Swath Data File: wgom2.0156.0.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: 4368 Bathymetry Data (121 beams): Number of Beams: 528528 Number of Good Beams: 261090 49.40% Number of Zero Beams: 267438 50.60% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 528528 Number of Good Beams: 261090 49.40% Number of Zero Beams: 267438 50.60% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 4472832 Number of Good Pixels: 3465730 77.48% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 1007102 22.52% Navigation Totals: Total Time: 0.7421 hours Total Track Length: 11.2129 km Average Speed: 15.1104 km/hr ( 8.1678 knots) Start of Data: Time: 06 19 2002 01:44:15.630000 JD170 (2002-06-19T01:44:15.630000) Lon: -92.471401667 Lat: 27.983823333 Depth: 116.6000 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 78.1000 degrees Sonar Depth: -0.0300 m Sonar Altitude: 116.6300 m End of Data: Time: 06 19 2002 02:28:47.060000 JD170 (2002-06-19T02:28:47.060000) Lon: -92.357983235 Lat: 27.983888333 Depth: 128.6400 meters Speed: 14.3534 km/hr ( 7.7586 knots) Heading: 90.7000 degrees Sonar Depth: -0.1800 m Sonar Altitude: 128.8200 m Limits: Minimum Longitude: -92.471863207 Maximum Longitude: -92.357894770 Minimum Latitude: 27.981022334 Maximum Latitude: 27.995210293 Minimum Sonar Depth: -0.5100 Maximum Sonar Depth: 0.5400 Minimum Altitude: 0.1800 Maximum Altitude: 128.8200 Minimum Depth: 24.2200 Maximum Depth: 1200.8800 Minimum Amplitude: -51.0000 Maximum Amplitude: -3.5000 Minimum Sidescan: -64.0000 Maximum Sidescan: -7.5000 Data Record Type Notices: DN: 4368 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 6106 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 6107 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 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: 0 0 0 0 0 0 0 0 0 0 CM: 0 0 0 0 0 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 0 0 1