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apall multispec format descriptionStarted by:salis, 01/09/2014 05:19PM
Hello,

Sorry for the basic question but I need
to know the description of bands when I
use multispec format in apall. I could
not find them anywhere. I have four
bands extracted in the final wavelength
calibrated spectrum. The last 2 seem
like the ba...

2620

By: fitz

01/09/2014 05:30PM

Atomic data in STSDAS nebular packageStarted by:aturby, 12/18/2013 05:34AM
Is the atomic data current by default in
the newest versions of IRAF and STSDAS?

Specifically, the atomic data available
in the analysis.nebular package of
STSDAS. In this directory, the most
recent reference is from 2001, besides
one reference from...

1106

By: fitz

12/18/2013 06:34AM

cosmic ray removal helpStarted by:mnicholls, 11/25/2013 03:06PM
I'm very new to IRAF and need to remove
Cosmic Ray hits from my spectra (all
spectra are saved as .fits files and
therefore come in both 1 and 2
dimensions, with various amounts of sky
subtraction, but I'm sure this is a well
known aspect to all you exp...

3708

By: fitz

11/26/2013 05:25PM

Problem with mscred flatcombineStarted by:jonh, 11/14/2013 01:33PM
Hi,

I'm trying to use flatcombine to process
some data but I'm getting an error.

ERROR: Error processing ccd.013.fits
"ccdproc (ims, output="",
bpmasks="", ccdtype=ccdtype,
noproc=no)"
line 38:
mccdred$flatcombine.cl
call...

2314

By: fitz

11/14/2013 03:52PM

Re: A WERID FLUX CALIBRATION PROBLEMStarted by:haha, 11/07/2013 12:35PM
I am extracting a spectrum of a star by
iraf. During the several steps near the
end , I meet a flux calibration problem
.

Anybody knows why?

calibrate
input=@imagelist3//btfc_tran.0001
output=@imagelist3//flux extinct+ flux+
\
extinction="./e...

930

By: haha

11/07/2013 06:24PM

Ecreidentify and DoecslitStarted by:trvaccaro, 10/28/2013 08:33PM
I'm finding wavelength calibration a bit
of a hassle using Doecslit. I have
different comps for each Echelle spectra
and it wants me to ID lines every time.
Is there a way to invoke EcReidentify
during Doecslit's interactive stages of
wavelength calib...

1902

By: trvaccaro

11/26/2013 08:37PM

ECIDENTIFY residual fitStarted by:phntmII, 05/22/2013 04:41PM
Got it, solved!

Thanks,
JR

1050

By: fitz

05/22/2013 04:41PM

Problem with wcs solution for WFI imagesStarted by:johannes1808, 05/08/2013 07:17PM
Hello,

I am currently reducing WFI images with
IRAF/MSCRED package. I have used the
esowfi package to translate the headers
and get a WCS solution. However, the WCS
solution is completely wrong. I have
used the wcs solution WCSASTRM = 34741
(19990902T2...

1531

By: johannes1808

05/08/2013 07:17PM

Error: Cannot open file (tmp$ftmpXXXXX)Started by:fks, 05/02/2013 02:40PM
Dear All,
Can anybody please point us to the
possible causes of the following error
message? (We have already verified that
we have the relevant read write
permissions and the disk space on the
/tmp/ directory, and that the image
files exists in the ...

2502

By: fitz

05/02/2013 02:40PM

imcopy and fits headerStarted by:jcadien1, 04/29/2013 05:37PM
I just now noted something about imcopy.
I have long image strips fro a drift
scan. I use imcopy to slice them into
smaller images. The header doesn't have
a lot of usable info in it. However,
when I do a single copy, such as
imcopy input[1:3000,*] outp...

2067

By: fitz

04/29/2013 05:37PM

pstselect ERROR: segmentation violationStarted by:ping, 11/19/2012 11:31PM
Hello,

I posted the following question last
year but still haven't gotten any
answer.
I would really appreciate if someone can
tell me a solution to this.

Thanks,

Ping
---------------------------------------------

I saw this old post:

> we seem ...

1289

By: fitz

11/19/2012 11:31PM

GFCUbe/GFEXTRACT QuestionsStarted by:fitz, 10/24/2012 12:54PM
[color=red:c127d03563][Note: Forwarded
on behalf of user][/color:c127d03563]

I am using IRAF 2.14.1 on an Ubuntu 32
bit
machine. I am using fits files (data
cubes) from Herschel/PACS. I am looking
at
the [OI] (63microns) emission from the
outflow of...

3043

By: emma

10/24/2012 12:54PM

cosmicrays task segfaultsStarted by:Jason Quinn, 09/09/2012 03:31PM
The cosmicrays task is throwing
segmentation violations every time it is
run. Noticed on v2.16 but occurs on
2.15.x. Had to go back to 2.14.1 before
it worked. I'm running a 64-bit Ubuntu
machine, if that helps. The error can be
reproduced using dev$pix...

2365

By: fitz

09/09/2012 03:31PM

obstime and date-obs: too smart for ...Started by:azangari, 08/16/2012 06:40PM
I'm having an issue passing header
parameters to mag files doing
photometry.

Using either apphot or dataphot I enter
datapars and set obstime to have the
value "date-obs" (which a lot of cameras
seem to have). Date-obs is of the
formula YYYY-MM-DDTHH:...

2321

By: fitz

08/16/2012 06:40PM

PANIC in `/iraf/iraf/noao/bin.redhat/...Started by:ping, 07/20/2012 02:59PM
Hello,

I am using task kpnoslit/identify. It
works if I accept all the identifies
lines and write in the database. Since
the fit is not so good, I need to delete
a few unfit lines to make a better fit.
As soon as I do that, I got error:

PANIC in `/...

2757

By: fitz

07/20/2012 02:59PM

errors iin calibrationStarted by:giannicatanzaro, 07/17/2012 09:14AM
hi all

I have a question regarding lambda
calibration.
I realized I did a mistake in the
calibration of some spectra, is there
a method to delete the calibration and
start from scratch?
If I apply refspec and dispcor, iraf
apply a new correction over...

2030

By: valdes

07/17/2012 09:14AM

splot log filesStarted by:massey, 05/12/2012 07:13PM
A colleague asked me this, and I didn't
have a good answer for her. I suspect
this is an issue that goes beyond splot.

"'I've noticed a couple of times that if
I exit splot catastrophically, i.e. I
hit an incorrect key and have to get out
of splot and...

1890

By: fitz

05/12/2012 07:13PM

"soar" missing in "obs...Started by:cosmologist, 03/20/2012 03:02AM
I am looking in the list of telescopes
in the observatory task, but I can't
find SOAR. Is there a way to update the
list?

This is what I get:

[code:1:86e3992e48]
WARNING: Observatory entry soar not
found in database noao$lib/obsdb.dat
kpno: ...

2212

By: fitz

03/20/2012 03:02AM

'Standard' task problemStarted by:marco.03, 02/08/2012 05:56PM
i have encountered an
ERROR: floating point divide by zero
when using the noao.onedspec.standard
task. I have traced the problem back to
the extinction curve file, which I have
created from the data found in table B.1
in this paper:[url]http://adsabs.ha...

1353

By: valdes

02/08/2012 05:56PM

normalizing a spectrumStarted by:Labibah, 11/08/2011 02:00PM
Hello,

I have a few thousands of
multi-extension spectra and I am trying
to normalize them using the flux at
5100A -I want to take the average for
~100A around 5100A and use it for the
normalization.

I tried using noao.onedspec.continuum by
using the...

2370

By: massey

11/08/2011 02:00PM

Deleting points in the wavelength cal...Started by:cosmologist, 09/12/2011 04:42AM
In the data reduction manuals when
talking about the wavelength calibration
step, it is mentioned that when doing
the fit, if some points are really far
away from the horizontal line one should
simply delete them... but I don't
understand what that mean...

2598

By: favilac

09/12/2011 04:42AM

nstar grp and psgStarted by:azangari, 09/02/2011 03:14PM
In my (or perhaps everyone's) version of
daophot, I get .psg file as output from
running psf. However, nstar's default
group file input is .grp. I have had no
trouble manually inputting the psg file,
but would like to know if I can modify
either psf o...

2366

By: azangari

09/02/2011 03:14PM

ImplotStarted by:tsaab, 07/12/2011 03:28AM
I want to compare two images using
implot. Is there any way to display
both images in the same implot window?
I can display separate plots in
different windows, but it does not help
out as much.

1403

By: fitz

07/12/2011 03:28AM

is it possible to adjust the intensit...Started by:china_108, 07/10/2011 03:58PM
I generated a psf using the psf task and
I need to adjust its intensity to apply
it to an over-exposed star. Is it
possible to do it in iraf?

1320

By: valdes

07/10/2011 03:58PM

Annotating plots using gcurStarted by:weistrop, 06/27/2011 07:13PM
I'm trying to label plots generated by
sgraph, in particular the vertical axis.
Using =gcur I've been trying to set the
up and path parameters in txset so that
the vertical axis label reads from low
to high with the letters 'lying on
their backs', as ...

1787

By: fitz

06/27/2011 07:13PM

any task to subtract a star othan tha...Started by:china_108, 06/23/2011 09:54AM
I've got a psf generated by tiny
tim(http://tinytim.stsci.edu/cgi-bin/tinytimweb.cgi).
It is in fits format. Now I am trying to
subtract an unwanted star using this
psf. Other than the task substar, is
there anything else I can use? I don't
want to use ...

1421

By: valdes

06/23/2011 09:54AM

The 'flux' parameter in 'transform' taskStarted by:Kimmo, 06/21/2011 09:39AM
Hi

I am using the 'transform' procedure to
correct the wavelength-curvature of
longslit spectra.
The procedure has the parameter 'flux',
which is used to control the
conservation of flux per pixel.

Our measurements are so that we are
measuring scat...

1243

By: valdes

06/21/2011 09:39AM

Problem when using <msctpeak>Started by:Jun Xu, 06/10/2011 04:29AM
Hi all!

I've been troubled by a problem when I
use the command <msctpeak> to
update the WCS. The parameters are
setted as below.
---------
mscred> mscfinder
mscfinder> epar msctpeak

I R A F
Image Reduction and Analysis
F...

1682

By: valdes

06/10/2011 04:29AM

Bug? Does FITPSF output RSIGMA or HWHM?Started by:csimpson, 06/02/2011 05:18PM
Edit: should have said I'm running IRAF
V2.15 on Fedora 13.

I'm running digiphot.apphot.fitpsf on an
image to fit circular gaussians
(radguass) to stars but find that the
values it outputs are always too large
when compared to imexam. The help says
tha...

1628

By: valdes

06/02/2011 05:18PM

Pydrizzle Errors (and missing SkyField?)Started by:ReiCow, 05/26/2011 01:29AM
Hello,

I am running STSCI_Python 2.10, with
python 2.5.4, and IRAF 2.14 (have tried
2.15 and 2.12 as well). When I try to
run the following command in Pyraf (on
an ACS file, after importing pydrizzle),
I get:

--> pydrizzle j8f631jaq_flt.fits
Fil...

1386

By: fitz

05/26/2011 01:29AM

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