hec_id,time_start,time_peak,time_end,nar,lat_hg,long_hg,long_carr,xray_class,optical_class
1,1975-09-01 15:12:00.0,1975-09-01 15:12:00.0,1975-09-01 15:19:00.0,633,3.0,-54.0,255.13,C0.0,sn
2,1975-09-01 19:33:00.0,1975-09-01 19:35:00.0,1975-09-01 19:45:00.0,633,7.0,-47.0,259.74,C0.0,sf
3,1975-09-02 09:25:00.0,1975-09-02 09:25:00.0,1975-09-02 09:38:00.0,633,6.0,-39.0,260.11,C0.0,sn
4,1975-09-03 21:15:00.0,1975-09-03 21:15:00.0,1975-09-03 21:15:00.0,633,8.0,-22.0,257.39,C0.0,sf
5,1975-09-04 13:02:00.0,1975-09-04 13:19:00.0,1975-09-04 13:46:00.0,635,5.0,-10.0,260.7,C0.0,sf
6,1975-09-08 02:01:00.0,1975-09-08 02:05:00.0,1975-09-08 02:21:00.0,633,9.0,37.0,260.94,C0.0,sf
7,1975-09-09 01:45:00.0,,1975-09-09 01:50:00.0,644,-12.0,-40.0,170.88,C0.0,sf
8,1975-09-10 14:16:00.0,1975-09-10 14:21:00.0,1975-09-10 14:34:00.0,633,8.0,75.0,265.79,C0.0,sf
9,1975-09-11 20:17:00.0,1975-09-11 20:18:00.0,1975-09-11 20:19:00.0,644,-10.0,-5.0,169.27,C0.0,sf
10,1975-09-18 13:51:00.0,1975-09-18 13:53:00.0,1975-09-18 14:15:00.0,649,8.0,2.0,87.39,C0.0,sf