If you are interested in what modes the BCS was executing, or what the
count rate in a particular channel has observed at a particular time, this
can be determined by using LIST_BDA. By default the count rate for channel
3 (Ca XIX) is given in the listing. Sample calls are:
IDL> list_bda, roadmap, start, nrec
IDL> list_bda, roadmap, start, nrec, chan=4
where roadmap is the input.