Swath Data File: wgom2.0130.0.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: 10441 Bathymetry Data (121 beams): Number of Beams: 1263361 Number of Good Beams: 622192 49.25% Number of Zero Beams: 641169 50.75% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 1263361 Number of Good Beams: 622192 49.25% Number of Zero Beams: 641169 50.75% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 10691584 Number of Good Pixels: 8320604 77.82% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 2370980 22.18% Navigation Totals: Total Time: 1.8817 hours Total Track Length: 26.5508 km Average Speed: 14.1103 km/hr ( 7.6272 knots) Start of Data: Time: 06 18 2002 11:18:05.090000 JD169 (2002-06-18T11:18:05.090000) Lon: -92.355695000 Lat: 27.991111186 Depth: 138.9800 meters Speed: 43746738.6376 km/hr (23646885.7500 knots) Heading: 281.8000 degrees Sonar Depth: 0.1100 m Sonar Altitude: 139.1900 m End of Data: Time: 06 18 2002 13:10:59.050000 JD169 (2002-06-18T13:10:59.050000) Lon: -92.624810467 Lat: 27.990370000 Depth: 127.7000 meters Speed: 14.1931 km/hr ( 7.6719 knots) Heading: 268.2000 degrees Sonar Depth: -0.0200 m Sonar Altitude: 127.7200 m Limits: Minimum Longitude: -92.624925282 Maximum Longitude: -92.355140253 Minimum Latitude: 27.975550162 Maximum Latitude: 27.994026328 Minimum Sonar Depth: -0.3200 Maximum Sonar Depth: 0.2900 Minimum Altitude: 86.0000 Maximum Altitude: 156.1500 Minimum Depth: 9.0800 Maximum Depth: 1222.8800 Minimum Amplitude: -52.0000 Maximum Amplitude: 0.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -2.7500 Data Record Type Notices: DN: 10441 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 15512 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 15513 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record EN: 1 MB_ERROR_NOT_ENOUGH_DATA (ID=-21): Not enough data to perform spline interpolation Problem Notices: PN: 1 DATA PROBLEM (ID=3): Instantaneous speed exceeds 25 km/hr PN: 1 DATA PROBLEM (ID=4): Average speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 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: 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 1 0 0 0 0 0 0 0 0 CM: 0 1 0 0 0 0 0 0 0 0