$sat_alb_file = "ar2021041420_goes13_20210414_2040.satalb"; $sat_alb_bird = "goes13"; $sat_alb_date = "goes13:20210414_2040"; $sat_alb_chan = "vis"; $sat_alb_data = "ar2021041420_goes13_20210414_2040.satalb";