Swath Data File: sb2100_vf.19970418-1400pp.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: 255 Bathymetry Data (151 beams): Number of Beams: 38505 Number of Good Beams: 24666 64.06% Number of Zero Beams: 12175 31.62% Number of Flagged Beams: 1664 4.32% Amplitude Data (151 beams): Number of Beams: 38505 Number of Good Beams: 24666 64.06% Number of Zero Beams: 12175 31.62% Number of Flagged Beams: 1664 4.32% Sidescan Data (2000 pixels): Number of Pixels: 510000 Number of Good Pixels: 357278 70.05% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 152722 29.95% Navigation Totals: Total Time: 0.9982 hours Total Track Length: 21.8245 km Average Speed: 21.8633 km/hr (11.8180 knots) Start of Data: Time: 04 18 1997 12:58:37.881000 JD108 Lon: -120.7024 Lat: -3.5555 Depth: 4274.7002 meters Speed: 22.2193 km/hr (12.0104 knots) Heading: 283.8880 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4274.7002 m End of Data: Time: 04 18 1997 13:58:31.495000 JD108 Lon: -120.8948 Lat: -3.5159 Depth: 4315.2002 meters Speed: 21.4289 km/hr (11.5832 knots) Heading: 287.1020 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4315.2002 m Limits: Minimum Longitude: -120.9207 Maximum Longitude: -120.6876 Minimum Latitude: -3.6516 Maximum Latitude: -3.4534 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 4222.5000 Maximum Altitude: 4397.2002 Minimum Depth: 4122.7002 Maximum Depth: 4443.1001 Minimum Amplitude: 35.4794 Maximum Amplitude: 70.4794 Minimum Sidescan: 3.5166 Maximum Sidescan: 4485.8524 Data Record Type Notices: DN: 255 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 1 1 1 1 1 0 0 0 0 CM: 0 1 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: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 0 CM: 0 1 1 1 1 1 1 1 1 0 CM: 0 0 0 0 0 1 1 1 1 0