Swath Data File: sb2100_vf.19970225-2114p.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: 77 Bathymetry Data (151 beams): Number of Beams: 11627 Number of Good Beams: 4508 38.77% Number of Zero Beams: 6162 53.00% Number of Flagged Beams: 957 8.23% Amplitude Data (151 beams): Number of Beams: 11627 Number of Good Beams: 4508 38.77% Number of Zero Beams: 6162 53.00% Number of Flagged Beams: 957 8.23% Sidescan Data (2000 pixels): Number of Pixels: 154000 Number of Good Pixels: 150754 97.89% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 3246 2.11% Navigation Totals: Total Time: 0.2274 hours Total Track Length: 2.6820 km Average Speed: 11.7939 km/hr ( 6.3751 knots) Start of Data: Time: 02 25 1997 20:58:39.095000 JD56 Lon: -76.9353 Lat: -50.6345 Depth: 3963.0000 meters Speed: 16.9724 km/hr ( 9.1743 knots) Heading: 220.3380 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3963.0000 m End of Data: Time: 02 25 1997 21:12:17.756000 JD56 Lon: -76.9540 Lat: -50.6504 Depth: 3963.3000 meters Speed: 6.0224 km/hr ( 3.2553 knots) Heading: 10.1430 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3963.3000 m Limits: Minimum Longitude: -77.0397 Maximum Longitude: -76.8740 Minimum Latitude: -50.6866 Maximum Latitude: -50.6086 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 3622.8000 Maximum Altitude: 4277.7002 Minimum Depth: 3708.1001 Maximum Depth: 4329.2002 Minimum Amplitude: 28.7294 Maximum Amplitude: 76.4794 Minimum Sidescan: 1.3934 Maximum Sidescan: 7383.6937 Data Record Type Notices: DN: 77 MB_DATA_DATA (ID=1): survey data DN: 39 MB_DATA_COMMENT (ID=2): comment DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 39 MB_ERROR_COMMENT (ID=-5): Comment record EN: 1 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 0 1 1 1 1 1 0 0 0 0 CM: 1 1 1 1 1 1 1 0 0 0 CM: 1 1 1 1 1 1 1 1 0 0 CM: 1 1 1 1 1 1 1 1 1 0 CM: 1 1 1 1 1 1 1 1 0 0 CM: 0 1 1 1 1 1 1 1 1 0 CM: 0 1 1 1 1 1 1 1 1 1 CM: 0 0 0 1 1 1 1 1 1 1 CM: 0 0 1 1 1 1 1 1 1 1 CM: 0 0 1 1 1 1 1 1 1 1