OBS-ID    hhc20020504_0913
EVNT0001  2002-05-04T02:48:21.386Z 2002-05-04T02:57:21.382Z    2.69
EVNT0002  2002-05-04T03:09:21.388Z 2002-05-04T03:15:51.382Z    2.25
EVNT0003  2002-05-04T03:38:51.387Z 2002-05-04T03:58:21.384Z    2.62