Swath Data File: wgom2.0203.0.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: 1470 Bathymetry Data (121 beams): Number of Beams: 177870 Number of Good Beams: 50710 28.51% Number of Zero Beams: 127160 71.49% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 177870 Number of Good Beams: 50710 28.51% Number of Zero Beams: 127160 71.49% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 1505280 Number of Good Pixels: 678596 45.08% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 826684 54.92% Navigation Totals: Total Time: 0.5334 hours Total Track Length: 9.4828 km Average Speed: 17.7776 km/hr ( 9.6095 knots) Start of Data: Time: 06 20 2002 22:40:59.870000 JD171 (2002-06-20T22:40:59.870000) Lon: -93.032495000 Lat: 27.877474414 Depth: 204.5000 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 267.8000 degrees Sonar Depth: 0.2700 m Sonar Altitude: 204.2300 m End of Data: Time: 06 20 2002 23:13:00.160000 JD171 (2002-06-20T23:13:00.160000) Lon: -93.128606000 Lat: 27.878141667 Depth: 184.0200 meters Speed: 17.7250 km/hr ( 9.5811 knots) Heading: 270.8000 degrees Sonar Depth: -0.0400 m Sonar Altitude: 184.0600 m Limits: Minimum Longitude: -93.128724128 Maximum Longitude: -93.032474780 Minimum Latitude: 27.873355206 Maximum Latitude: 27.881510719 Minimum Sonar Depth: -0.7100 Maximum Sonar Depth: 0.6600 Minimum Altitude: -0.4300 Maximum Altitude: 245.3400 Minimum Depth: 180.9400 Maximum Depth: 297.6800 Minimum Amplitude: -49.5000 Maximum Amplitude: -20.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -13.4100 Data Record Type Notices: DN: 1470 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 3968 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 3969 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 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 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: 0 0 0 0 0 0 0 1 1 1