Swath Data File: sb200104302000.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: 416 Bathymetry Data (151 beams): Number of Beams: 62816 Number of Good Beams: 47442 75.53% Number of Zero Beams: 14674 23.36% Number of Flagged Beams: 700 1.11% Amplitude Data (151 beams): Number of Beams: 62816 Number of Good Beams: 47442 75.53% Number of Zero Beams: 14674 23.36% Number of Flagged Beams: 700 1.11% Sidescan Data (2000 pixels): Number of Pixels: 832000 Number of Good Pixels: 528913 63.57% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 303087 36.43% Navigation Totals: Total Time: 0.9992 hours Total Track Length: 30.3587 km Average Speed: 30.3816 km/hr (16.4225 knots) Start of Data: Time: 04 30 2001 20:00:00.270000 JD120 Lon: -124.9977 Lat: 39.5800 Depth: 2896.5000 meters Speed: 30.4124 km/hr (16.4391 knots) Heading: 127.2080 degrees Sonar Depth: 0.0000 m Sonar Altitude: 2896.5000 m End of Data: Time: 04 30 2001 20:59:57.552000 JD120 Lon: -124.7209 Lat: 39.4141 Depth: 2825.7000 meters Speed: 27.9967 km/hr (15.1334 knots) Heading: 127.6210 degrees Sonar Depth: 0.0000 m Sonar Altitude: 2825.7000 m Limits: Minimum Longitude: -125.0420 Maximum Longitude: -124.6861 Minimum Latitude: 39.3788 Maximum Latitude: 39.6154 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 2633.8999 Maximum Altitude: 2964.3000 Minimum Depth: 2565.3999 Maximum Depth: 3195.6001 Minimum Amplitude: 44.7397 Maximum Amplitude: 94.4897 Minimum Sidescan: 2.6706 Maximum Sidescan: 50779.7996 Data Record Type Notices: DN: 416 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: 1 DATA PROBLEM (ID=3): Instantaneous speed exceeds 25 km/hr Coverage Mask: CM dimensions: 10 10 CM: 0 1 1 1 0 0 0 0 0 0 CM: 1 1 1 1 1 0 0 0 0 0 CM: 1 1 1 1 1 1 0 0 0 0 CM: 1 1 1 1 1 1 1 0 0 0 CM: 1 1 1 1 1 1 1 1 0 0 CM: 0 0 1 1 1 1 1 1 1 0 CM: 0 0 0 1 1 1 1 1 1 1 CM: 0 0 0 0 1 1 1 1 1 1 CM: 0 0 0 0 0 1 1 1 1 1 CM: 0 0 0 0 0 0 1 1 1 0