first,s,a,"first",,,"Name of attitude file containing first rotation" second,s,a,"second",,,"Name of attitude file containing second rotation" combined,s,a,"!z",,,"Name of attitude file to contain the combined rotation" alignfile,s,h,NONE,,,"Alignment file or NONE or CALDB" interpolation,s,h,LINEAR,LINEAR|CONSTANT,,"Interpolation method" chatter,i,h,5,0,5,"Chatter level [0-5]" history,b,h,yes,,,"Write HISTORY keywords to output?" mode,s,h,"ql",,,