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wcstools

Langue: en

Version: 148580 (fedora - 04/07/09)

Section: 1 (Commandes utilisateur)

Name

wcstools - Programs to access image world coordinate systems and catalogs

Setting an Image World Coordinate System

imwcs
Automaticaly find stars in a FITS or IRAF image, match them to HST Guide USNO A or USNO UJ Stars, compute the relation between sky coordinates and image coordinates, and write in in the image header. [after U of Iowa SETWCS]
delwcs
Delete the WCS keywords from an image. If both EPOCH and EQUINOX are present, EQUINOX is also deleted.

Using an Image World Coordinate System

imcat
List catalog sources which should be found in the area of the sky covered by a specific image.
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.
sky2xy
Print image pixel coordinates for given sky coordinates on the command line or in a list file.
xy2sky
Print sky coordinates for given image pixel coordinates on the command line or in a list file.

Catalog Utility Programs

scat
Search the HST GSC, USNO-A2.0, or other catalog given a region on the sky.
skycoor
Convert between J2000, B1950, and Galactic coordinates from the command line or a file.

Image Utility Programs

addpix
Add a constant value(s) to specified pixel(s)
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
imhead
Print FITS or IRAF header
imrot
Rotate and/or reflect FITS or IRAF image files
setpix
Set specified pixel(s) to specified value(s)
sethead
Set header parameters in FITS or IRAF images.
subpix
Subtract a constant value(s) from specified pixel(s)

Author

Doug Mink, SAO (dmink@cfa.harvard.edu)
Aux jeunes gens pour l'ordinaire
L'adresse et le savoir-faire
Valent mieux que des biens acquis.
-+- Charles Perrault, Le Chat botté, Moralité -+-