hec_id,time_start,pa,pa_width,v,v_init,v_final,v_20r,accel,pa_measure
21227,2012-03-04 05:00:06.0,47.0,160.0,584.0,250.0,939.0,788.0,23.3,52.0
21228,2012-03-04 11:00:07.0,-1.0,360.0,1306.0,1142.0,1473.0,1399.0,28.3,52.0
21229,2012-03-04 20:48:05.0,65.0,50.0,720.0,669.0,770.0,790.0,7.3,52.0