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n2gaussfitStarted by:sscibell, 09/25/2015 10:35PM
Hello,

I am new to using the n2gaussfit task
and I was wondering if, for example, if
when you type the command:

n2gaussfit image.fits[134:153,367:409]
out.dat

Is it creating a 19x42 box to then fit a
2D Gaussian to? So do the Xcent and
Ycent va...

830

By: fitz

09/29/2015 05:32PM

How to specify FITS extension for apa...Started by:jsb3r, 09/29/2015 04:29PM
I'm having trouble getting a script to
specify the fits extension for apall
within a huge ECHELLE reduction package.
Below is the error I keep getting.

***************************************************************
Resampling the spectrum by a fac...

2999

By: jsb3r

09/29/2015 08:17PM

imarith help fixStarted by:Jason Quinn, 09/30/2015 09:40PM
In example 4 in imarith's help, the
pixtype and calctype values are
switched. The command should read

[code]
cl> imarith image1 / image2
image3 pixtype=short \
>>> calctype=real
title="Ratio of image1 and image2"
[/code]
...

701

By: fitz

09/30/2015 10:34PM

MSCRED Warning: Cannot open file (una...Started by:mcp, 10/05/2015 01:59AM
Hi,

I'm new to IRAF, and am reducing images
using mscred. When trying to use
mscskysub, it gives: "Warning: Cannot
open file (unavail)," and I'm unable to
open the outputs. Why is this
happening?? I get the same warning when
mscdisplaying my input im...

1599

By: fitz

10/05/2015 06:18PM

2D image change unitsStarted by:sscibell, 10/12/2015 10:38PM
Hello,

Is there a task in iraf that can convert
units of a 2D image? For example, from
deg vs. wavelength to arcsec vs.
velocity?

Thanks!
SS

664

By: fitz

10/21/2015 04:01PM

Flatcombine acting Strange (?)Started by:AJH_IU, 10/21/2015 02:31PM
I'm having issues combining my flats
(already separated by filter) using
flatcombine. For full disclosure the
motivation for this is my A305 class and
we are supposed to be "getting our feet
wet" by reducing some data. I have
brought this to my AI's and...

937

By: fitz

10/21/2015 04:18PM

MSCIMAGE issueStarted by:mcp, 10/17/2015 08:53PM
Whenever I try to use MCSIMAGE I get
this: " ERROR: No input image data found
in 'input.fits' ". My input files are a
mosaic images and I can open them
normally using MSCDISPLAY. Following
http://www.noao.edu/noao/noaodeep/ReductionOpt/frames.html,
I us...

974

By: fitz

10/21/2015 05:10PM

Error : no release file Started by:AndyR, 10/22/2015 09:28PM
Greetings,

I was successful install IRAF on my mac.
Upon typing cl when it says welcome to
IRAF etc.

Along the lines it says, Error : No
release file

Does anybody know what this is and why?
I would appreciate any recommendations
to how to fi...

1692

By: fitz

10/23/2015 06:43PM

mknobsfile errorStarted by:clobo, 11/05/2015 10:25AM
Hello,

I have installed IRAF v2.16.1 in Fedora
20 and used it to calibrate standard
star fields as usual (I've done this
before with previous IRAF versios
without any problem). However, now I am
stumbling upon an error while trying to
run mknobsfile....

1575

By: clobo

11/10/2015 12:11PM

Unable to start IRAF with login.clStarted by:wpbowman, 11/15/2015 01:31AM
I am unable to start IRAF with a
login.cl file. I run IRAF 2.16 on Linux
Fedora 19 and it has worked fine for
months. I was working in IRAF yesterday,
shutdown my computer when finished, and
received the following error today when
attempting to start IR...

5312

By: wpbowman

11/17/2015 08:22PM

Analysing FITS files with WSTART1Started by:jsmoker, 11/17/2015 12:03PM
Hello,

I am working on some data reduced with
the UVES pipeline. The "merged" spectrum
produced by the pipeline has ripples in
it hence I am hoping to do the last part
of order merging "by hand" in IRAF.

The fits file contains 20 different
orders,...

2036

By: fitz

11/20/2015 04:55PM

implot DONOT show any diagram but mes...Started by:chaorun, 11/26/2015 12:10PM
Hey, guys

I am a new student of astronomy, I just
install IRAF this afternoon.
But I have a question about the command
‘implot’.I need ur help!
My enviroment is a new Ubuntu in Vitrual
BOX.
here is the messy codes:

implot fm920001.fits
s...

1144

By: fitz

11/26/2015 04:01PM

rotate a FITS file and update the WCS...Started by:iraf_astro, 12/05/2015 07:17PM
Hi,

I had been struggling with the following
problem. I have a FITS image, which I
would like to compare to another FITS
image. I found the task " imrot" in IRAF
under wcstools, which performs this
task, but unfortunately only for
multiples of 90. I ...

1966

By: fitz

12/05/2015 07:41PM

Bug in IRAF install scriptStarted by:astrorafael, 12/15/2015 03:32PM
Hi:

I have found a small bug trying to
install IRAF. Running instal script
--system gave me an error in line 1006

Installed IRAF wSystem account with bash
as the SHELL

Patched the script like this

[code]1006c1006
< if (( "$err_seen...

674

By: astrorafael

12/15/2015 03:32PM

Help with WCSStarted by:Diego Farías, 04/28/2015 04:47PM
Hi everyone, I'm new in this forum and I
would like you to give me some advices
about a problem I've had with WCS:

I have a set of FORS2 polarimetric
images, and for some reason the WCS is
messed up in the slits; for this I'm
using a reference image ...

1372

By: Diego Farías

12/16/2015 10:27PM

CCMAP & WCS & PIXEL SCALEStarted by:Diego Farías, 12/17/2015 02:46AM
I have a question guys... Does CCMAP
have a limitation of pixel scale (as a
fitting parameter)? I'm working with
images of 0.125 arcsecond/pixel and I
have encountered problems with CCMAP and
plate solutions.

As a 'safety test', I've tried to
const...

707

By: Diego Farías

12/17/2015 02:46AM

FITS kernelStarted by:shaw, 12/21/2015 10:52PM
I'm trying to select FITS MEF files
based upon information that is split
between the PHDU and the HDUs. For
whatever reason, the file from the
(Gemini) archive has INHERIT=F. I
thought clever use of FITS kernel
features would allow me to use hselect
to ...

827

By: fitz

12/22/2015 03:10AM

Which precession model?Started by:Sergei Schmalz, 01/17/2016 10:45PM
Hello!

Which precession model is used by the
'precess' task of the 'noao.astutil.'
package? If it's the one suggested by
the IAU in 1984 (based on IAU 1976
system of astronomical constants), then
are there any plans to replace it by a
newer model IAU...

833

By: fitz

01/17/2016 10:58PM

LACOS ProblemStarted by:sapna, 01/04/2016 05:04AM
I am from India , I am using lacos_spec
package for removing cosmic rays for my
spectrum, I have 5-6 files (fits file)
in a directory in which I am using this
package, but I need to run lacos_spec
one by one for each file. Is there any
way in which i ca...

1292

By: sapna

01/27/2016 06:00AM

Starting IRAFStarted by:ircarrascal, 01/22/2016 06:58PM
I did an mkiraf inside /home/ivan/IRAF
and then a script like this:

cd ~/IRAF
xgterm -sb -title "Image Reduction and
Analysis Facility (IRAF)" -e "ecl"
&

which I saved in my bin directory as
"iraf" so that when I type "iraf" in the
terminal ...

1786

By: ircarrascal

01/27/2016 03:50PM

Floating point overflow problem with ...Started by:Richard, 01/26/2016 08:50PM
Hi IRAF People,

I am using msccmatch to match catalogue
stars to mosaic camera data
and after I remove the offending
outliers that were found during the
matching process it asks me:

Accept solution?

I say yes and it throws the error:

ERROR...

1599

By: Richard

01/28/2016 02:36PM

cosmic lacos problemStarted by:sapna, 01/28/2016 07:11PM
I have a script: cosmic.cl as:
!ls *bf.fits> c.in
!sed "s/bf.fits/bfc.fits/g" c.in> c.out
!sed "s/bf.fits/bf.pl/g" c.in> bad.in
string *list1
string *list2
list1="c.in"
list2="c.out"
list="bad.in"
task
lacos_spec=/scisoft/share/iraf/extern/stsd...

1429

By: sapna

01/29/2016 04:45AM

Dispersion axisStarted by:sapna, 01/31/2016 09:42AM
Can any one tell how to check whether
the dispersion axis is along line or
along column ?

1815

By: fitz

02/01/2016 05:31PM

mscred.ccdproc in V2.16 gives ERROR b...Started by:smart, 02/26/2016 10:09AM
I have "upgraded" from IRAF V2.14 to
V2.16 (ecl to vocl) and my code that
worked on the old version does not work
anymore.
I have the old version on another
machine and I checked it is something
that has changed in this upgrade.

The data is ima...

1348

By: smart

02/29/2016 07:52PM

PANIC in `/iraf/iraf/bin.macintel/voc...Started by:sastanford, 03/01/2016 06:03AM
I'm getting this error message when
running the task "simulator" in the
external ucsclris package. I've just
done a new install of iraf, on a Macbook
Pro running Yosemite, following these
instructions:

http://www2.lowell.edu/users/massey/Macsoftware...

1981

By: sastanford

03/02/2016 06:57PM

SDO DataStarted by:CosmicLettuce, 03/10/2016 01:44AM
Hello!

Do you have any suggestions on how to
deal with these compressed FITS tables
from SDO? I'd like to convert them to
regular uncompressed FITS images.

Here are some examples:

http://jsoc.stanford.edu/data/hmi/fits/2016/03/09/

Much Than...

1200

By: CosmicLettuce

03/10/2016 02:22AM

PyRAF and DAOPHOT - ERROR 851 Started by:gmaravel, 03/13/2016 06:09PM
Hello to all!

I have noticed an error when using Pyraf
and the psf command of DAOPHOT. The
error is
ERROR (851, "Cannot restore graphics
world coordinate systems")

and I keep getting that when the script
is attempting to plot the stars to
select...

2629

By: fitz

03/17/2016 02:21PM

Display OverlayStarted by:CosmicLettuce, 03/27/2016 12:40AM
I'm using DS9 and the 'display' task to
display some large (4096x4096) solar
images and an overlay that marks
particular features.

When I do this:

cl> displ image.fits 1
overlay="image.plot" ocolor="red" zs-
zr+ fi+

Where 'image.plot' is a list...

1267

By: CosmicLettuce

03/27/2016 02:08AM

mscgetcat segmentation violation with...Started by:travisrector, 03/30/2016 11:15PM
Hello-

When I run 'mscgetcat' with the catalog
set to usnob1@noao (as shown below):

input = TEaug292015.64819 List of
Mosaic files
output = sh2-170.usno Output
file of sources
(magmin = 9.) Minimum
magnitude
(m...

1578

By: travisrector

04/19/2016 07:28PM

IGI doesn't start...Started by:fabvitali, 04/29/2016 09:05AM
Dear Sirs,

I have set up an automatic procedure to
reduce the infrared images from the
REMIR camera at REM (La SIlla). In this,
I would like to use the IGI graphic
interpreter but I can’t even start
using it. I am using the EXPORT V2.15.1a
IRAF ver...

632

By: fitz

05/05/2016 10:09PM

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