Swath Data File: 0004_20010418_001332_raw.mb56 MBIO Data Format ID: 56 Format name: MBF_EM300RAW Informal Description: Simrad current multibeam vendor format Attributes: Simrad EM120, EM300, EM1002, EM3000, bathymetry, amplitude, and sidescan, up to 254 beams, variable pixels, ascii + binary, Simrad. Data Totals: Number of Records: 2874 Bathymetry Data (127 beams): Number of Beams: 364998 Number of Good Beams: 343848 94.21% Number of Zero Beams: 21150 5.79% Number of Flagged Beams: 0 0.00% Amplitude Data (127 beams): Number of Beams: 364998 Number of Good Beams: 343848 94.21% Number of Zero Beams: 21150 5.79% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 2942976 Number of Good Pixels: 1026593 34.88% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 1916383 65.12% Navigation Totals: Total Time: 0.0516 hours Total Track Length: 0.4148 km Average Speed: 8.0407 km/hr ( 4.3463 knots) Start of Data: Time: 04 18 2001 00:13:32.999000 JD108 Lon: -82.6119 Lat: 27.7488 Depth: 5.7400 meters Speed: 16.7400 km/hr ( 9.0486 knots) Heading: 174.9000 degrees Sonar Depth: 1.9700 m Sonar Altitude: 3.6700 m End of Data: Time: 04 18 2001 00:16:38.708000 JD108 Lon: -82.6110 Lat: 27.7410 Depth: 6.6800 meters Speed: 3.7800 km/hr ( 2.0432 knots) Heading: 178.2600 degrees Sonar Depth: 2.0600 m Sonar Altitude: 4.7300 m Limits: Minimum Longitude: -82.6119 Maximum Longitude: -82.6109 Minimum Latitude: 27.7410 Maximum Latitude: 27.7488 Minimum Sonar Depth: 1.9400 Maximum Sonar Depth: 2.1100 Minimum Altitude: 3.5900 Maximum Altitude: 5.6000 Minimum Depth: 5.1000 Maximum Depth: 7.9400 Minimum Amplitude: -45.0000 Maximum Amplitude: 5.0000 Minimum Sidescan: -64.0000 Maximum Sidescan: -5.5000 Data Record Type Notices: DN: 2874 MB_DATA_DATA (ID=1): survey data DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 1 MB_DATA_START (ID=10): Simrad start datagram DN: 1 MB_DATA_STOP (ID=11): Simrad stop datagram DN: 929 MB_DATA_NAV (ID=12): Navigation record DN: 2 MB_DATA_RUN_PARAMETER (ID=13): Simrad runtime parameter datagram DN: 929 MB_DATA_CLOCK (ID=14): Simrad clock datagram DN: 18 MB_DATA_HEADING (ID=17): Heading record DN: 186 MB_DATA_ATTITUDE (ID=18): Attitude record Nonfatal Error Notices: EN: 2067 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record EN: 12 MB_ERROR_NOT_ENOUGH_DATA (ID=-21): Not enough data to perform spline interpolation Problem Notices: PN: 165 DATA PROBLEM (ID=3): Instantaneous speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 1 1 1 1 0 0 0 0 0 0 CM: 0 1 1 1 1 0 0 0 0 0 CM: 0 0 1 1 1 1 0 0 0 0 CM: 0 0 1 1 1 1 1 0 0 0 CM: 0 0 0 1 1 1 1 0 0 0 CM: 0 0 0 0 1 1 1 1 0 0 CM: 0 0 0 0 0 1 1 1 1 0 CM: 0 0 0 0 0 0 1 1 1 0 CM: 0 0 0 0 0 0 1 1 1 1 CM: 0 0 0 0 0 0 0 1 1 1