wcstools

display and manipulate the world coordinate system of a FITS or IRAF images

Version : 2.9.3
Author(s) : Doug Mink (dmink@cfa.harvard.edu)
License : GPL
Website : http://tdc-www.harvard.edu/software/wcstools/

Disk space required for installation is 21.50 Mb

After the package is installed it can be accessed using the command


		/opt/lfa/startwcstools

A shortcut will be installed in the KDE/GNOME desktop menu system,
as an entry in the Astronomy submenu

Summary

WCSTools is a set of software utilities, written in C, which create,
display and manipulate the world coordinate system of a FITS or IRAF
image, using specific keywords in the image header which relate pixel
position within the image to position on the sky. Auxillary programs
search star catalogs and manipulate images.

The 1998 ADASS paper is the best published description of the other tools
in the WCSTools package, including SAOimage when used for WCS work:
"WCSTools: An Image Astrometry Toolkit",
Douglas J. Mink (1998), in Astronomical Data Analysis Software and
Systems VIII, A.S.P. Conference Series, Vol. 172, 1999, Dave Mehringer,
Ray Plante, Doug Roberts, eds., pp. 498-501.

Program Descriptions

addpix Add a constant value(s) to specified pixel(s)

conpix Operate on all of the pixels of an image

cphead Copy keyword values between FITS or IRAF images

delhead Delete specified keywords from FITS or IRAF image file headers

delwcs Delete the WCS keywords from an image. If both EPOCH and EQUINOX
are present, EQUINOX is also deleted.

edhead Edit the header of a FITS file or the user parameters of an IRAF
image file using a the text editor specified by the EDITOR environment
variable.

getcol Extract specified fields from an space-separated ASCII table file

getdate Convert dates and times between various formats

gethead Return values for keyword(s) specified after filename.

getpix Return value(s) of specified pixel(s)

gettab Extract values from tab table data base files

i2f Read two-dimensional IRAF image file and write FITS image file

imcat List catalog sources which should be found in the area of the sky
covered by a specific image. Special catalogs supported include
the HST Guide Star Catalog, the USNO-A2.0 Catalog, the Tycho-2 Catalog,
the SAO Catalog, and the PPM Catalog.

imextract Extract 1- or 2-dimensional images from 2- or 3-dimensional images

imhead Print FITS or IRAF header

immatch Match catalog and image stars using the WCS in the image file.

imrot Rotate and/or reflect FITS or IRAF image files

imsize Print center and size of image using WCS keywords in header
imcat List catalog sources which should be found in the area of the sky
covered by a specific image. Special catalogs supported include
the HST Guide Star Catalog, the USNO-A2.0 Catalog, the Tycho-2 Catalog,
the SAO Catalog, and the PPM Catalog.

imextract Extract 1- or 2-dimensional images from 2- or 3-dimensional images

imhead Print FITS or IRAF header

immatch Match catalog and image stars using the WCS in the image file.

imrot Rotate and/or reflect FITS or IRAF image files

imsize Print center and size of image using WCS keywords in header

imstack Stack 1-dimensional images into a 2-dimensional image

imstar Find and list the n brightest stars in an IRAF or FITS image, with
their sky coordinates if there is WCS information in the image header.

imwcs Automaticaly find stars in a FITS or IRAF image, match them to HST
Guide or UJC Stars, compute the relation between sky coordinates and
image coordinates, and write in in the image header.

keyhead Change keyword names in headers of FITS or IRAF images.

newhead Create dataless FITS image header files with BITPIX=0

remap Remap an image from one WCS into another, rebinning as necessary

sethead Set header keyword values in FITS or IRAF images.

setpix Set specified pixel(s) to specified value(s)

scat Search a source catalog given a region on the sky. Special catalogs
supported include the HST Guide Star Catalog, the USNO A and ACT
Catalogs, the SAO Catalog, and the PPM Catalog.

sky2xy Print image pixel coordinates for given sky coordinates on the
command line or in a list file.

skycoor Convert between J2000, B1950, and Galactic coordinates from the
command line or a file.

sumpix Total pixel values over an image row or column or a specified area

wcshead Print basic world coordinate system information on one line per image

xy2sky Print sky coordinates for given image pixel coordinates on the command
line or in a list file.

Screenshots

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