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2753

By: Guest

11/12/2005 04:37AM

a problem about the photStarted by:Guest, 11/12/2005 03:04PM
Dear Sir,

I have a problem about the output mag.
values of the digiphotx package.

Recently, I always get the mag. values
larger than before in both apphot and
daophot packages. The zero point is the
same before and now.
I set the parameter...

2713

By: Guest

11/12/2005 03:04PM

problem with ccdprocStarted by:Guest, 11/13/2005 05:24AM
I'm having trouble with the background
correction in ccdproc. I have
created an average zero image called
Zero.fits, which looks fine. But
when I process my objects with ccdproc,
the routine is processing
Zero.fits for the background correction,
and i...

2669

By: Guest

11/13/2005 05:24AM

Fwd: xdimsum.makemask: duplicate keyw...Started by:valdes, 11/14/2005 07:40PM
[b:3ea45658ab]From:
[/b:3ea45658ab]Sergio Gelato
<Sergio.Gelato@astro.su.se
([email]sergio.gelato@astro.su.se[/email])>
[b:3ea45658ab]Date:
[/b:3ea45658ab]November 5, 2005 5:02:37
AM MST
[b:3ea45658ab]To: [/b:3ea45658ab]Frank
Valdes <valdes@noa...

2998

By: valdes

11/14/2005 07:40PM

ellipticity and position angleStarted by:valdes, 11/14/2005 07:53PM
Hi Phil,
Unless you want me to put together a
reply on IMEXAM I suggest you look at
the task PSFMEASURE. In the current
version of IRAF it is part of the
OBSUTIL package. To do the
non-interactive job you want you would
make a text file of x/y for a...

3062

By: valdes

11/14/2005 07:53PM

Fwd: ellipticity and position angleStarted by:valdes, 11/14/2005 08:31PM
[b:30bd99962a]From:
[/b:30bd99962a]Philip Massey
<massey@lowell.edu
([email]massey@lowell.edu[/email])>
[b:30bd99962a]Date:
[/b:30bd99962a]November 14, 2005 1:02:07
PM MST
[b:30bd99962a]To: [/b:30bd99962a]Frank
Valdes <valdes@noao.edu ([email]v...

2814

By: valdes

11/14/2005 08:31PM

multiple columns for biasStarted by:valdes, 11/14/2005 09:12PM
Hello Yan,

It is not common to use both the prescan
and overscan columns at the
same time. The standard IRAF tasks for
handling bias (colbias and
ccdproc) do not allow use of more than
one contiguous region for
bias. However, if you wish to do ...

2824

By: valdes

11/14/2005 09:12PM

helplog.37: colbias, ccdproc, fit1d, ...Started by:Guest, 11/14/2005 09:15PM
NUMBER: 37
KEYWORDS: colbias, ccdproc, fit1d,
prescan, overscan
DATE: Mon Nov 14 14:13:04 MST 2005
FROM: valdes

Q: I have a question concerning the
colbias command in the noao.bias
package of IRAF. I am working with a
telescope which uses columns
1-4...

3735

By: Guest

11/14/2005 09:15PM

mscred/zerocombine problemStarted by:valdes, 11/14/2005 09:44PM
Hi David,

There were significant changes in the
parameters for mscred.combine
(as well as immatch.imcombine) where the
old "plfile" parameter
disappeared and others were added.
Combine is the core task used in
other scripts such as zerocombine a...

3119

By: valdes

11/14/2005 09:44PM

rfitsStarted by:Guest, 11/17/2005 06:22PM
Dear Mr. Phillip,

Its been long time we haven't get in
touch.Hope you still remember me.
[img:f2b5c14464]http://us.i1.yimg.com/us.yimg.com/i/mesg/tsmileys2/04.gif[/img:f2b5c14464]
I have a few questions here:
1. Why there is a big different ...

4821

By: zarate

11/17/2005 06:22PM

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...

3081

By: phil

11/17/2005 06:29PM

a problem about the photStarted by:valdes, 11/23/2005 11:05PM
Hello,
There are a number of factors that can
affect the magnitudes. These should
all be identifiable from the help
description. The magnitude depends on
the zero point (obviously), the exposure
time, the area of the aperture, and the
sky. The a...

2980

By: valdes

11/23/2005 11:05PM

Fwd: a question related to display pr...Started by:valdes, 11/23/2005 11:06PM
[b:e1cbc38460]From:
[/b:e1cbc38460]Jinyoung Serena Kim
<serena@as.arizona.edu
([email]serena@as.arizona.edu[/email])>
[b:e1cbc38460]Date:
[/b:e1cbc38460]November 23, 2005 3:59:46
PM MST
[b:e1cbc38460]To: [/b:e1cbc38460]Frank
Valdes <valdes@noao...

2974

By: valdes

11/23/2005 11:06PM

problem with ccdprocStarted by:valdes, 11/23/2005 11:11PM
Hi Ginny,

I gather that you have created the
Zero.fits bias image outside of
ccdproc. That is fine though, as you
found, it can be tricky to tell
ccdproc that you did that. The keyword
you want to add is ZEROCOR.
The value can be anything. I ...

2827

By: valdes

11/23/2005 11:11PM

mkscript problemStarted by:Guest, 11/28/2005 01:52PM
Hi Rob,

Sorry it's taken a while to get back to
you. Yes, the "blah" method
seems to be providing a workaround. I
hadn't thought that this was an
overly complicated set of commands, but
live and learn I suppose. Thanks
for your help.

Cheers,
Meliss...

2730

By: Guest

11/28/2005 01:52PM

Fwd: a problem about the photStarted by:valdes, 11/28/2005 03:32PM
[b:887700b596]From:
[/b:887700b596]"93249003-Hu Ruei-Hua"
<d939003@mail.astro.ncu.edu.tw
([email]d939003@mail.astro.ncu.edu.tw[/email])>
[b:887700b596]Date:
[/b:887700b596]November 23, 2005 9:09:18
PM MST
[b:887700b596]To: [/b:887700b596]Frank
Val...

2923

By: valdes

11/28/2005 03:32PM

polimplotStarted by:Guest, 11/28/2005 03:35PM
I am having trouble getting polimplot to
plot a vector graph on the stdgraph.
Attached are two files StokesP, which is
the magnitude of the polarization and
StokesA which is the angle. Would you
please show be how to plot the data.

Thanks,
Doug

3065

By: Guest

11/28/2005 03:35PM

bug shiftfind v1.12.1.Started by:Guest, 11/29/2005 02:22PM
Hi,

I am using iraf v2.12.1. (on sunstation)
and I found a bug (possibly
corrected in more recent version ?) in
the shiftfind task.
Indeed, the shift deduced by shiftfind
use a convention in "x" and the
reverse convention in "y". In other
words, the ...

3148

By: Guest

11/29/2005 02:22PM

pre-whitening?Started by:Guest, 11/29/2005 05:32PM
Hi Evgenya,
I'm copying the STScI helpdesk
(help@stsci.edu) in case they have
any other suggestions. You can use the
standard tasks like EPIX to simply
zero pixels in the FFT image but
otherwise I'm not aware of a way to take
out a specific frequency ...

2826

By: Guest

11/29/2005 05:32PM

imshift on different platformsStarted by:Guest, 11/29/2005 09:41PM
Greetings,

I have noticed some irregularities in
running the iraf task "imshift"
after upgrading my desktop, running rh9,
from PC-IRAF V2.12.1-EXPORT to
V2.12.2a-EXPORT. Using the same input
parameters within "imshift" on
the same input file, the o...

3192

By: Guest

11/29/2005 09:41PM

help with asttimesStarted by:Guest, 11/30/2005 12:48PM
Dear sirs,

I would like to use the task
[i:f6b2ef2d38]asttimes[/i:f6b2ef2d38] to
calculate the sidereal time of .fits
files. I need it to be written to the
headers as I need it afterwards to
calculate the airmass with
[i:f6b2ef2d38]setarimass[/i:f6b2...

2715

By: Guest

11/30/2005 12:48PM

CNSHD548725 Fwd from User: Bug in po...Started by:Guest, 12/01/2005 02:01PM
Dear Doug,
I was forwarded your request via
IRAF help and STScI help. I wrote the
imaging polarimetry tasks in the
stecf.impol package.

I looked at your images. They had some
floating overflow values in them
(- and + 3.38E38) which I am sure ...

2882

By: Guest

12/01/2005 02:01PM

help with asttimesStarted by:valdes, 12/05/2005 10:05PM
Hola Cristina,
The task you want is ASTHEDIT in the
ASTUTIL package. The command that I
think works for your data is:

as> asthedit ngc7094-001B lst.dat
as> hselect ngc7094-001B lst yes
18:52:47.74

where

as> type lst.dat
lst = mst (@"date-...

3952

By: pnord

12/05/2005 10:05PM

No TitleStarted by:valdes, 12/05/2005 10:08PM
From: Wei Zheng
<zheng@adcam.pha.jhu.edu
([email]zheng@adcam.pha.jhu.edu[/email])>
Date: Oct 18, 2005 7:31 AM
Subject: ccdproc
To: iraf@noao.edu
([email]iraf@noao.edu[/email])

Hello,

I am reprocessing a Gemini-NIRI image
taken in 2003, using...

2832

By: valdes

12/05/2005 10:08PM

mccmatch and mkapfileStarted by:valdes, 12/05/2005 10:10PM
From: Roberta Johnson
<rjohnson@ipac.caltech.edu
([email]rjohnson@ipac.caltech.edu[/email])>
Date: Oct 14, 2005 1:56 PM
Subject: mccmatch and mkapfile
To: iraf@noao.edu
([email]iraf@noao.edu[/email])

Hello,
I'm a grad student using IRAF and I ...

2836

By: valdes

12/05/2005 10:10PM

mosaic2Started by:valdes, 12/05/2005 10:12PM
[b:05ca362dcf]From:
[/b:05ca362dcf]"Liliana Hernandez
Martinez" <lhernand@astroscu.unam.mx
([email]lhernand@astroscu.unam.mx[/email])>
[b:05ca362dcf]Date:
[/b:05ca362dcf]November 8, 2005 7:58:18
AM MST
[b:05ca362dcf]To: [/b:05ca362dcf]Frank
Valdes...

2755

By: valdes

12/05/2005 10:12PM

Problems in IrafStarted by:valdes, 12/05/2005 10:13PM
[b:ecfacb4436]From:
[/b:ecfacb4436]Nazhatulshima Ahmad
<a_naz8898@yahoo.com.sg
([email]a_naz8898@yahoo.com.sg[/email])>
[b:ecfacb4436]Date:
[/b:ecfacb4436]November 8, 2005 7:17:28
PM MST
[b:ecfacb4436]To: [/b:ecfacb4436]iraf
<iraf@noao.edu ([em...

2704

By: valdes

12/05/2005 10:13PM

AlgorithmsStarted by:valdes, 12/05/2005 10:22PM
Dear Janaka,
IRAF is distributed with all source
code. The difficulties you might have
is understanding the code which is
written in a pre-processor language.
This language is a combination of C and
Fortran. Feel free to look and use any
parts of ...

2810

By: valdes

12/05/2005 10:22PM

MOSAIC reductionsStarted by:valdes, 12/05/2005 10:30PM
[b:744daa9d5a]From:
[/b:744daa9d5a]Spencer Stanford
<sastanford@mac.com
([email]sastanford@mac.com[/email])>
[b:744daa9d5a]Date:
[/b:744daa9d5a]November 27, 2005 4:05:34
AM MST
[b:744daa9d5a]To:
[/b:744daa9d5a]valdes@noao.edu
([email]valdes@noao.e...

2737

By: valdes

12/05/2005 10:30PM

zscaleStarted by:valdes, 12/05/2005 10:38PM
[b:4fe25522d5]From:
[/b:4fe25522d5]Jeremy Brewer
<jeremy.d.brewer@gmail.com
([email]jeremy.d.brewer@gmail.com[/email])>
[b:4fe25522d5]Date:
[/b:4fe25522d5]December 2, 2005 1:48:52
PM MST
[b:4fe25522d5]To:
[/b:4fe25522d5]valdes@noao.edu
([email]val...

20433

By: valdes

12/05/2005 10:38PM

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