image,f,l,,,,Direct Image grism,f,l,,,,Grism image output,f,l,,,,Output File outfits,b,h,no,,,Output also in FITS format skysub,b,h,yes,,,Substract Sky mingood,r,h,INDEF,,,Minimum value to consider good maxgood,r,h,INDEF,,,Maximum value to consider good auto,b,h,no,,,Automatic Mode gdatin,i,h,1,,,Extension number of the data gdtqin,i,h,INDEF,,,Extension number of the DTQ dtqstr,s,h,"0000000000000000",,,Bits of DTQ used to accept a pixel width,i,h,7,3,,Width of default extraction box swidth1,i,h,8,,,Inner radius for background swidth2,i,h,10,,,Outer radius for background autofilter,b,h,yes,,,Use filter definition file step_lambda,r,h,INDEF,,,Wavelength step per pixel zero_lambda,r,h,INDEF,,,Wavelength zero point ccx,r,h,INDEF,,,X OVERWRITE of offset between grism and direct images ccy,r,h,INDEF,,,Y OVERWRITE of offset between grism and direct images angle,r,h,INDEF,-5,5,Angle of dispersion wrt x axis maxx1,i,h,INDEF,5,,Left extent of spectra in pixels maxx2,i,h,INDEF,5,,Right extent of spectra in pixels