WCS-tools: A modular collection of programs to manage Coordinate 
Conversion. The programs works on FITS images


The WCS-tools are available at I.R.A. on the alpha workstations


You can get information about programs with man command:

   i.e.  man addpix


                             WCSTools Programs
                             -----------------
addpix
  Add a constant value(s) to specified pixel(s)
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.
gethead
  Return values for keyword(s) specified after filename.
getpix
  Return value(s) of specified pixel(s)
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.
imgsc
  List Guide Star Catalog sources which should be found in the area of
  the sky covered by a specific image using its WCS.
imhead
  Print FITS or IRAF header
imrot
  Rotate and/or reflect FITS or IRAF image files
imsize
  Print center and size of image using WCS keywords in header
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. 
imuac
  List USNO A Catalog sources which should be found in the area of
  the sky covered by a specific image using its WCS.
imujc
  List USNO UJ Catalog sources which should be found in the area of
  the sky covered by a specific image using its WCS.
imtab
  List sources from a tab-table catalog which should be found in the area of
  the sky covered by a specific image using its WCS.
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. [after U of Iowa SETWCS]
setpix
  Set specified pixel(s) to specified value(s)
sgsc
  Search the HST Guide Star Catalog given a region on the sky.
sethead
  Set header parameters in FITS or IRAF images.
suac
  Search the USNO A Catalog given a region on the sky.
sujc
  Search the USNO UJ Catalog given a region on the sky.
scat
  Search the HST GSC, USNO UJC, or a local catalog given a region on the sky.
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.
xy2sky
  Print sky coordinates for given image pixel coordinates on the command line
  or in a list file.




Contact Person:

        M.Nanni    nanni@ira.inaf.it