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mscrec/ccdproc & responseStarted by:fitz, 09/24/2010 03:55AM
Hello,

Apologies if I sent this to to wrong
address, anyway I didn't find any other
candidate address (after a quick search
in iraf.net).

Anyway, this post is about a bad
combination of
mscred.ccdproc &
twod.longslit.response
When reducing MEF-sp...

1510

By: fitz

09/24/2010 03:55AM

daopars.mergerad problemStarted by:fitz, 06/29/2014 02:29PM
[color=red][Moderator's Note: Forward
from story posting][/color]

I'm running a script to perform psf
photometry on a series of images. Doing
this I don't want stars to be merged.
Therefore I set daopars.mergerad to 0.0
but stars still get merged?...

1512

By: fitz

06/29/2014 02:29PM

flatshifts ??Started by:dbrenner, 09/15/2009 08:27PM
imshift ( input = image, output =
image//"[0,overwrite]", xshift = -2,
yshift = -1)

ERROR: Cannot open file (flatshifts)

What is flatshifts and why after using
imshift for years does this message
decide to show up?

Thanks.

1513

By: dbrenner

09/15/2009 08:27PM

Allstar Error: Parameter not a legal ...Started by:thatsaskguy, 03/23/2010 06:51PM
Hi all,

I'm wondering if you would know the
cause of the following:

ERROR: Parameter not a legal number
(version)

When I run allstar. It only happens on
my Mac, no on my Linux machine. All the
settings are the same between the two as
far as I can t...

1514

By: thatsaskguy

03/23/2010 06:51PM

Passing changing coordinates to the p...Started by:JanRap, 09/16/2009 08:51AM
Hi

I ran the imcentroid task on a sequence
of about 300 fits frames and I now have
the correct coordinates of the three
sources I am interested in for each of
these frames. (Due to tracking issues
the sources sometimes jumped
substantially from one fra...

1514

By: valdes

09/16/2009 08:51AM

QUERY REGAARDING HOW TO PLOT AZIMUTHA...Started by:bijusaha, 08/04/2023 12:48PM
I have used the ELLIPSE task to obtain
the radial variation of intensity for a
galaxy but that is averaged over
azimuthal angle for each ellipse defined
by some semi major axis. How to extract
the how to obtain the variation of
intensity with azimuthal ...

1515

By: bijusaha

08/04/2023 12:48PM

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...

1518

By: valdes

07/19/2021 11:19PM

ximtool helpStarted by:fitz, 10/19/2009 11:46PM
test blank

1520

By: fitz

10/19/2009 11:46PM

next image display in phot taskStarted by:Santiago, 11/25/2008 03:04AM
Hello, i'm doing photometry with phot
task in IRAF and i choose to do it in
interactive mode. I done the epar phot
and set up variables, like @list of
images and this is my problem. I run ds9
and display the first image of my @list,
execute phot task an...

1521

By: fitz

11/25/2008 03:04AM

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

MultidrizzleStarted by:khl, 08/05/2009 01:04PM
Hi,

I am using multidrizzle (for the first
time) on wfpc2 data. Every time I use
multidrizzle, the pixel values of my
final drizzled image are ourageously
small (~ 0.0001).

I was wondering if this is a common
thing and can be fixed by doing
something...

1523

By: fitz

08/05/2009 01:04PM

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

Aperture and area in PhotStarted by:RMendez, 10/22/2010 03:35PM
I am using noao/digi/daophot to do
aperture photometry.

In photpars I set the aperture to a
given radius.

I do phot on an image, and in the output
photometry file there is an entry for
"AREA". In general, it is quite close to
PI x Radius^2, but not ex...

1533

By: fitz

10/22/2010 03:35PM

Doppler correction of double-lined sp...Started by:delta_kuadrant, 09/20/2009 09:44PM
Hi again,

I have a spectra (echelle) that has a
double-line features.
how i apply a doppler correction for
each components using dopcor?
do I have to do correction for each
radial velocities (primary and
secondary) and then co-added the
results?
any su...

1536

By: delta_kuadrant

09/20/2009 09:44PM

STA2 CCDRED translation fileStarted by:valdes, 03/22/2010 08:24PM
[b:796a6a58c8]From:
[/b:796a6a58c8]Beatrice Mueller
<mueller@psi.edu
([email]mueller@psi.edu[/email])>
[b:796a6a58c8]Date: [/b:796a6a58c8]March
20, 2010 11:13:04 AM MST

[b:796a6a58c8]To: [/b:796a6a58c8]Frank
Valdes <valdes@noao.edu
([email]val...

1538

By: valdes

03/22/2010 08:24PM

Replacing cosmic raysStarted by:maineguy, 02/09/2011 05:14PM
I'm trying to add two images while
removing cosmic rays in the process. If
I use crreject in imcombine in IMAGES
the pixels in the final image will only
have half the pixel value as the
surrounding pixels if there was a cosmic
ray in one of the images ...

1539

By: maineguy

02/09/2011 05:14PM

Problem with mscred.zerocombine: am I...Started by:iz, 07/22/2009 04:56PM
Hello,

I'm a novice user, trying to play with
the data from ESO NTT (EMMI detector) in
mscred package. Data are in
multi-extension FITS files (since
there're 2 CCDs in that detector) and I
got errors in simple tasks like
obtaining master bias frame:

[...

1539

By: iz

07/22/2009 04:56PM

Run tasks in background from eparamStarted by:itso, 07/21/2008 03:12PM
Is there any way how to run tasks in
background if you call them using epar
name_of_task? I know that it can be done
if one types name_of_task
query_parameters &, but I don't know
how this can be done from epar
environment. Any suggestions?

1539

By: fitz

07/21/2008 03:12PM

fixing headersStarted by:Angelap, 04/11/2011 05:16PM
Hello,

I have taken some data but the headers
values have some problems.
The DATE-OBS keywords are correct (it
includes the correct date and time) but
the RA,DEC,EPOCH,ZD,HA,ST and airmass
are wrong. I was able to use hfix to fix
the EPOCH,RA and DEC b...

1542

By: Angelap

04/11/2011 05:16PM

problem with "ccfind"Started by:nakisa, 10/02/2009 09:14AM
hello
I want use ccfind and then ccmap to do
astrometry with HST data. (according to
this recipe
http://iraf.noao.edu/irafnews/apr98/irafnews.14.html
).
I use GSC.1 which is the guide star
cataloge of HST observation.

and write
ccfind GCS1.txt n...

1543

By: nakisa

10/02/2009 09:14AM

problem with REIDENTIFY - no features...Started by:ovince, 06/23/2017 02:49PM
Hi All,

I am learning spectral reduction,
calibration etc., so I started with
tutorial described in ccd2.ps and
spectra.ps. All went fine but now I have
problem to reidentify features in 1D
spectrum using a reference one. This is
the actual output m...

1545

By: ovince

07/13/2017 08:26AM

Login work from terminal but now from...Started by:gcardonav, 12/08/2010 09:14PM
Hi:

I finished installing the newer version
of IRAF and X11 on my laptop. The thing
that's wrong with it is that I can only
get IRAF or ximtool to work if I open an
xterm or xgterm window from "Terminal"
application. It's not a big issue, just
annoying...

1548

By: fitz

12/08/2010 09:14PM

iraf cannot locate the star I wantStarted by:china_108, 01/04/2009 01:14PM
I use iraf apphot package phot task to
manually locate the star(by pressing
space bar) I want. The coordinates of my
target are, say, x=400, y=300 but when I
pressed space bar on the star I want, it
located the star next to it, which is a
brighter one.
...

1548

By: fitz

01/04/2009 01:14PM

mscsplit issue with ACS files?Started by:ReiCow, 06/24/2011 10:01PM
Hello,

I am trying to mscsplit an ACS file, and
I am getting an odd result. It correctly
makes 7 files, however files 4-7 are
mirrors of 1-3.. all are chip 2 (instead
of chip 1 for one set, chip 2 for the
other). Is there something special I
need to do...

1553

By: valdes

06/24/2011 10:01PM

msccmatch works, then second try failsStarted by:keflavich, 02/05/2013 06:48PM
I successfully ran msccmatch on an image
where I had come up with a decent fit
using msctpeak:

[quote:279c35b722]msccmatch
S20130131S0063.fits[1]
robberto_plaintext.txt usebpm=no
MSCCMATCH:
S20130131S0063.fits[1]:
3838 input coordinates
3799/...

1555

By: keflavich

02/05/2013 06:48PM

question - DATAMINStarted by:szalaitom, 03/08/2011 09:49AM
Hi,

I have a problem with the apphot/phot
package. I would like to carry
out aperture photometry on some
template-subtracted images. I only
need the flux value within the given
aperture radius, without any sky
subtraction (to reduce the possible
contam...

1556

By: valdes

03/08/2011 09:49AM

GIF output from IRAF graphing programStarted by:dougmink, 08/28/2009 08:54PM
I want to spit out a gif file to
standard output from a graphics program
like splot or one of my rvsao tasks to
serve over the Web. Is there a way to
do this using the g-gif graphcap entry
in some way? Ideally, I would like to
avoid creating an interm...

1556

By: fitz

08/28/2009 08:54PM

help !! cannot open file (093ab01.im...Started by:nefulxp, 11/18/2008 11:47AM
I have finished the imexam task and get
the value of FWHM and STDDEV, but when i
precise the apphot package, there is
something wrong with it.
In task datapars, i have set fwhmpsf=5,
sigma=8, datamin=0, datamax=65000,
readnoise, epadu, exposure, airmas...

1556

By: fitz

11/18/2008 11:47AM

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

ccmap doesn't create solution fileStarted by:jacob, 12/13/2008 06:18AM
I am using ccmap and cctran to do
astrometry. However, after creating the
database file with ccmap, cctran always
returns the output equal to the input.

I believe this is because ccmap just
won't create a solution file. However,
a results file and a ...

1558

By: valdes

12/13/2008 06:18AM

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