hec_id,time_start,time_peak,time_end,nar,lat_hg,long_hg,long_carr,xray_class,optical_class
74242,2013-02-19 07:41:00.0,2013-02-19 07:45:00.0,2013-02-19 07:47:00.0,11678,11.0,30.0,67.6,B8.7," SF"
74243,2013-02-19 10:09:00.0,2013-02-19 10:51:00.0,2013-02-19 11:26:00.0,11678,,,,C2.1,
74244,2013-02-19 20:03:00.0,2013-02-19 20:07:00.0,2013-02-19 20:09:00.0,11678,,,,B8.8,