Swath Data File: wgom2.0353.0.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: 6871 Bathymetry Data (121 beams): Number of Beams: 831391 Number of Good Beams: 410434 49.37% Number of Zero Beams: 420957 50.63% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 831391 Number of Good Beams: 410434 49.37% Number of Zero Beams: 420957 50.63% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 7035904 Number of Good Pixels: 5321339 75.63% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 1714565 24.37% Navigation Totals: Total Time: 1.1790 hours Total Track Length: 18.6762 km Average Speed: 15.8406 km/hr ( 8.5625 knots) Start of Data: Time: 06 25 2002 09:17:30.150000 JD176 (2002-06-25T09:17:30.150000) Lon: -93.607531667 Lat: 27.998378333 Depth: 97.0200 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 87.7000 degrees Sonar Depth: -0.1500 m Sonar Altitude: 97.1700 m End of Data: Time: 06 25 2002 10:28:14.590000 JD176 (2002-06-25T10:28:14.590000) Lon: -93.418158533 Lat: 27.998153333 Depth: 103.1800 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 91.8000 degrees Sonar Depth: 0.1400 m Sonar Altitude: 103.0400 m Limits: Minimum Longitude: -93.607615741 Maximum Longitude: -93.418063955 Minimum Latitude: 27.995410613 Maximum Latitude: 28.010442372 Minimum Sonar Depth: -0.3900 Maximum Sonar Depth: 0.4000 Minimum Altitude: -0.0200 Maximum Altitude: 128.7200 Minimum Depth: 82.5200 Maximum Depth: 1285.7800 Minimum Amplitude: -47.0000 Maximum Amplitude: -5.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -9.5000 Data Record Type Notices: DN: 6871 MB_DATA_DATA (ID=1): survey data DN: 8618 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 8618 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: PN: 6 DATA PROBLEM (ID=4): Average speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 1 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 0 0 0 0 0 CM: 1 0 1 1 0 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