Swath Data File: wgom2.0260.0.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: 419 Bathymetry Data (121 beams): Number of Beams: 50699 Number of Good Beams: 19271 38.01% Number of Zero Beams: 31428 61.99% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 50699 Number of Good Beams: 19271 38.01% Number of Zero Beams: 31428 61.99% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 429056 Number of Good Pixels: 249560 58.16% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 179496 41.84% Navigation Totals: Total Time: 0.1518 hours Total Track Length: 2.5890 km Average Speed: 17.0538 km/hr ( 9.2183 knots) Start of Data: Time: 06 21 2002 23:15:56.400000 JD172 (2002-06-21T23:15:56.400000) Lon: -93.081611667 Lat: 27.854076667 Depth: 129.9800 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 96.7000 degrees Sonar Depth: -0.4000 m Sonar Altitude: 130.3800 m End of Data: Time: 06 21 2002 23:25:02.940000 JD172 (2002-06-21T23:25:02.940000) Lon: -93.056065267 Lat: 27.852536533 Depth: 178.8000 meters Speed: 16.3031 km/hr ( 8.8125 knots) Heading: 109.6000 degrees Sonar Depth: 0.9100 m Sonar Altitude: 177.8900 m Limits: Minimum Longitude: -93.082043383 Maximum Longitude: -93.054450699 Minimum Latitude: 27.850430608 Maximum Latitude: 27.856360999 Minimum Sonar Depth: -0.9300 Maximum Sonar Depth: 0.9100 Minimum Altitude: 70.2000 Maximum Altitude: 178.7700 Minimum Depth: 63.6400 Maximum Depth: 234.1400 Minimum Amplitude: -53.0000 Maximum Amplitude: -9.5000 Minimum Sidescan: -64.0000 Maximum Sidescan: -8.0000 Data Record Type Notices: DN: 419 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 1127 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 1128 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 1 0 0 0 0 0 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 0 0 0 0 0 1 1 CM: 1 0 0 0 0 0 0 0 1 1 CM: 0 0 0 0 0 0 0 0 1 1 CM: 0 0 0 0 0 0 0 0 0 1