Swath Data File: sb2100_vf.19970321-1200p.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: 320 Bathymetry Data (151 beams): Number of Beams: 48320 Number of Good Beams: 31886 65.99% Number of Zero Beams: 14435 29.87% Number of Flagged Beams: 1999 4.14% Amplitude Data (151 beams): Number of Beams: 48320 Number of Good Beams: 31886 65.99% Number of Zero Beams: 14435 29.87% Number of Flagged Beams: 1999 4.14% Sidescan Data (2000 pixels): Number of Pixels: 640000 Number of Good Pixels: 371250 58.01% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 268750 41.99% Navigation Totals: Total Time: 0.9956 hours Total Track Length: 24.9041 km Average Speed: 25.0134 km/hr (13.5208 knots) Start of Data: Time: 03 21 1997 10:58:35.849000 JD80 Lon: -76.4331 Lat: -22.5375 Depth: 4598.7998 meters Speed: 24.2583 km/hr (13.1126 knots) Heading: 280.3700 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4598.7998 m End of Data: Time: 03 21 1997 11:58:20.115000 JD80 Lon: -76.6695 Lat: -22.4894 Depth: 4351.2002 meters Speed: 25.0690 km/hr (13.5508 knots) Heading: 281.4770 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4351.2002 m Limits: Minimum Longitude: -76.6838 Maximum Longitude: -76.4230 Minimum Latitude: -22.6042 Maximum Latitude: -22.4328 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 4339.5000 Maximum Altitude: 4762.1001 Minimum Depth: 4292.7002 Maximum Depth: 4969.1001 Minimum Amplitude: 35.2294 Maximum Amplitude: 70.9794 Minimum Sidescan: 3.7678 Maximum Sidescan: 4485.0988 Data Record Type Notices: DN: 320 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: 1 1 1 1 1 0 0 0 0 0 CM: 1 1 1 1 1 1 1 1 0 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 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: 0 0 1 1 1 1 1 1 1 1 CM: 0 0 0 0 0 1 1 1 1 1