Swath Data File: sb20011140500.mb41 MBIO Data Format ID: 41 Format name: MBF_SB2100RW Informal Description: SeaBeam 2100 series vender format Attributes: SeaBeam 2100, bathymetry, amplitude and sidescan, 151 beams and 2000 pixels, ascii with binary sidescan, SeaBeam Instruments. Data Totals: Number of Records: 1072 Bathymetry Data (151 beams): Number of Beams: 161872 Number of Good Beams: 100291 61.96% Number of Zero Beams: 53713 33.18% Number of Flagged Beams: 7868 4.86% Amplitude Data (151 beams): Number of Beams: 161872 Number of Good Beams: 100291 61.96% Number of Zero Beams: 53713 33.18% Number of Flagged Beams: 7868 4.86% Sidescan Data (2000 pixels): Number of Pixels: 2144000 Number of Good Pixels: 1655229 77.20% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 488771 22.80% Navigation Totals: Total Time: 0.9989 hours Total Track Length: 7.6995 km Average Speed: 7.7082 km/hr ( 4.1666 knots) Start of Data: Time: 04 24 2001 05:00:02.693000 JD114 Lon: -125.3939 Lat: 47.8492 Depth: 963.7000 meters Speed: 42.1880 km/hr (22.8043 knots) Heading: 181.9210 degrees Sonar Depth: 0.0000 m Sonar Altitude: 966.4000 m End of Data: Time: 04 24 2001 05:59:58.626000 JD114 Lon: -125.4827 Lat: 47.6401 Depth: 1208.4000 meters Speed: 13.3935 km/hr ( 7.2397 knots) Heading: 197.3160 degrees Sonar Depth: 0.0000 m Sonar Altitude: 1208.4000 m Limits: Minimum Longitude: -125.5070 Maximum Longitude: -125.3658 Minimum Latitude: 47.6378 Maximum Latitude: 47.8496 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 746.9000 Maximum Altitude: 1208.4000 Minimum Depth: 655.5000 Maximum Depth: 1257.8000 Minimum Amplitude: 41.5000 Maximum Amplitude: 86.2500 Minimum Sidescan: 0.7943 Maximum Sidescan: 22594.1025 Data Record Type Notices: DN: 1072 MB_DATA_DATA (ID=1): survey data DN: 2 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 2 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: PN: 18 DATA PROBLEM (ID=2): Zero longitude or latitude in survey data PN: 741 DATA PROBLEM (ID=3): Instantaneous speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 0 0 0 0 0 0 1 1 1 1 CM: 0 0 0 0 0 0 1 1 1 1 CM: 0 0 0 0 0 1 1 1 1 0 CM: 0 0 0 0 1 1 1 1 1 0 CM: 0 0 0 1 1 1 1 1 0 0 CM: 0 0 1 1 1 1 1 0 0 0 CM: 0 0 1 1 1 1 1 0 0 0 CM: 0 1 1 1 1 1 0 0 0 0 CM: 1 1 1 1 1 1 0 0 0 0 CM: 1 1 1 1 1 0 0 0 0 0