%    start time	      end time	      duration	      low freq	     high freq	
         5.981	          5.987	          0.005	      11545.587	      47462.080	
         12.544	         12.551	          0.007	       4594.008	      47379.323	
         24.520	         24.530	          0.010	       4925.035	      47379.323	
         25.247	         25.255	          0.008	       3683.682	      47544.837