$sat_ctt_file = "ar2016072705_goes15_20160727_0500.satctt"; $sat_ctt_bird = "goes13 goes15"; $sat_ctt_date = "goes13:20160727_0445 goes15:20160727_0500"; $sat_ctt_chan = "ch4"; $sat_ctt_data = "ar2016072705_goes13_20160727_0445.satctt ar2016072705_goes15_20160727_0500.satctt";