Identifier dark Purpose subtract dark current from data Synopsis out_spd = dark( in_spd [,darktable=darktable] [, CAL21_1=cal21_1] [, CAL21_2=cal21_2] [, CAL21_4=cal21_4] [, CAL21_8=cal21_8] [, /noclearbuffer] [,/fortran] ) Arguments Name I/O Type: Description: -------------------------------------------------------- out_spd O struct Name of output SPD in IDL format. in_spd I struct Name of input SPD in IDL format darktable I string Name of dark current TA file cal21_x I string Selected calfile 21_x, where x=1,2,4,8 If this is not supplied calfile 21_x from the default calfile directory is used. /noclearbuffer I -- Do not clear the calfile buffer before setting any optional alternative calibration calfile /fortran I keyword use fortran version Returns an SPD struct. Description This procedure calculates dark currents and subtracts them from the data, like it is done in the pipeline. The resulting SPD is returned. If the /noclearbuffer option is not given, the calfile buffer will be cleared upon entering DARK thus ensuring that the default set of calibration files will be used even in those cases where no calxx parameter is used. Comment TA part not yet activated Example spd2 = dark(spd1) Category AA Filename dark.pro (module: ias_dark) Author K. Leech Version 2.1 History 1.0 25-05-94 -->KL First written 1.1 07-07-94 -->GB Changed into function; implemented. 1.2 11-07-94 -->GB Added optional keyword CAL21 1.3 23-09-94 -->DRB Flexible calfile access implemented 1.4 03-10-94 -->DRB Always clear the calbuffer unless told otherwise with /noclearbuffer 1.5 10-03-95 --> HB Unified Arguments 07-04-95 --> HB Unified header 1.6 13-09-95 --> FL Added seperate keywords for CAL21_X typo in call to setup_cal removed 1.7 21-11-96 --> BV Timedependent calfile access 2.0 03-12-97 --> EkW call IDL program 2.1 20-01-98 --> EkW activate TA (SPR_S0314) 2.2 21-01-98 --> EkW activate keywords spec by keyword S0319