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(IRAF Config) RequirementsStarted by:Guest, 08/09/2006 03:00PM
Good Morning,

I'm a Brazillian student on
astrophysics. I would like to use the
IRAF, but I have few doubts:

1- What are the hardware requirements
to use IRAF?
2- How can I install IRAF in PC LINUX?

Thanks a lot.

3748

By: fitz

08/09/2006 03:00PM

IRAF on sasanamiStarted by:rhy, 08/02/2006 03:43PM
Hi Crystal,

I confirmed the error you are seeing by
copying 15Hmaster.tab to different
Linux system running IRAF, which all
give the same error you saw on
sasanami:

ta> tlcol 15Hmaster.tab
# 15Hmaster.tab
Warning: Unknown table type, or line too
lo...

3995

By: pweilbacher

08/02/2006 03:43PM

IRAF on sasanamiStarted by:Guest, 08/02/2006 12:18AM
Hi IRAF Gurus,

I have a question about the ttools
package in IRAF.

I created a binary table using "tcreate"
and "tedit"
on a Sun workstation running Solaris,
named Indy. The
ttools package works without a hitch.
The IRAF distribution
is the EXPORT ve...

3491

By: fitz

08/02/2006 12:18AM

dividing a large image in halfStarted by:kkwitter, 07/24/2006 06:07PM
Hi-

I have an image: xxx.fits[256,256,16383]
which is 2.1MB. Is there a way to split
this in half for easier manipulation
(it's a time series)?

Thanks!

KK

3943

By: fitz

07/24/2006 06:07PM

help with installationStarted by:Guest, 07/19/2006 05:30PM
Dear colleagues,

after installing IRAF, apparently
successfully, under a SuSE linux, I
type
'cl' from the iraf account but the
environment does not start. It does not
find the command 'cl'. As a matter of
fact there seems to be no iraf
executables...

3273

By: fitz

07/19/2006 05:30PM

IRAF on dual core machine?Started by:Guest, 07/19/2006 03:19PM
Hello IRAF folks, thanks for making such
a great product freely available.
I have been enjoying using IRAF for
years and have installed it on many
machines.

I am considering purchasing a laptop
with a dual-core (T2300) processor
and plan on putting red...

3247

By: fitz

07/19/2006 03:19PM

creating NaN's in a fits imageStarted by:jkrick, 07/06/2006 12:50AM
This may be strange, but I would like to
make some of the pixels in some mosaic
images have the value "NaN". I have
tried imarith and imexpr, using either
log of a negative number or dividing
images by 0, but the tasks quit with
errors and won't write...

5543

By: fitz

07/06/2006 12:50AM

advice requested please: running IRAF...Started by:Guest, 06/30/2006 07:08PM
Hello! This somewhat of a strange
request, but I've been sending emails to
various astronomy-related websites
(observatories included) in order to get
some advice about laptops and Linux and
astronomy-related software (I haven't
been able to find any in...

3491

By: fitz

06/30/2006 07:08PM

plotting image spectrumStarted by:ross58, 06/24/2006 09:44AM
when I plot an image spectrum of 16834
lines it gives back:
error:
/usr/lib/iraf/iraf//noad/bin/x_onedspec.e:
memory has been corrupted

What does it mean? What can I do?

3571

By: fitz

06/24/2006 09:44AM

operating system suggestions neededStarted by:, 06/19/2006 07:44PM
I'm planning on getting a new laptop
soon and am eyeing up the new Macbook
Pro. I do need to run IRAF, however, and
have some misgivings if it's not
entirely recommended on mac intel. I
know there's been a successful port but
haven't heard/read from too...

3118

By: fitz

06/19/2006 07:44PM

group imagesStarted by:Guest, 06/15/2006 02:29PM
Hello!

I am Kushal Mehta, a summer student at
NRAO and am working on some HST
data. I am using iraf to reduce the data
and I have a couple of questions:

1. Is there a task or command that I can
use to make a single image
consisting of 4 groups from ...

3593

By: EdAnderson

06/15/2006 02:29PM

very long xgterm windowStarted by:pskoda, 06/14/2006 11:07PM
Hi all,
I wanted to work with a long part of
merged echelle spectra (having about
5000 points) not loosing the resolution
by calling

xgterm.bin -G 7000x400+10-10

It produces long graphics window (after
starting the plot commands)
hopefully 7000 poin...

3765

By: fitz

06/14/2006 11:07PM

Syntax error in iraf cl.Started by:FSBoyden, 06/07/2006 10:54AM
Hallo

Just want to report a bug. I have
recently intsalled Iraf V2.12.2a and
when I run the cl I get a syntax error.

** Syntax error
**: if (!access (".hushiraf"))
^

I do not know if this is a known bug or
not. I am try...

4615

By: fitz

06/07/2006 10:54AM

ecl install error with FC5Started by:dylan.semler, 05/30/2006 02:28AM
I'm not sure if this is a problem that
anyone else will have but when trying to
install the ecl on Fedora Core 5 I got
the following errors:
[code:1:c9f23c4d4c]tail: cannot open
`+455' for reading: No such file or
directory
uudecode: _ecl...

3946

By: fitz

05/30/2006 02:28AM

"merge amps" in mscred's cc...Started by:Edward Olszewski, 05/24/2006 04:43PM
I was reducing some MMT Megacam data.
I'd forgotten SAO's warning
that "there's a bug in merge amps in
ccproc that adds a blank column",
and i didn't use their "megamerge"
routine. So indeed I have an mef with
36 extensions of data, all of which are
102...

4030

By: fitz

05/24/2006 04:43PM

Data ReductionStarted by:Guest, 05/22/2006 09:05PM
I'm about to start reducing my data. Do
I need to make a copy of the files first
before I do anything to them or is step
one simply to combine and subtract the
bias frames??

Thanks!

3754

By: fitz

05/22/2006 09:05PM

Gemini South coordinates in obsdb.dat...Started by:bmiller, 05/19/2006 07:28PM
Hi,

We have discovered that the coordinates
of the Gemini South telescope in
noao$lib/obsdb.dat are off by a small
amount. The correct values are given
below.

Thanks,
Bryan

# Gemini-South
# submitted by Bryan Miller, 5/18/2006
# from the Gemini TCS...

4008

By: fitz

05/19/2006 07:28PM

multiple image fits filesStarted by:dbrenner, 05/17/2006 07:33PM
I want to put several images into a
single fits file. i.e. make a data cube.

so

for i = 1 to 10
imcopy filei to cube.fits?

What is the proper form for my
cube.fits? such that I end up with all
10 files in the same fits file and can
display them in d...

4377

By: fitz

05/17/2006 07:33PM

fits extentions and examples in generalStarted by:Nigel Douglas, 04/14/2006 07:11PM
Congrats on the slick web page, very
efficient way of building up a Q&A
dbase.

I have a problem with fitsutil.fxinsert
- basically it does not do what I want.
The "help" examples are rather unhelpful
as you don't know how the input and
output files...

3969

By: fitz

04/14/2006 07:11PM

Format of .pl files?Started by:dougmink, 04/03/2006 11:21PM
Is there any documentation of the format
of .pl pixel list files?
I would like to be able to read them
with a C program. I already
have done that with .imh files; my
WCSTools package can read
any version of .imh file written by any
architecture on any ...

4663

By: fitz

04/03/2006 11:21PM

Calling IRAF/STSDAS routinesStarted by:raa, 04/03/2006 08:58AM
Hi,

Is it possible to call IRAF/STSDAS
routines from the shell prompt in linux
without going through the cl prompt?

with regards
Raa

3855

By: fitz

04/03/2006 08:58AM

request to include our observatoryStarted by:Guest, 04/01/2006 10:20AM
The longitude mentioned here is E. In
observatory parameter it needs W.
Kindly change the longitude 280.54361.

parameters are below
observatory = "aries"
name = "Aryabhatta Research
Institute of Observational Sciences"
longitude ...

3922

By: fitz

04/01/2006 10:20AM

executing cursor mode commands from a...Started by:duvall, 03/08/2006 09:39PM
I wanted to be able to execute cursor
mode commands from a script. I could
not figure out how
to do it from reading 'help cursors'.
One thing I wanted to do was to execute
graph from a script
and then execute the gcur T command to
put some text at a ...

4505

By: fitz

03/08/2006 09:39PM

syntax for file names in scriptsStarted by:guille, 03/03/2006 03:16PM
Hi there

I am working on a script and need to
build image names within it in order to
use them with an IRAF task (say,
"continuum")

I managed to get this working, but would
like to avoid creating lists, if
possible

for (i=1;i<=32;i+=1) {
print ("M...

4144

By: fitz

03/03/2006 03:16PM

xgterm not opening when starting up IRAFStarted by:70007k, 05/03/2023 01:56AM
I have run into an issue opening xgterm.
I did the usual conda activate iraf27,
then xgterm &, and then I get a
message: Segmentation fault (core
dumped) xgterm
I am not sure how to go about fixing
this problem.

1842

By: 70007k

05/03/2023 01:56AM

Flat lamp spectrumStarted by:Patrick Watson, 03/04/2023 02:24AM
Hello,
I have previously posted this in the
wrong forum - sorry.

I wish to process longslit images up to
and including spectra extraction. It
appears from my reading that when flat
correcting object spectra the flat lamp
spectrum needs to first be r...

1744

By: Patrick Watson

03/04/2023 02:24AM

Continuum fitiingStarted by:debs123, 07/19/2022 06:42PM
Hi,
I am a new user of IRAF and I am trying
to continuum fit a spectra. However, I
could not normalise the spectra exactly
at 1. I tried doing trial and error
changing the fit parameters, order and
functions. Still I could not get a good
normalise spec...

1576

By: debs123

07/19/2022 06:42PM

Astrometry Tasks problemStarted by:AAKANKSHA, 06/26/2019 08:09PM
Hi Fitz,
I want to perform astrometry and
photometry on KING 2 open cluster.
Currently, I have updated the WCS using
CCMAP but i still find that the images
don't have the final corrected WCS. Can
you please help out ?
http://iraf.noao.edu/projects/c...

642

By: AAKANKSHA

06/26/2019 08:09PM

canStarted by:giannicatanzaro, 05/07/2019 07:22AM
hi all
I cannot read with iraf FTS files
download from AAT archive, even if I
rename them in .fits.
Typical error I get is
ecl> splot RUN0002.fits
ERROR: MWCS: dimension mismatch
(mw_open)

or when I use imheader
ecl> imheader RUN0002
RUN0002...

981

By: giannicatanzaro

05/07/2019 07:22AM

SAOImageDS9 version 8.0 is now availableStarted by:joye, 12/13/2018 09:36PM
SAOImageDS9 version 8.0 is now available
for download. Please use this version
with IRAF.

http://ds9.si.edu/site/Download.html

9372

By: joye

12/13/2018 09:36PM

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