Swath Data File: mbari_1998_242_msn.mb57 MBIO Data Format ID: 57 Format name: MBF_EM300MBA Informal Description: Simrad multibeam processing format Attributes: Old and new Simrad multibeams, EM12S, EM12D, EM121, EM120, EM300, EM100, EM1000, EM950, EM1002, EM3000, bathymetry, amplitude, and sidescan, up to 254 beams, variable pixels, ascii + binary, MBARI. Data Totals: Number of Records: 1311 Bathymetry Data (135 beams): Number of Beams: 176445 Number of Good Beams: 163221 92.51% Number of Zero Beams: 5916 3.35% Number of Flagged Beams: 7308 4.14% Amplitude Data (135 beams): Number of Beams: 176445 Number of Good Beams: 163221 92.51% Number of Zero Beams: 5916 3.35% Number of Flagged Beams: 7308 4.14% Sidescan Data (1024 pixels): Number of Pixels: 1342464 Number of Good Pixels: 1338368 99.69% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 4096 0.31% Navigation Totals: Total Time: 1.0442 hours Total Track Length: 13.6052 km Average Speed: 13.0297 km/hr ( 7.0431 knots) Start of Data: Time: 04 19 1998 18:42:24.565000 JD109 Lon: -120.7835 Lat: 34.3135 Depth: 724.9200 meters Speed: 6.9840 km/hr ( 3.7751 knots) Heading: 308.2000 degrees Sonar Depth: 6.6600 m Sonar Altitude: 718.2600 m End of Data: Time: 04 19 1998 19:45:03.570000 JD109 Lon: -120.9086 Lat: 34.3785 Depth: 995.0000 meters Speed: 12.9960 km/hr ( 7.0249 knots) Heading: 315.3800 degrees Sonar Depth: 5.0800 m Sonar Altitude: 989.9200 m Limits: Minimum Longitude: -120.9218 Maximum Longitude: -120.7748 Minimum Latitude: 34.3042 Maximum Latitude: 34.3893 Minimum Sonar Depth: -6553.6000 Maximum Sonar Depth: 10.3100 Minimum Altitude: 0.0000 Maximum Altitude: 1038.4400 Minimum Depth: 717.4800 Maximum Depth: 1013.1800 Minimum Amplitude: -61.5000 Maximum Amplitude: 0.0000 Minimum Sidescan: 0.0000 Maximum Sidescan: 70.0000 Data Record Type Notices: DN: 1311 MB_DATA_DATA (ID=1): survey data DN: 47 MB_DATA_COMMENT (ID=2): comment DN: 39 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 39 MB_DATA_START (ID=10): Simrad start datagram DN: 3762 MB_DATA_NAV (ID=12): Navigation record DN: 1313 MB_DATA_RUN_PARAMETER (ID=13): Simrad runtime parameter datagram DN: 3761 MB_DATA_ATTITUDE (ID=18): Attitude record Nonfatal Error Notices: EN: 47 MB_ERROR_COMMENT (ID=-5): Comment record EN: 8914 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record EN: 1 MB_ERROR_NOT_ENOUGH_DATA (ID=-21): Not enough data to perform spline interpolation Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 0 1 1 0 0 0 0 0 0 0 CM: 1 1 1 1 0 0 0 0 0 0 CM: 1 1 1 1 1 0 0 0 0 0 CM: 1 1 1 1 1 1 0 0 0 0 CM: 0 1 1 1 1 1 1 0 0 0 CM: 0 0 0 1 1 1 1 1 1 0 CM: 0 0 0 0 1 1 1 1 1 1 CM: 0 0 0 0 0 1 1 1 1 1 CM: 0 0 0 0 0 0 1 1 1 1 CM: 0 0 0 0 0 0 0 1 1 1