Swath Data File: wgom2.0217.0.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: 1473 Bathymetry Data (121 beams): Number of Beams: 178233 Number of Good Beams: 54963 30.84% Number of Zero Beams: 123270 69.16% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 178233 Number of Good Beams: 54963 30.84% Number of Zero Beams: 123270 69.16% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 1508352 Number of Good Pixels: 716801 47.52% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 791551 52.48% Navigation Totals: Total Time: 0.5345 hours Total Track Length: 9.9238 km Average Speed: 18.5651 km/hr (10.0352 knots) Start of Data: Time: 06 21 2002 07:17:32.360000 JD172 (2002-06-21T07:17:32.360000) Lon: -93.030778333 Lat: 27.834317986 Depth: 194.0000 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 276.2000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 194.0000 m End of Data: Time: 06 21 2002 07:49:36.700000 JD172 (2002-06-21T07:49:36.700000) Lon: -93.131375600 Lat: 27.834450000 Depth: 207.8000 meters Speed: 18.8575 km/hr (10.1933 knots) Heading: 270.4000 degrees Sonar Depth: 0.2400 m Sonar Altitude: 207.5600 m Limits: Minimum Longitude: -93.131518527 Maximum Longitude: -93.030529966 Minimum Latitude: 27.831319254 Maximum Latitude: 27.838538400 Minimum Sonar Depth: -0.8400 Maximum Sonar Depth: 0.8000 Minimum Altitude: 0.0400 Maximum Altitude: 218.2000 Minimum Depth: 71.9800 Maximum Depth: 262.9800 Minimum Amplitude: -53.0000 Maximum Amplitude: -5.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -5.0000 Data Record Type Notices: DN: 1473 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 3960 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 3961 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 0 1 1 1 1 0 0 0 0 1 CM: 1 1 1 1 1 1 0 0 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 0 1 1 1 CM: 1 1 1 1 1 0 0 0 1 1 CM: 1 1 1 0 0 0 0 0 1 1