Swath Data File: wgom2.0321.0.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: 3587 Bathymetry Data (121 beams): Number of Beams: 434027 Number of Good Beams: 214206 49.35% Number of Zero Beams: 219821 50.65% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 434027 Number of Good Beams: 214206 49.35% Number of Zero Beams: 219821 50.65% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 3673088 Number of Good Pixels: 2885226 78.55% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 787862 21.45% Navigation Totals: Total Time: 0.5422 hours Total Track Length: 8.8532 km Average Speed: 16.3286 km/hr ( 8.8263 knots) Start of Data: Time: 06 24 2002 13:10:00.150000 JD175 (2002-06-24T13:10:00.150000) Lon: -93.354475000 Lat: 27.897866221 Depth: 104.7200 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 142.4000 degrees Sonar Depth: -0.0600 m Sonar Altitude: 104.7800 m End of Data: Time: 06 24 2002 13:42:32.040000 JD175 (2002-06-24T13:42:32.040000) Lon: -93.264811533 Lat: 27.897855367 Depth: 120.3800 meters Speed: 16.4540 km/hr ( 8.8940 knots) Heading: 89.0000 degrees Sonar Depth: -0.0800 m Sonar Altitude: 120.4600 m Limits: Minimum Longitude: -93.356352239 Maximum Longitude: -93.264708254 Minimum Latitude: 27.895461663 Maximum Latitude: 27.900101542 Minimum Sonar Depth: -0.3900 Maximum Sonar Depth: 0.3600 Minimum Altitude: 44.1800 Maximum Altitude: 120.4600 Minimum Depth: 43.9400 Maximum Depth: 129.7400 Minimum Amplitude: -59.5000 Maximum Amplitude: -4.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -2.5000 Data Record Type Notices: DN: 3587 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 4246 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 4247 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 0 0 0 0 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 0 1 0 0 0 1 1 CM: 1 0 0 0 0 0 0 0 0 1