skycoor(1) [debian man page]
skycoor(1) General Commands Manual skycoor(1) Name skycoor - Convert coordinates Synopsis skycoor [-bdgjv] [-n ndec] ra1 dec1 sys1 ... ran decn sysn or skycoor [-vbjg] [-n ndec] @listfile Description skycoor converts coordinates between the J2000, B1950, and galactic coordinate systems, rounding to a specified number of decimal places and printing in degrees or hh:mm:ss.sss dd:mm:ss.sss. Input coordinates may also be in either format, and the system (J2000, B1950, or ga- lactic) may be in upper or lower case. No spaces are allowed within the individual coordinates Options -b B1950 (FK4) output -d RA and Dec output in degrees -e Ecliptic longitude and latitude output -g Galactic longitude and latitude output -i r|d| Input units (r=radians, d=degrees, else hh:mm:sss dd:mm:sss) -j J2000 (FK5) output -n <num> Number of decimal places in output RA seconds -o <num> Offset coordinates by this many arcseconds -p RA and Dec proper motion in milliarcseconds/year -q Output system, including equinox -r <RA> <Dec> <RA> <Dec> Angular separation between two RA, Dec pairs -s Output ra= dec= epoch= radecsys= for sethead -v Print more intermediate information -w Convert RA, Dec equatorial coordinates to x,y,z -x Convert x,y,z equatorial coordinates to RA, Dec -y <epoch> Epoch of coordinates in years Author Doug Mink, SAO (dmink@cfa.harvard.edu) 9 November 2001 WCSTools skycoor(1)
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wcstools(1) General Commands Manual wcstools(1) Name wcstools - Programs to access image world coordinate systems and catalogs Setting an Image World Coordinate System imwcs Automatically 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 environ- ment 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) 6 July 2001 WCSTools wcstools(1)