Swath Data File: wgom2.0086.0.em1000.mb51 MBIO Data Format ID: 51 Format name: MBF_EMOLDRAW Informal Description: Old Simrad vendor multibeam format Attributes: Simrad EM1000, EM12S, EM12D, and EM121 multibeam sonars, bathymetry, amplitude, and sidescan, 60 beams for EM1000, 81 beams for EM12S/D, 121 beams for EM121, variable pixels, ascii + binary, Simrad. Data Totals: Number of Records: 8416 Bathymetry Data (121 beams): Number of Beams: 1018336 Number of Good Beams: 504040 49.50% Number of Zero Beams: 514296 50.50% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 1018336 Number of Good Beams: 504040 49.50% Number of Zero Beams: 514296 50.50% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 8617984 Number of Good Pixels: 6609500 76.69% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 2008484 23.31% Navigation Totals: Total Time: 1.1388 hours Total Track Length: 15.7717 km Average Speed: 13.8490 km/hr ( 7.4859 knots) Start of Data: Time: 06 14 2002 08:54:53.200000 JD165 (2002-06-14T08:54:53.200000) Lon: -92.536265000 Lat: 28.361341667 Depth: 60.4400 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 84.3000 degrees Sonar Depth: -0.0400 m Sonar Altitude: 60.4800 m End of Data: Time: 06 14 2002 10:03:13.010000 JD165 (2002-06-14T10:03:13.010000) Lon: -92.377272255 Lat: 28.364008333 Depth: 61.7600 meters Speed: 13.9806 km/hr ( 7.5571 knots) Heading: 91.4000 degrees Sonar Depth: 0.0100 m Sonar Altitude: 61.7500 m Limits: Minimum Longitude: -92.536453822 Maximum Longitude: -92.377203965 Minimum Latitude: 28.357542326 Maximum Latitude: 28.366094347 Minimum Sonar Depth: -0.5200 Maximum Sonar Depth: 0.3700 Minimum Altitude: -0.1300 Maximum Altitude: 70.6200 Minimum Depth: 4.6800 Maximum Depth: 70.5400 Minimum Amplitude: -53.5000 Maximum Amplitude: 0.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -13.2500 Data Record Type Notices: DN: 8416 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 9793 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 9794 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: PN: 1 DATA PROBLEM (ID=4): Average speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 1 1 0 0 0 1 1 1 1 1 CM: 1 1 1 1 0 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 0 0 0 CM: 1 0 0 1 1 1 0 0 0 0 CM: 0 0 0 0 1 1 0 0 0 0 CM: 0 0 0 0 1 1 0 0 0 0