Swath Data File: sb2100_vf.19970419-2100pp.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: 252 Bathymetry Data (151 beams): Number of Beams: 38052 Number of Good Beams: 25198 66.22% Number of Zero Beams: 11262 29.60% Number of Flagged Beams: 1592 4.18% Amplitude Data (151 beams): Number of Beams: 38052 Number of Good Beams: 25198 66.22% Number of Zero Beams: 11262 29.60% Number of Flagged Beams: 1592 4.18% Sidescan Data (2000 pixels): Number of Pixels: 504000 Number of Good Pixels: 347928 69.03% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 156072 30.97% Navigation Totals: Total Time: 0.9963 hours Total Track Length: 0.6401 km Average Speed: 0.6425 km/hr ( 0.3473 knots) Start of Data: Time: 04 19 1997 19:58:45.908000 JD109 Lon: -124.9977 Lat: -2.4989 Depth: 4542.5000 meters Speed: 3.1540 km/hr ( 1.7049 knots) Heading: 142.7000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4542.5000 m End of Data: Time: 04 19 1997 20:58:32.489000 JD109 Lon: -124.9970 Lat: -2.4960 Depth: 4544.2002 meters Speed: 0.3785 km/hr ( 0.2046 knots) Heading: 218.2530 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4544.2002 m Limits: Minimum Longitude: -125.0662 Maximum Longitude: -124.9145 Minimum Latitude: -2.5626 Maximum Latitude: -2.4150 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 4513.2002 Maximum Altitude: 4601.2002 Minimum Depth: 4490.7002 Maximum Depth: 4790.7002 Minimum Amplitude: 34.9794 Maximum Amplitude: 70.9794 Minimum Sidescan: 1.5036 Maximum Sidescan: 3630.0991 Data Record Type Notices: DN: 252 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 0 1 1 1 0 CM: 0 1 1 0 0 1 1 1 1 1 CM: 1 1 1 0 0 1 1 1 1 1 CM: 1 1 1 1 0 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 0 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 0 0 1 1 1 0 CM: 0 1 1 1 0 0 0 1 1 1