Swath Data File: sb2100_vf.19970428-1800pp.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: 232 Bathymetry Data (151 beams): Number of Beams: 35032 Number of Good Beams: 21081 60.18% Number of Zero Beams: 11900 33.97% Number of Flagged Beams: 2051 5.85% Amplitude Data (151 beams): Number of Beams: 35032 Number of Good Beams: 21081 60.18% Number of Zero Beams: 11900 33.97% Number of Flagged Beams: 2051 5.85% Sidescan Data (2000 pixels): Number of Pixels: 464000 Number of Good Pixels: 250932 54.08% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 213068 45.92% Navigation Totals: Total Time: 1.0001 hours Total Track Length: 1.1184 km Average Speed: 1.1183 km/hr ( 0.6045 knots) Start of Data: Time: 04 28 1997 16:58:29.729000 JD118 Lon: -124.9759 Lat: 8.0770 Depth: 4605.0000 meters Speed: 1.7013 km/hr ( 0.9196 knots) Heading: 36.7540 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4605.0000 m End of Data: Time: 04 28 1997 17:58:29.978000 JD118 Lon: -124.9708 Lat: 8.0779 Depth: 4579.1001 meters Speed: 1.3024 km/hr ( 0.7040 knots) Heading: 0.0020 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4579.1001 m Limits: Minimum Longitude: -125.0682 Maximum Longitude: -124.9001 Minimum Latitude: 8.0077 Maximum Latitude: 8.1724 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 4577.6001 Maximum Altitude: 4633.2002 Minimum Depth: 4423.1001 Maximum Depth: 4815.7002 Minimum Amplitude: 30.9794 Maximum Amplitude: 71.4794 Minimum Sidescan: 2.2607 Maximum Sidescan: 4647.9947 Data Record Type Notices: DN: 232 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: 0 0 0 0 0 1 0 0 0 0 CM: 0 1 1 1 1 1 0 0 0 0 CM: 0 1 1 1 1 1 0 0 0 0 CM: 1 1 1 1 1 1 0 0 0 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 0 0 1 1 1 1 1 CM: 0 0 0 0 0 1 1 1 1 1 CM: 0 0 0 0 0 1 1 1 1 0