This is the command wcsgrid that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
wcsgrid - Extract FITS WCS keywords and plot graticule
SYNOPSIS
wcsgrid [-a<alt>] [-d<pgdev>] [-h<hdu>] [<fitsfile>]
DESCRIPTION
wcsgrid extracts the WCS keywords for an image from the specified FITS file and uses
pgsbox() to plot a 2-D coordinate graticule for each alternate representation found.
The FITS file may be specified according to the syntax understood by cfitsio, for example
"file.fits.gz+1" refers to the first extension of a gzip'd FITS file. Use "-" or omit the
file name for input from stdin.
OPTIONS
-a<alt>
Plot a graticule only for the alternate representation specified (ignored if there
is only one).
-d<pgdev>
PGPLOT device type (default XWINDOW, use "?" for list).
-h<hdu>
Move to HDU number (1-relative) which is expected to contain an image array.
(Useful for input from stdin.)
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