Swath Data File: sb2100_vf.19970318-1400p.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: GENE03RR Cruise Name: Genesis_Expedition_leg_03 PI: Alan_Mix PI Institution: Oregon_State_University Client: OCE93-14679 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: 337 Bathymetry Data (151 beams): Number of Beams: 50887 Number of Good Beams: 38422 75.50% Number of Zero Beams: 10181 20.01% Number of Flagged Beams: 2284 4.49% Amplitude Data (151 beams): Number of Beams: 50887 Number of Good Beams: 38422 75.50% Number of Zero Beams: 10181 20.01% Number of Flagged Beams: 2284 4.49% Sidescan Data (2000 pixels): Number of Pixels: 674000 Number of Good Pixels: 378274 56.12% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 295726 43.88% Navigation Totals: Total Time: 0.9983 hours Total Track Length: 13.2675 km Average Speed: 13.2902 km/hr ( 7.1839 knots) Start of Data: Time: 03 18 1997 12:58:34.257000 JD77 Lon: -73.4641 Lat: -23.7943 Depth: 4022.8000 meters Speed: 12.8017 km/hr ( 6.9198 knots) Heading: 325.8260 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4022.8000 m End of Data: Time: 03 18 1997 13:58:28.109000 JD77 Lon: -73.5403 Lat: -23.6972 Depth: 3749.8000 meters Speed: 12.9872 km/hr ( 7.0201 knots) Heading: 324.7890 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3749.8000 m Limits: Minimum Longitude: -73.5983 Maximum Longitude: -73.4118 Minimum Latitude: -23.8308 Maximum Latitude: -23.6624 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 3726.5000 Maximum Altitude: 4032.5000 Minimum Depth: 3702.8000 Maximum Depth: 4214.7002 Minimum Amplitude: 23.9794 Maximum Amplitude: 72.7294 Minimum Sidescan: 0.8792 Maximum Sidescan: 4682.5331 Data Record Type Notices: DN: 337 MB_DATA_DATA (ID=1): survey data DN: 39 MB_DATA_COMMENT (ID=2): comment DN: 2 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 39 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 1 1 1 0 0 0 CM: 0 0 0 1 1 1 1 1 0 0 CM: 0 1 1 1 1 1 1 1 1 0 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: 0 1 1 1 1 1 1 1 1 1 CM: 0 1 1 1 1 1 1 1 1 0 CM: 0 0 1 1 1 1 1 0 0 0 CM: 0 0 0 1 1 1 0 0 0 0