... HST . ... HST Overview . ... Some users may wish to create their own calibration reference files or tables for certain parts of the pipeline calibration. ... Wavelengths : IRAF/STADAS tasks hst_calib.fos.y_calib.linefind and .hst_calib.fos.y_calib.dispfity are required. linefind is used to find the positions in a WAVE spectrum of candidate comparison lines from a template list of lines. ... Unfortunately, all AIS reference files and tables were generated using IDL software written by the FOS team. ...