Swath Data File: wgom2.0132.0.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: 10646 Bathymetry Data (121 beams): Number of Beams: 1288166 Number of Good Beams: 634712 49.27% Number of Zero Beams: 653454 50.73% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 1288166 Number of Good Beams: 634712 49.27% Number of Zero Beams: 653454 50.73% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 10901504 Number of Good Pixels: 8511216 78.07% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 2390288 21.93% Navigation Totals: Total Time: 1.9262 hours Total Track Length: 26.3853 km Average Speed: 13.6984 km/hr ( 7.4045 knots) Start of Data: Time: 06 18 2002 15:05:19.130000 JD169 (2002-06-18T15:05:19.130000) Lon: -92.356070000 Lat: 27.996576667 Depth: 135.0800 meters Speed: 48674918.2544 km/hr (26310766.6240 knots) Heading: 281.0000 degrees Sonar Depth: -0.0300 m Sonar Altitude: 134.9300 m End of Data: Time: 06 18 2002 17:00:53.310000 JD169 (2002-06-18T17:00:53.310000) Lon: -92.623814608 Lat: 27.997650523 Depth: 123.1200 meters Speed: 13.2066 km/hr ( 7.1387 knots) Heading: 268.8000 degrees Sonar Depth: 0.1100 m Sonar Altitude: 123.0100 m Limits: Minimum Longitude: -92.623901706 Maximum Longitude: -92.355649254 Minimum Latitude: 27.993778962 Maximum Latitude: 28.001048948 Minimum Sonar Depth: -0.5000 Maximum Sonar Depth: 0.5000 Minimum Altitude: -0.1600 Maximum Altitude: 150.0000 Minimum Depth: 5.8000 Maximum Depth: 200.9800 Minimum Amplitude: -48.5000 Maximum Amplitude: 0.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: 8.0000 Data Record Type Notices: DN: 10647 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 15820 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 1 MB_ERROR_OUT_BOUNDS (ID=-2): Data outside specified location bounds EN: 15821 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: 10 DATA PROBLEM (ID=4): Average speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 0 0 0 0 0 0 1 1 1 0 CM: 1 1 1 1 1 0 1 1 1 0 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 1 1 1 1 1 1 1 CM: 1 1 1 0 1 1 1 1 1 1 CM: 0 0 0 0 0 0 0 0 1 1