$sat_ctt_file = "ar2016110907_goes15_20161109_0700.satctt"; $sat_ctt_bird = "goes13 goes15"; $sat_ctt_date = "goes13:20161109_0645 goes15:20161109_0700"; $sat_ctt_chan = "ch4"; $sat_ctt_data = "ar2016110907_goes13_20161109_0645.satctt ar2016110907_goes15_20161109_0700.satctt";