E0831 14:59:57.518469 18178 rosbag_validate_main.cc:326] frame_id "imu" is send on multiple topics. It was seen at least on /imu/data_raw and /imu/data
E0831 14:59:57.519034 18178 rosbag_validate_main.cc:326] frame_id "imu" is send on multiple topics. It was seen at least on /imu/data_raw and /imu/data_flipped
E0831 14:59:57.519081 18178 rosbag_validate_main.cc:326] frame_id "imu" is send on multiple topics. It was seen at least on /imu/data_raw and /imu/data
I0831 14:59:57.790081 18178 rosbag_validate_main.cc:398] Time delta histogram for consecutive messages on topic "/imu/data_raw" (frame_id: "imu"):
Count: 4089  Min: 0.000000  Max: 0.044000  Mean: 0.013336
[0.000000, 0.004400)	       #############	Count: 2726 (66.666664%)	Total: 2726 (66.666664%)
[0.004400, 0.008800)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.008800, 0.013200)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.013200, 0.017600)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.017600, 0.022000)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.022000, 0.026400)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.026400, 0.030800)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.030800, 0.035200)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.035200, 0.039600)	                    	Count: 0 (0.000000%)	Total: 2726 (66.666664%)
[0.039600, 0.044000]	             #######	Count: 1363 (33.333332%)	Total: 4089 (100.000000%)
E0831 14:59:57.790132 18178 rosbag_validate_main.cc:382] Point data (frame_id: "velodyne") has a large gap, largest is 0.344402 s, recommended is [0.0005, 0.05] s with no jitter.
I0831 14:59:57.790220 18178 rosbag_validate_main.cc:398] Time delta histogram for consecutive messages on topic "/velodyne_points" (frame_id: "velodyne"):
Count: 175  Min: 0.296677  Max: 0.344402  Mean: 0.309060
[0.296677, 0.301450)	        ############	Count: 108 (61.714287%)	Total: 108 (61.714287%)
[0.301450, 0.306222)	                    	Count: 0 (0.000000%)	Total: 108 (61.714287%)
[0.306222, 0.310994)	                    	Count: 0 (0.000000%)	Total: 108 (61.714287%)
[0.310994, 0.315767)	                    	Count: 0 (0.000000%)	Total: 108 (61.714287%)
[0.315767, 0.320539)	                   #	Count: 9 (5.142857%)	Total: 117 (66.857140%)
[0.320539, 0.325312)	                ####	Count: 36 (20.571428%)	Total: 153 (87.428574%)
[0.325312, 0.330085)	                    	Count: 0 (0.000000%)	Total: 153 (87.428574%)
[0.330085, 0.334857)	                    	Count: 0 (0.000000%)	Total: 153 (87.428574%)
[0.334857, 0.339630)	                    	Count: 0 (0.000000%)	Total: 153 (87.428574%)
[0.339630, 0.344402]	                 ###	Count: 22 (12.571428%)	Total: 175 (100.000000%)