Swath Data File: 20070727125807012_SBdespike.2002oct26.truep.mb32 MBIO Data Format ID: 32 Format name: MBF_SB2000SB Informal Description: SIO Swath-bathy SeaBeam 2000 format Attributes: SeaBeam 2000, bathymetry, 121 beams, binary, SIO. Metadata: Vessel: MELVILLE Institution: SIO Platform: Ship Sonar: Seabeam_2000 Sonar Version: Seabeam_2000_3.18 Cruise ID: VANC03MV Cruise Name: Vancouver_Expedition_leg_03 PI: Robert_Weller PI Institution: Woods_Hole_Oceanographic_Institute Client: NOAA Corrected Depths: YES Tide Corrected: NO Depths Manually Edited: NO Depths Auto-Edited: YES Roll Bias: -0.370000 degrees Pitch Bias: 0.000000 degrees Heading Bias: 0.000000 degrees Draft: 5.000000 m Data Totals: Number of Records: 2583 Bathymetry Data (121 beams): Number of Beams: 312543 Number of Good Beams: 236630 75.71% Number of Zero Beams: 75913 24.29% Number of Flagged Beams: 0 0.00% Amplitude Data (0 beams): Number of Beams: 0 Number of Good Beams: 0 0.00% Number of Zero Beams: 0 0.00% Number of Flagged Beams: 0 0.00% Sidescan Data (0 pixels): Number of Pixels: 0 Number of Good Pixels: 0 0.00% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 0 0.00% Navigation Totals: Total Time: 11.3092 hours Total Track Length: 179.4322 km Average Speed: 15.8661 km/hr ( 8.5763 knots) Start of Data: Time: 10 26 2002 12:34:31.500000 JD299 Lon: -84.0760 Lat: -20.0003 Depth: 4481.0000 meters Speed: 2.0257 km/hr ( 1.0950 knots) Heading: 94.3000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4481.0000 m End of Data: Time: 10 26 2002 23:53:04.500000 JD299 Lon: -82.3630 Lat: -20.0000 Depth: 4268.0000 meters Speed: 2.0313 km/hr ( 1.0980 knots) Heading: 92.0000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4268.0000 m Limits: Minimum Longitude: -84.0796 Maximum Longitude: -82.3611 Minimum Latitude: -20.0686 Maximum Latitude: -19.9273 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 4157.0000 Maximum Altitude: 4624.0000 Minimum Depth: 3948.0000 Maximum Depth: 4989.0000 Data Record Type Notices: DN: 2583 MB_DATA_DATA (ID=1): survey data DN: 67 MB_DATA_COMMENT (ID=2): comment DN: 21 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 1 MB_ERROR_TIME_GAP (ID=-1): Time gap in data EN: 67 MB_ERROR_COMMENT (ID=-5): Comment record EN: 21 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 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: 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