2001AUG08 release of the MXTOOLS package for IRAF
Ken Mighell wrote on Aug 08, 2001
FROM: mighell@noao.edu (Ken Mighell)
TO: adass-iraf-applications@iraf.noao.edu
DATE: 2001 August 8
This announcement describes the 2001AUG08 release of the MXTOOLS package
for IRAF.
The following files have been placed on the IRAF anonymous FTP contribution
web site:
ftp://iraf.noao.edu/contrib/mxtools.README # installation instructions
ftp://iraf.noao.edu/contrib/mxtools.tar.Z # main tar file (without binaries)
ftp://iraf.noao.edu/contrib/mxtools-bin.sparc-tar.Z # SPARC binaries tar file
ftp://iraf.noao.edu/contrib/mxtools-bin.ssun-tar.Z # SunOS binaries tar file
ftp://iraf.noao.edu/contrib/mxtools-bin.redhat-tar.Z # Redhat binaries tar file
ftp://iraf.noao.edu/contrib/mxtools-bin.alpha-tar.Z # Alpha binaries tar file
ftp://iraf.noao.edu/contrib/mxtools-bin.hp700-tar.Z # HP700 binaries tar file
The installation instructions are given for (1) IRAF managers for system-wide
installation of the MXTOOLS as a standard IRAF package, and (2) individual
users who want a private installation of MXTOOLS for their personal use.
Any comments/suggestions and bug reports would be greatly appreciated.
/----- IMPORTANT NOTE ----------------------------------------------\
| |
| STSDAS must be installed on your IRAF system before attempting to |
| compile the MXTOOLS package. |
| |
\-------------------------------------------------------------------/
More information about MXTOOLS and its MX Application Programming Interface
software library is available at the official MXTOOLS web site of
http://www.noao.edu/staff/mighell/mxtools
===== 2001AUG08 RELEASE NOTES =================================================
The latest release of MXTOOLS features several new tasks including QDWFPC2,
which does QDPHOT CCD stellar photometry on two Hubble Space Telescope WFPC2
observations, WFPC2COLOR, which converts HST WFPC2 instrumental magnitudes
to standard colors using the Holtzman et al. (1995, PASP, 107, 1065) color
equations, and QDCMD, which reads the output of WFPC2COLOR and displays a
color-magnitude diagram on a user-chosen graphics device.
The QDWFPC2 demonstration can be seen by typing the command `qdwfpc2' and
accepting the two default WFPC2 images of the Galactic globular cluster
NGC 362. The QDWFPC2 task is actually an IRAF script which first does QDPHOT
photometry on the WFPC2 images, then converts the F439W and F555W instrumental
magnitudes into standard Johnson B and V magnitudes using the WFPC2COLOR task,
and finally displays the results as a color-magnitude diagram using QDCMD.
The entire process generally takes just a few seconds (typically <10 seconds
on a slow 200-MHz Sun Ultra1 workstation).
The QDWFPC2 task has been designed for ease of use for undergraduates working
with HST archival WFPC2 images of stellar population in the Local Group.
Anyone interested in using QDWFPC2 to analyze WFPC2 observations of Galactic
star clusters in a laboratory setting as part of a senior-level astrophysics
course on stellar evolution is encouraged to contact me for further discussion.
-------------------------------------------------------------------------------
Kenneth Mighell, Associate Scientist E-mail: ............. mighell@noao.edu
Kitt Peak National Observatory Phone: .................. 520-318-8391
National Optical Astronomy Observatory Fax: .................... 520-318-8360
P.O. Box 26732, Tucson, AZ 85726-6732 URL: http://www.noao.edu/staff/mighell
Petr Skoda wrote on Sep 12, 2001
I have noticed that there is a catch in computing and adding heliocentric correction VHELIO to a bunch of files using task RVCORR in astutils package. When the date-obs is in new format (including time) that time is taken for computing VHELIO and HJD even if there is a EXPTIME keyword even if the keywpars are set appropriately. It ignores the UTMIDDLE as well. What is still worse that the SETJD task sets the HJD correctly to the midtime of the exposure but after running RVCORR even that HJD is replaced by the value at the beginning of exposure. So how can I get the correct HJD and VHELIO to the middle of the exposure? The ASTHEDIT seems not to have function for computing heliocentric correction VHELIO either. Is there a trick or is it necessary to write a new task to do this ? ************************************************************************* * Petr Skoda Phone : +420-204-649201, ext. 361 * * Stellar Department +420-204-620361,620136 * * Astronomical Institute CAS Fax : +420-204-620250 * * 251 65 Ondrejov e-mail: skoda@sunstel.asu.cas.cz * * Czech Republic pskoda@mbox.cesnet.cz * *************************************************************************
Doug Mink wrote on Sep 12, 2001
Petr Skoda wrote: > > I have noticed that there is a catch in computing and adding heliocentric > correction VHELIO to a bunch of files using task RVCORR in astutils > package. > > When the date-obs is in new format (including time) that time is taken for > computing VHELIO and HJD even if there is a EXPTIME keyword even if the > keywpars are set appropriately. It ignores the UTMIDDLE as well. What is > still worse that the SETJD task sets the HJD correctly to the midtime of > the exposure but after running RVCORR even that HJD is replaced by the > value at the beginning of exposure. > > So how can I get the correct HJD and VHELIO to the middle of the exposure? > The ASTHEDIT seems not to have function for computing heliocentric > correction VHELIO either. An alternative is to use the RVSAO package's BCVCORR task, which computes both HJD and BCV (solar-system-barycentric velocity correction) and lets you specify which keywords to use to get the time. It is documented at http://tdc-www.harvard.edu/iraf/rvsao/bcvcorr/ -Doug Mink (RVSAO developer)
Last post on Sep 12, 2001