$sat_alb_file = "ar2021121918_goes13_20211219_1740.satalb"; $sat_alb_bird = "goes13"; $sat_alb_date = "goes13:20211219_1740"; $sat_alb_chan = "vis"; $sat_alb_data = "ar2021121918_goes13_20211219_1740.satalb";