hec_id,time_start,time_peak,time_end,nar,lat_hg,long_hg,long_carr,xray_class,optical_class
30170208,2021-11-01 00:57:00.0,2021-11-01 01:45:00.0,2021-11-01 02:10:00.0,,,,,M1.5,
30170209,2021-11-01 13:23:00.0,2021-11-01 13:31:00.0,2021-11-01 13:42:00.0,,,,,B5.1,
30170210,2021-11-01 17:28:00.0,2021-11-01 18:01:00.0,2021-11-01 18:44:00.0,,,,,C1.3,
30170211,2021-11-01 20:35:00.0,2021-11-01 20:44:00.0,2021-11-01 20:48:00.0,,,,,C2.1,
30170212,2021-11-01 21:05:00.0,2021-11-01 21:33:00.0,2021-11-01 21:51:00.0,,,,,C4.0,
30170213,2021-11-01 23:35:00.0,2021-11-01 23:40:00.0,2021-11-01 23:44:00.0,,,,,C4.5,