input,s,a,,,,"Input list of GSC tables"
output,s,a,,,,"Output table with predicted X's & Y's"
image,s,h,"",,,"Optional image header for field information"
catpars,pset,h,"",,,"Catalog keyword description pset\n"

ra,r,h,INDEF,0.,24.,"RA  of the reference point (hours)"
dec,r,h,INDEF,-90.,90.,"Dec of the reference point (degrees)"
epoch,r,h,INDEF,,,"Reference coordinate epoch"
date_obs,s,h,"",,,"Date of the observation (DD/MM/YY)"
width,r,h,,0.,180.,"Field width (degrees)\n"

xref,r,h,INDEF,,,"X coordinate of the reference point"
yref,r,h,INDEF,,,"Y coordinate of the reference point\n"

opaxis,b,h,no,,,"Is the reference point on the optical axis?"
del_ra,r,h,0.,,,"RA offset of field center from the OA (degrees)"
del_dec,r,h,0.,,,"Dec offset of field center from the OA (degrees)\n"

north,s,h,"top",top|left|bottom|right,,"Direction of North in the field"
east,s,h,"left",top|left|bottom|right,,"Direction of East in the field"
pangle,r,h,0.,,,"Position angle of the field (CCW positive)\n"

scale,r,h,,0.,,"Plate or image scale (\"/user)"
edge,r,h,0.,0.,,"Edge buffer width (user units)\n"

#relative,b,h,no,,,"Report relative X,Y coordinates?"
#xorigin,r,h,500.,,,"X coordinate of the first table entry"
#yorigin,r,h,500.,,,"Y coordinate of the first table entry"