A driver for HXT_IMG was written which will automatically figure out how to integrate the HXT signal for each of the channels to accumulate 200 counts. The routine is very sensitive to the location of the flare and will not converge if the location is not correct. The flare is specified by selecting a time range and this means that the data files have to be in the directories that are returned by the DATA_PATHS routine (it figures out which files to use from the input times).
It figures out the location of the flare by (1) reading the GOES event log for the flare and converting the heliocentric coordinates, (2) converting the location of the SXT partial-frame images into HXT coordinates, or (3) to pass the location of the flare in the call to AUTO_HXI. The default is to do all channels, to use the GOES event location, to not subtract background, and to use a variable integration time to achieve 200 counts.
Some sample calls are:
IDL> auto_hxi, sttim, entim
IDL> auto_hxi, sttim, entim, chan=0
IDL> auto_hxi, sttim, entim, chan=0, /sxt_pfi
IDL> auto_hxi, sttim, entim, acc_cnts=[100,200,300,200]
IDL> auto_hxi, sttim, entim, loc=[-2.1,-4.8]
IDL> auto_hxi, sttim, entim, outdir='/yd8/scratch/morrison'
where sttim is the start date/time in any of the three
standard formats (described in the Reference Guide), and entim is the end time. At this time, the
routine performs no background subtraction before image synthesis.