Swath Data File: wgom2.0322.0.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: 1539 Bathymetry Data (121 beams): Number of Beams: 186219 Number of Good Beams: 91503 49.14% Number of Zero Beams: 94716 50.86% Number of Flagged Beams: 0 0.00% Amplitude Data (121 beams): Number of Beams: 186219 Number of Good Beams: 91503 49.14% Number of Zero Beams: 94716 50.86% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 1575936 Number of Good Pixels: 1181788 74.99% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 394148 25.01% Navigation Totals: Total Time: 0.2166 hours Total Track Length: 3.6085 km Average Speed: 16.6581 km/hr ( 9.0044 knots) Start of Data: Time: 06 24 2002 13:50:34.840000 JD175 (2002-06-24T13:50:34.840000) Lon: -93.275271667 Lat: 27.898640000 Depth: 78.0200 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 265.4000 degrees Sonar Depth: 0.0900 m Sonar Altitude: 77.9300 m End of Data: Time: 06 24 2002 14:03:34.680000 JD175 (2002-06-24T14:03:34.680000) Lon: -93.311674833 Lat: 27.899345000 Depth: 68.1600 meters Speed: 14.9869 km/hr ( 8.1010 knots) Heading: 266.8000 degrees Sonar Depth: -0.0200 m Sonar Altitude: 68.1800 m Limits: Minimum Longitude: -93.311804524 Maximum Longitude: -93.275173059 Minimum Latitude: 27.897230774 Maximum Latitude: 27.900965518 Minimum Sonar Depth: -0.1600 Maximum Sonar Depth: 0.2100 Minimum Altitude: -0.0100 Maximum Altitude: 78.1300 Minimum Depth: 50.2000 Maximum Depth: 95.4000 Minimum Amplitude: -59.5000 Maximum Amplitude: -8.5000 Minimum Sidescan: -64.0000 Maximum Sidescan: -6.0000 Data Record Type Notices: DN: 1539 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 1701 MB_DATA_NAV (ID=12): Navigation record Nonfatal Error Notices: EN: 1702 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 1 1 1 0 0 0 0 0 0 0 CM: 1 1 1 1 0 0 0 0 0 1 CM: 1 1 1 1 1 1 0 0 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: 0 0 0 0 1 1 1 1 1 1 CM: 0 0 0 0 0 0 1 1 1 1