02:22PM

FITS2jpeg jpeg packageStarted by:gcardonav, 05/20/2010 11:20PM
Hi guys:

I am trying to install the FITS2jpeg
package in my mac. I been trying to get
the jpeg software which is available
[url]ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6a.tar.gz[/url],
but when I try to anonymous sftp or ftp
into it and enter my email ...

3730

By: gcardonav

05/20/2010 11:20PM

Differential photometry and PSFStarted by:FSBoyden, 07/27/2010 07:59AM
Hi

Just want to do a double check if my
procedure is acceptable!

I am doing fast photometry on a variable
star - problem is that the field I am
working in is relatively sparse. My CV
is at 11-12 mag, while the only
comparison stars bright and stable e...

3435

By: valdes

07/27/2010 07:59AM

Amazing computer learning programStarted by:Jason Quinn, 04/05/2009 01:59PM
For those interested in such things, a
paper was recently submitted about a
program that can extract physical laws
from raw datasets. Sounds too good to be
true but apparently it is real. Check
out this website (includes an excellent
youtube video) expl...

3334

By: Jason Quinn

04/05/2009 01:59PM

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