NAME
onefix - corrects World Coordinate Systems of a FITS file
SYNOPSIS
usage: onefix fits_file [change] [mode=sao] [nofind] [minsig=500] [mag=12] [fwhm=0.5] [over=1.5] [extra=150] [nostars] [debug]
DESCRIPTION
onefix takes the FITS image and corrects the
WCS information
by pattern matching to the brightest star
assuming a WCS framework already exists.
It does it in the following steps
- generates a file of the gaia stars near the target object
- generates a star list from these coordinate
- uses stars to find the stars in the image
- uses match to find the approximate offset
- uses astrom to find the plate solution
- updates the FITS header
If the file specifies and ObjectID.
HEADERS
The following header items are added to the image.
OPTIONS
fwhm= sets the minimum fwhm of the detected stars.
The default is 0.5 pixel.
change - updates the constants in the header.
nofind - doesn't look up new coordinates
nofind - doesn't find stars
mag= - changes minimum magnitude (default:15).
radius= - changes match search radius for determining
the first match (default:40).
debug - more printout
Program index