Swath Data File: wgom2.0364.0.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: 6905 Bathymetry Data (121 beams): Number of Beams: 835505 Number of Good Beams: 411442 49.24% Number of Zero Beams: 424063 50.76% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 835505 Number of Good Beams: 411442 49.24% Number of Zero Beams: 424063 50.76% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 7070720 Number of Good Pixels: 5529264 78.20% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 1541456 21.80% Navigation Totals: Total Time: 1.0845 hours Total Track Length: 19.2110 km Average Speed: 17.7146 km/hr ( 9.5754 knots) Start of Data: Time: 06 25 2002 21:52:03.700000 JD176 (2002-06-25T21:52:03.700000) Lon: -93.416503333 Lat: 28.020148333 Depth: 97.0600 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 271.0000 degrees Sonar Depth: 0.0300 m Sonar Altitude: 97.0300 m End of Data: Time: 06 25 2002 22:57:07.800000 JD176 (2002-06-25T22:57:07.800000) Lon: -93.610223133 Lat: 28.018684333 Depth: 92.1000 meters Speed: 14.8624 km/hr ( 8.0338 knots) Heading: 331.7000 degrees Sonar Depth: -0.0400 m Sonar Altitude: 92.1400 m Limits: Minimum Longitude: -93.611941956 Maximum Longitude: -93.416469687 Minimum Latitude: 28.004096258 Maximum Latitude: 28.022011080 Minimum Sonar Depth: -0.2600 Maximum Sonar Depth: 0.2300 Minimum Altitude: -0.1000 Maximum Altitude: 117.4600 Minimum Depth: 7.8600 Maximum Depth: 860.1400 Minimum Amplitude: -55.0000 Maximum Amplitude: 0.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: 6.0000 Data Record Type Notices: DN: 6905 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 8411 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 8412 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 0 0 0 0 0 0 0 1 1 1 CM: 1 1 0 1 1 0 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 0 0 CM: 0 1 1 1 1 1 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 1 0 1