Swath Data File: mbari_1998_377_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: 4947 Bathymetry Data (111 beams): Number of Beams: 549117 Number of Good Beams: 541426 98.60% Number of Zero Beams: 5207 0.95% Number of Flagged Beams: 2484 0.45% Amplitude Data (111 beams): Number of Beams: 549117 Number of Good Beams: 541426 98.60% Number of Zero Beams: 5207 0.95% Number of Flagged Beams: 2484 0.45% Sidescan Data (1024 pixels): Number of Pixels: 5065728 Number of Good Pixels: 5065728 100.00% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 0 0.00% Navigation Totals: Total Time: 0.7663 hours Total Track Length: 14.7727 km Average Speed: 19.2785 km/hr (10.4208 knots) Start of Data: Time: 04 25 1998 04:01:30.183000 JD115 Lon: -120.2095 Lat: 34.4185 Depth: 149.0100 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 79.8400 degrees Sonar Depth: 5.7000 m Sonar Altitude: 143.3100 m End of Data: Time: 04 25 1998 04:47:28.793000 JD115 Lon: -120.0495 Lat: 34.4075 Depth: 82.8900 meters Speed: 18.0000 km/hr ( 9.7297 knots) Heading: 76.1000 degrees Sonar Depth: 5.8000 m Sonar Altitude: 77.0900 m Limits: Minimum Longitude: -120.2102 Maximum Longitude: -120.0489 Minimum Latitude: 34.4054 Maximum Latitude: 34.4209 Minimum Sonar Depth: 4.8300 Maximum Sonar Depth: 6.5100 Minimum Altitude: 77.0000 Maximum Altitude: 143.4700 Minimum Depth: 79.9500 Maximum Depth: 158.8900 Minimum Amplitude: -55.5000 Maximum Amplitude: -13.0000 Minimum Sidescan: 0.0000 Maximum Sidescan: 56.2500 Data Record Type Notices: DN: 4947 MB_DATA_DATA (ID=1): survey data DN: 47 MB_DATA_COMMENT (ID=2): comment DN: 18 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 18 MB_DATA_START (ID=10): Simrad start datagram DN: 2759 MB_DATA_NAV (ID=12): Navigation record DN: 4946 MB_DATA_RUN_PARAMETER (ID=13): Simrad runtime parameter datagram DN: 2759 MB_DATA_ATTITUDE (ID=18): Attitude record Nonfatal Error Notices: EN: 47 MB_ERROR_COMMENT (ID=-5): Comment record EN: 10500 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: 1 1 0 0 0 0 0 0 0 0 CM: 1 1 1 0 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 0 1 1 1 CM: 0 0 0 0 0 0 0 0 1 1