Swath Data File: wgom2.0184.0.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: 5965 Bathymetry Data (121 beams): Number of Beams: 721765 Number of Good Beams: 355866 49.30% Number of Zero Beams: 365899 50.70% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 721765 Number of Good Beams: 355866 49.30% Number of Zero Beams: 365899 50.70% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 6108160 Number of Good Pixels: 4661020 76.31% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 1447140 23.69% Navigation Totals: Total Time: 0.9380 hours Total Track Length: 16.5531 km Average Speed: 17.6476 km/hr ( 9.5392 knots) Start of Data: Time: 06 20 2002 03:42:16.770000 JD171 (2002-06-20T03:42:16.770000) Lon: -92.356125000 Lat: 28.068235000 Depth: 101.1800 meters Speed: 56636082.9753 km/hr (30614098.9056 knots) Heading: 265.3000 degrees Sonar Depth: -0.2300 m Sonar Altitude: 101.5100 m End of Data: Time: 06 20 2002 04:38:33.490000 JD171 (2002-06-20T04:38:33.490000) Lon: -92.520530000 Lat: 28.066988333 Depth: 93.4400 meters Speed: 17.8390 km/hr ( 9.6427 knots) Heading: 267.3000 degrees Sonar Depth: -0.1100 m Sonar Altitude: 93.5500 m Limits: Minimum Longitude: -92.520656994 Maximum Longitude: -92.355229850 Minimum Latitude: 28.058522443 Maximum Latitude: 28.070219076 Minimum Sonar Depth: -0.5100 Maximum Sonar Depth: 0.4900 Minimum Altitude: -0.1400 Maximum Altitude: 128.8900 Minimum Depth: 56.3200 Maximum Depth: 161.8200 Minimum Amplitude: -54.5000 Maximum Amplitude: -8.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -9.0000 Data Record Type Notices: DN: 5967 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 7968 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 2 MB_ERROR_OUT_BOUNDS (ID=-2): Data outside specified location bounds EN: 7969 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: 2 DATA PROBLEM (ID=4): Average speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 0 0 0 0 0 1 1 1 1 1 CM: 1 0 0 0 0 1 1 1 1 1 CM: 1 1 0 0 0 1 1 1 1 1 CM: 1 1 1 0 0 1 1 1 1 1 CM: 1 1 1 0 1 1 1 0 0 0 CM: 1 1 1 1 1 1 0 0 0 0 CM: 0 1 1 1 1 1 0 0 0 0 CM: 0 0 1 1 1 1 0 0 0 0 CM: 0 0 1 1 1 0 0 0 0 0 CM: 0 0 0 1 1 0 0 0 0 0