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Last Post

sgraph error barsStarted by:gbhw, 03/06/2015 03:46PM
Hello,

Both sgraph and pltpar indicate "bar" as
an option for pltpar.errtype. However,
it is not recognized when applying
sgraph after typing pltpar.errtype="bar"
(either in iraf terminal or in epar mode
for pltpar):

tbplot> sgraph
ambiguous abbr...

1040

By: fitz

03/06/2015 05:14PM

sgraph and labelsStarted by:rjvo, 10/31/2010 02:37PM
I can plot a
graph:[code:1:2c9ac7116b]sgraph 'tab x
y'[/code:1:2c9ac7116b]
I have also a label in the table for
each pair of (x,y). How can I put it on
the plot automatically?

1740

By: fitz

10/31/2010 02:37PM

Setting the image center in msctpeakStarted by:paco, 05/11/2017 08:51PM
Hello,

I am using msctpeak for tweaking the WCS
on various images---some from mosaic
detectors, others from single-chips.
msctpeak is really convenient because of
its nice interactive features (vs using
ccfind and ccmap, for instance).

My problem...

912

By: paco

05/11/2017 08:51PM

Setting b_sampl in doecslitStarted by:jsmoker, 09/15/2008 08:38PM
Hello,

I often use doecslit within
noao.imred.echelle in order to reduce my
echelle data. What I would like to know
is how to set a background region
a-priori i.e. without using the 'b' key
once I am running the package (or A,b to
set all background a...

1681

By: valdes

09/15/2008 08:38PM

setairmass taskStarted by:zarate, 12/18/2005 05:38PM
Hello;

Please look at the iraf help for
setairmass for
possible application information. The
particular problem
with your image I do not understand.
Please give more
details of what you want to do.

Please refer your questions to the
forum ...

3572

By: zarate

12/18/2005 05:38PM

Setairmass ProblemsStarted by:jtg0819, 04/06/2010 05:42PM
I have edited the appropriate parameter
file in order to add my observatory and
its information to the list of
observatories that setairmass uses.
Whenever I try to use setairmass I get
the error, "OBSGETD: Observatory
parameter not found." Also, when I...

2447

By: fitz

04/06/2010 05:42PM

setairmass and psfStarted by:patB, 10/31/2006 07:27PM
hi there, I posted a topic a couple
weeks ago with a pretty vague (sorry)
question regarding setairmass and the
psf. The subject title was "Psf and
Setairmass," so the original thread is
there. I havent got another response,
so i thought i'd create a...

4312

By: azangari

10/31/2006 07:27PM

setairmassStarted by:patB, 01/11/2007 10:21PM
so , when i try to set airmass for my
images i get the following error:

Coords not precessed for m51_v.fits:
check 2000
SETAIRMASS: Observatory parameters for
GLAST Optical Robotic Telescope
Warning: OBSGETD: Observatory parameter
not found

Im learnin...

2486

By: fitz

01/11/2007 10:21PM

Sensfunc: how is it defined?Started by:westra, 03/14/2006 08:00AM
I have several standard stars taken on
different nights, but all with the same
instrument. First of all, when I go
through the whole reduction, I get in
the procedure
[code:1:9b01b1698b]sensfunc[/code:1:9b01b1698b]
that the stars are not on the same
mag...

6760

By: westra

03/14/2006 08:00AM

Sensfunc: ERROR: No degrees of freedomStarted by:jtello, 01/20/2011 10:15PM
I have problems with sensfunc. When I
run sensfunc, I got the following
message:

>sensfunc
Input standard star data file (from
STANDARD) (std): std
Output root sensitivity function
imagename (sens): sens
ERROR: No degrees of freedom

Here my std f...

3101

By: valdes

01/20/2011 10:15PM

SENSFUNCStarted by:cosmologist, 07/27/2009 06:14PM
When I run SENSFUNC to my fits files, I
don't get any file starting with 'sens'
as expected. I read the help page, but I
couldn't figure out the problem, any
idea? :!:

1522

By: fitz

07/27/2009 06:14PM

segmentation violation in fitparamsStarted by:massey, 08/22/2016 07:14PM
I'm using fitparams,using 2.16.1 EXPORT
on a Mac and I'm getting a segmentation
violation. Here are my parameters:
observat= standobs List of
observations files
catalogs= nlandolt List of
standard catalog files
config = ...

1343

By: massey

08/22/2016 08:18PM

Segmentation violation from SCOMBINEStarted by:drupke, 11/30/2010 10:02PM
I am trying to combine some spectra, and
I am getting unpredictable results,
sometimes with "segmentation
violations," sometimes not. For
instance, the first of the following
commands works, but not the second:

ecl> scombine
1xtrno04,1xtrno05,1xtrn...

2689

By: fitz

11/30/2010 10:02PM

Segmentation fault errorStarted by:sarvin, 01/17/2008 06:13PM
Dear All,

I get the error of: Segmentation fault
as I try to run my code compiled with
"ifort" Does anybody know what the
problem is?

Thanks in advance!
Sarvin

2587

By: fitz

01/17/2008 06:13PM

Seeing the algorithm of an IRAF programStarted by:rohit, 10/02/2007 08:51PM
Thanks Fitz for your help in the
previous question.

I would like to know how I could find
the code written for a particular IRAF
task. That is, how FXCOR task is
written, that is see the code.

Please let me know.

Thanks!

3476

By: fitz

10/02/2007 08:51PM

SDSS catalogs in astcatStarted by:vall, 03/23/2010 11:42PM
Hello,

I have a simple question. Is it possible
to access the SDSS catalogs from the
ASTCAT package and if yes, what changes
should be made to the relevant database
files? I would like to be able to access
the images, as well as the photometric
and ast...

1633

By: vall

03/23/2010 11:42PM

Scrutinizing spectra within fxcorStarted by:swortel, 05/17/2007 03:07PM
I am crosscorrelating spectra with fxcor
to determine RV shifts for absorption
lines. The spectra are from echelle
observations. Each spectrum is the
concatenation of all the echelle orders,
and is therefore extremely long. (Each
spectrum is about 320...

2905

By: fitz

05/17/2007 03:07PM

scripts and stringsStarted by:, 11/12/2008 07:12AM
Hello everybody out there

Question # 1
I got a list of binary tables to be
converted to iraf fits images. I've
written the procedure script, tab2spec
(infile, outfile) which is modified from
Dr. Jerry Kriss' website. The first
lines are

procedure tab2...

3479

By:

11/12/2008 07:12AM

Script using imsurfitStarted by:Gordon, 04/09/2009 11:29PM
Hi,

I am trying to use imsurfit to fit a
plane to data within a circular region
of an image. Right now I have

imsurfit(infile, outfile, 2, 2,
cross_terms="no", type_output="fit",
region="circle", circle=?)

The x and y coordinates and the radius
of t...

2177

By: Gordon

04/09/2009 11:29PM

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

scopy: wavelength range problemStarted by:chewbacca, 08/27/2014 07:51PM
I am using scopy to copy portion of a
spectra with starting and ending
wavelengths w1 and w2. The rebin
parameter is set to yes, so I would
expect w1 and w2 to be exact (the
spectra covers a region well beyond w1
and w2).

However, in some cases scop...

677

By: chewbacca

08/27/2014 07:51PM

scopyStarted by:Guest, 07/16/2009 07:26PM
Hi

I am trying to extract a single spectrum
from multi-spectrum(.ms.fits)
files using scopy. My data consists of
300 multi-spectrum aperture fits
files. Each aperture contains the
following: sky-subtracted spectrum,
non-sky-subtracted spectrum and...

3320

By: rohit

07/16/2009 07:26PM

scombine with local snr weightStarted by:chewbacca, 08/17/2014 11:50AM
Is there a way to use scombine with the
weights in the overlap regions being the
local snr (signal to noise ratio)?

This is a fairly standard use and it
seems scombine doesn't support it...
what is the easiest way to do this in
iraf? I have a fairly ...

742

By: chewbacca

08/17/2014 11:50AM

scombine of different aperaturesStarted by:massey, 06/15/2009 05:46PM
I have various "ms" images that contain
multiple apertures all of the same
object,
and I'd now like to scombine them. But,
scombine is very keen to do the
combining aperture by aperture. How do
I get around this?

In other words, I'd like to run scomb...

1454

By: massey

06/15/2009 05:46PM

scombine missing in 2.12.2a hydra and...Started by:massey, 09/19/2006 03:58AM
Hi, Mike, Frank, etc---

I'm having a very peculiar problem
running dohydra on my Mac. I can't
swear that I've done this before.
Anyway, everything seems fine until it I
do the sky rejection. Then I get an
error message saying it can't find
scombine....

3457

By: massey

09/19/2006 03:58AM

Scombine ERROR: floating point invali...Started by:morrisonss, 04/19/2013 02:26PM
I tried running the task scombine using
the command:
[code:1:f1c3c227be]scombine
input=*_H*L_2.fits
output=TXS0827_HL_2.fits w1=
3776892.899268 dw=8.713374e-01
combine=average
reject=none[/code:1:f1c3c227be]

When I do I get the error:

[code:1:f1c3c227...

4049

By: morrisonss

04/19/2013 02:26PM

Scombine changes dimensionStarted by:rohit, 03/31/2010 11:25PM
I have two sets of two files which I
combine to create two individual files.
I have been using SCOMBINE task for
this. It has worked for most expect
this. I do not understand why the task
is changing the dimensions. Here is what
the imeader command give...

1330

By: fitz

03/31/2010 11:25PM

scombine and odcombine -- sum versus ...Started by:jkwerk, 02/07/2008 05:15AM
Hello,

When combining 3 different spectra of
the the same object (scombine or
odcombine), the (summed/averaged -- it
doesn't matter) output "combined"
spectrum looks basically exactly the
same as just ONE of the input spectra
(i.e. same noise and s...

2423

By: valdes

02/07/2008 05:15AM

scaling and weighting in IMCOMBINEStarted by:ovince, 06/26/2021 08:17AM
Dear All,

I would like to ask a few things about
IMCOMBINE, COMBINE, FLATCOMBINE tasks.

- I noticed that IMCOMBINE performs
scaling differently than COMBINE and
FLATCOMBINE. Why is it so?

- Why is it not possible to set the
'weight' parameter...

1519

By: valdes

07/19/2021 11:19PM

scale in ZerocombineStarted by:cosmologist, 02/21/2011 06:38PM
I am looking in the help page for
zerocombine, and I have a question about
the "scale" option:

scale = "none"
(none|mode|median|mean|exposure)
Multiplicative image scaling to be
applied. The choices are none, scale by
the mode, median, or mean of t...

3349

By: AnTaR3s

02/21/2011 06:38PM

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