Swath Data File: sb2100_vf.19970318-2300p.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: 345 Bathymetry Data (151 beams): Number of Beams: 52095 Number of Good Beams: 38890 74.65% Number of Zero Beams: 11081 21.27% Number of Flagged Beams: 2124 4.08% Amplitude Data (151 beams): Number of Beams: 52095 Number of Good Beams: 38890 74.65% Number of Zero Beams: 11081 21.27% Number of Flagged Beams: 2124 4.08% Sidescan Data (2000 pixels): Number of Pixels: 690000 Number of Good Pixels: 375484 54.42% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 314516 45.58% Navigation Totals: Total Time: 0.9973 hours Total Track Length: 16.9238 km Average Speed: 16.9691 km/hr ( 9.1725 knots) Start of Data: Time: 03 18 1997 21:58:39.821000 JD77 Lon: -73.4922 Lat: -23.5210 Depth: 3734.6001 meters Speed: 12.6495 km/hr ( 6.8376 knots) Heading: 74.6640 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3734.6001 m End of Data: Time: 03 18 1997 22:58:30.216000 JD77 Lon: -73.5943 Lat: -23.5994 Depth: 3424.3000 meters Speed: 19.7870 km/hr (10.6957 knots) Heading: 240.4000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3424.3000 m Limits: Minimum Longitude: -73.6257 Maximum Longitude: -73.4081 Minimum Latitude: -23.6547 Maximum Latitude: -23.4540 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 3421.5000 Maximum Altitude: 3788.0000 Minimum Depth: 3277.6001 Maximum Depth: 3980.8000 Minimum Amplitude: 24.7294 Maximum Amplitude: 71.9794 Minimum Sidescan: 0.5024 Maximum Sidescan: 4725.6119 Data Record Type Notices: DN: 345 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 0 1 1 1 1 0 CM: 0 0 0 0 1 1 1 1 1 0 CM: 0 0 1 1 1 1 1 1 1 1 CM: 0 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 1 1 1 1 1 1 1 1 0 CM: 0 1 1 1 1 1 1 0 0 0 CM: 0 0 1 1 1 0 0 0 0 0