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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...

2487

By: fitz

01/11/2007 10:21PM

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

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...

2449

By: fitz

04/06/2010 05:42PM

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 ...

3574

By: zarate

12/18/2005 05:38PM

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...

1683

By: valdes

09/15/2008 08:38PM

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...

915

By: paco

05/11/2017 08:51PM

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

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...

1042

By: fitz

03/06/2015 05:14PM

shift and magnifyStarted by:dbrenner, 02/13/2009 08:16PM
I want to shift and then demagnify an
image. The final size should be the same
size as the original and the final
center should be the same center as in
the shifted image.

Any help would be appreciated.

Thanks.

3323

By: dbrenner

02/13/2009 08:16PM

Shifting region of interest in splotStarted by:tomph, 05/02/2008 10:30PM
Hi all
I am working with splot examining
spectra, after flux calibration there is
a region (sub 4500 Angstroms) where the
data is flawed (due to division using
sarith), this I wish to remve or ignore.

I need to take a continuum from the
spectra so what...

2344

By: tomph

05/02/2008 10:30PM

sigma spectra in spectoolStarted by:phil, 11/17/2005 06:29PM
Hi Achim,

I apologize for the delayed reply.

On Fri, 04 Nov 2005 16:50:28 -0800
tappe@ipac.caltech.edu wrote:

> Hi Phil,
>
> great, the method described below
works for me. There is one
> remaining problem that I have with
spectool, and...

3083

By: phil

11/17/2005 06:29PM

sigma spectra in spectoolStarted by:Guest, 10/11/2005 03:46PM
On Tue, 04 Oct 2005 17:16:00 -0700 Achim
wrote:

> Hi Phillip,
>
> I am using SPECTOOL to fit Gaussian
line profiles and would like to
> use the error estimation function.
However, I have difficulties
> assigning a sigma spectrum to th...

5238

By: Guest

10/11/2005 03:46PM

Silent APALLStarted by:gzhou, 03/01/2011 04:35AM
Hi,

I'm trying to write a pyraf script for
apall. I have interactive and review
turned off when running apall via the
script, but can't find a way to remove
the prompt

Number of apertures to be found
automatically (1):

even though I set the aperture...

1644

By: gzhou

03/01/2011 04:35AM

simultaneous fit to multiple arclampsStarted by:lucy1023, 05/24/2015 10:44PM
Is there a way to get IRAF to fit
multiple different arclamps
simultaneously, without adding the
arclamps together (which would lead to
some blending)? e.g., say I'd like
Identify to find all the features in a
HgNe lamp, then separately find all the
fea...

770

By: lucy1023

05/24/2015 11:19PM

simultaneous graphic and text windows...Started by:hartigan, 12/24/2008 01:51AM
Does anyone know how to get xgterm to
open simultaneously displaying both
the graphics and text windows? I can get
the configuration I want by opening
an xgterm, and ctl-rightbutton to get
menu, and check Show Graphics Window,
but I want to set the reso...

2026

By: hartigan

12/24/2008 01:51AM

Size of output frame after GEOMAP/GEO...Started by:aoxsic, 02/17/2009 04:59PM
Dear IRAF experts,

How is the size of the output
transformed image calculated when using
GEOMAP/GEOTRAN to align?

I have 2 images, the reference is (5951
x 5992), the image to be aligned is
(2011 x 1970).

lapr GEOMAP:
input = "nd200031.xymatc...

2689

By: aoxsic

02/17/2009 04:59PM

Sky flatsStarted by:cosmologist, 03/01/2011 01:30AM
In the manual I am following it says
that skyflats when combined should be
scaled by "mode", but my skyflats have
different exposure times, can I scale
them by exposure time instead? (both
exposure time AND mode are different how
do I deal with such a c...

4072

By: dschumac

03/01/2011 01:30AM

Sky Subtraction (fwd)Started by:fitz, 07/21/2009 03:17PM
Hi all, sorry I have a problem with sky
subtraction of 1D extracted wavelength
calibrated spectra. Since sky spectrum
is shifted with respect to the science
objects, how can I apply sky subtraction
with skytweak? can anybody help me?
thanks a lot

[colo...

1949

By: valdes

07/21/2009 03:17PM

Sky subtraction problem in dohydraStarted by:paco, 04/23/2009 11:00PM
Hi folks,
I am trying to reduce some CTIO Hydra
data--the first time at this for me.
I'm able to run DOHYDRA just fine up
until it tries to pull out the sky
fibers and combine them to form a sky
spectrum. It does not find any, and
fails with the outp...

2199

By: valdes

04/23/2009 11:00PM

sky subtructionStarted by:ebru, 08/26/2008 07:55AM
I study SNRs and I want to learn how sky
subtruction is performed on a
spectroscopic data since diffuse ISM is
known to produce a spectrum which is
quite similar to that of SNR, and the
therefore contribution of such diffise
emission needs to be proper...

1556

By: valdes

08/26/2008 07:55AM

skyline removal using apallStarted by:ac, 05/24/2008 08:14PM
I was wondering how to subtract the
skylines from my image. I have vertical
skylines across the entire field, and my
object line runs horizontal. I used
apall to define an aperture across the
image, and then defined my background,
but it did not remove ...

3611

By: valdes

05/24/2008 08:14PM

small correlation height of fxcorStarted by:vega, 02/11/2011 07:16AM
Hi Fitz,

I'm Vega. My currently work is to
measure the radial velocity of variable
stars. I found that fxcor task has been
widely used to measure the 'rv' of
celestial objects. The objects that I
working on are the stars which have
emission lines like ...

2583

By: vega

02/11/2011 07:16AM

SNOOPYStarted by:patB, 07/18/2007 07:03PM
I am having trouble tracking down the
SNOOPY external psf package from Padova,
does anyone know how I can get in
contact with the developers? thanks in
advance.

2715

By: fitz

07/18/2007 07:03PM

Soar Optical Imager mosaicingStarted by:Guest, 10/13/2005 09:50PM
[b:0e9e7fbc8e]From:
[/b:0e9e7fbc8e]Eduardo Cypriano
<cypriano@ctiosz.ctio.noao.edu
([email]cypriano@ctiosz.ctio.noao.edu[/email])>[b:0e9e7fbc8e]Date:
[/b:0e9e7fbc8e]September 28, 2005
11:44:01 AM MST
[b:0e9e7fbc8e]To: [/b:0e9e7fbc8e]Frank
Valdes &...

2835

By: Guest

10/13/2005 09:50PM

software problemStarted by:Guest, 11/04/2005 07:47PM
Hello Claudia,

The situation gets a little confused
because of different versions of
XImtool and DS9 that people use. The
cursor readback depends on
certain behaviors of the display
servers. It is likely you are using
DS9 which does not correct...

4093

By: fitz

11/04/2005 07:47PM

software problemStarted by:Guest, 10/28/2005 06:21PM
We are having a problem using the
package msczero and we
are not able to find the solution.

When we start msczero, it loads our
image, but when we try
to do anything on the image (like
pressing x), we get the
message:

the cursor is not in an image

Do...

2577

By: Guest

10/28/2005 06:21PM

Solution for dispcor having no effectStarted by:LMCBoy, 11/22/2006 10:05PM
Hello,

Just wanted to post a non-obvious
solution to a dispcor problem I had
recently. I was having trouble gettijng
dispcor to do anything to my spectra.
It would run without error, and set the
DCLOG keyword properly, but would not
apply any wavelen...

3103

By: LMCBoy

11/22/2006 10:05PM

SOS!!!! - problem with response taskStarted by:danila, 07/03/2006 11:46AM
Hello everybody,

Please, help.

I have some problem with response task.
This problem has already
worry me. :(

The heart of the problem in few words:

I set parameters for response:

PACKAGE = longslit
TASK = response

calibrat= Fl...

6872

By: danila

07/03/2006 11:46AM

specifying wavelength ranges for fxcorStarted by:massey, 01/14/2008 07:41PM
Hi, Mike et al---

I'm using fxcor for the first time in a
couple of years, and need to remind
myself how to specify the wavelength
range for my program objects and
standard velocity templates. The data
are dispersion corrected, of course. I
want
to r...

2263

By: fitz

01/14/2008 07:41PM

Specplot No Spectra definedStarted by:raulepuebla, 03/31/2011 01:31AM
Hi!

I just installed the last version 2.15
for linux64. I tried to use the specplot
task, but the screen says: "No defined
spectra". I already tried installing
from binary and from source files, but
the results is the same.

Splot runs ok! shows the sp...

3906

By: fitz

03/31/2011 01:31AM

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