Swath Data File: sb2100_vf.19970426-1800pp.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. Metadata: Vessel: Revelle Institution: SIO Platform: Ship Sonar: Seabeam_2112 Sonar Version: Seabeam_2112_1.2.0.A Cruise ID: GENE04RR Cruise Name: Genesis_Expedition_leg_04 PI: Robert_Weller PI Institution: Woods_Hole_Oceanographic_Institution Client: NOAA Corrected Depths: YES Tide Corrected: NO Depths Manually Edited: NO Depths Auto-Edited: NO Roll Bias: -0.580000 degrees Pitch Bias: -0.620000 degrees Heading Bias: 0.000000 degrees Draft: 6.000000 m Data Totals: Number of Records: 230 Bathymetry Data (151 beams): Number of Beams: 34730 Number of Good Beams: 22411 64.53% Number of Zero Beams: 10880 31.33% Number of Flagged Beams: 1439 4.14% Amplitude Data (151 beams): Number of Beams: 34730 Number of Good Beams: 22411 64.53% Number of Zero Beams: 10880 31.33% Number of Flagged Beams: 1439 4.14% Sidescan Data (2000 pixels): Number of Pixels: 460000 Number of Good Pixels: 278132 60.46% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 181868 39.54% Navigation Totals: Total Time: 0.9931 hours Total Track Length: 16.1782 km Average Speed: 16.2912 km/hr ( 8.8060 knots) Start of Data: Time: 04 26 1997 16:58:41.654000 JD116 Lon: -124.9926 Lat: 1.0073 Depth: 4579.0000 meters Speed: 2.2839 km/hr ( 1.2345 knots) Heading: 76.0960 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4579.0000 m End of Data: Time: 04 26 1997 17:58:16.695000 JD116 Lon: -124.9895 Lat: 1.1475 Depth: 4647.0000 meters Speed: 25.4178 km/hr (13.7394 knots) Heading: 356.9300 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4647.0000 m Limits: Minimum Longitude: -125.0938 Maximum Longitude: -124.9114 Minimum Latitude: 0.9342 Maximum Latitude: 1.1521 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 4529.2002 Maximum Altitude: 4682.5000 Minimum Depth: 4464.2002 Maximum Depth: 4751.2002 Minimum Amplitude: 32.7294 Maximum Amplitude: 68.9794 Minimum Sidescan: 1.2559 Maximum Sidescan: 3090.1227 Data Record Type Notices: DN: 230 MB_DATA_DATA (ID=1): survey data DN: 78 MB_DATA_COMMENT (ID=2): comment DN: 2 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 78 MB_ERROR_COMMENT (ID=-5): Comment record EN: 2 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 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 1 1 1 1 1 1 1 CM: 1 1 0 0 0 1 1 1 1 0 CM: 0 0 0 0 0 1 1 1 1 1 CM: 0 0 0 0 0 1 1 1 0 0