Swath Data File: wgom2.0025.0.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: 1112 Bathymetry Data (121 beams): Number of Beams: 134552 Number of Good Beams: 66022 49.07% Number of Zero Beams: 68530 50.93% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 134552 Number of Good Beams: 66022 49.07% Number of Zero Beams: 68530 50.93% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 1138688 Number of Good Pixels: 866837 76.13% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 271851 23.87% Navigation Totals: Total Time: 0.1828 hours Total Track Length: 1.9376 km Average Speed: 10.5995 km/hr ( 5.7295 knots) Start of Data: Time: 06 11 2002 02:19:07.750000 JD162 (2002-06-11T02:19:07.750000) Lon: -91.645105000 Lat: 27.983771779 Depth: 149.2600 meters Speed: 45763995.3192 km/hr (24737294.7671 knots) Heading: 268.6000 degrees Sonar Depth: -0.2200 m Sonar Altitude: 150.0400 m End of Data: Time: 06 11 2002 02:30:05.820000 JD162 (2002-06-11T02:30:05.820000) Lon: -91.664600800 Lat: 27.984906767 Depth: 101.2200 meters Speed: 9.5991 km/hr ( 5.1887 knots) Heading: 269.3000 degrees Sonar Depth: 0.0500 m Sonar Altitude: 101.1700 m Limits: Minimum Longitude: -91.664658623 Maximum Longitude: -91.645096694 Minimum Latitude: 27.981092532 Maximum Latitude: 27.986982935 Minimum Sonar Depth: -0.5000 Maximum Sonar Depth: 0.5200 Minimum Altitude: 66.1600 Maximum Altitude: 150.0400 Minimum Depth: 65.0200 Maximum Depth: 184.8600 Minimum Amplitude: -53.5000 Maximum Amplitude: -8.5000 Minimum Sidescan: -64.0000 Maximum Sidescan: -4.0000 Data Record Type Notices: DN: 1112 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 1447 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 1448 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: PN: 1 DATA PROBLEM (ID=3): Instantaneous speed exceeds 25 km/hr PN: 1 DATA PROBLEM (ID=4): Average speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 1 0 0 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 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 0 0 0 1 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 CM: 0 0 0 0 0 0 0 0 0 1