Swath Data File: 20070727125805008_SBdespike.2002oct21.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: 763 Bathymetry Data (121 beams): Number of Beams: 92323 Number of Good Beams: 37995 41.15% Number of Zero Beams: 54328 58.85% 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: 3.0275 hours Total Track Length: 52.8614 km Average Speed: 17.4604 km/hr ( 9.4381 knots) Start of Data: Time: 10 20 2002 23:53:22.500000 JD293 Lon: -85.0767 Lat: -19.6633 Depth: 4548.0000 meters Speed: 1.7575 km/hr ( 0.9500 knots) Heading: 188.0000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4548.0000 m End of Data: Time: 10 21 2002 02:55:01.500000 JD294 Lon: -85.1608 Lat: -20.1249 Depth: 4468.0000 meters Speed: 0.3811 km/hr ( 0.2060 knots) Heading: 201.6000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 4468.0000 m Limits: Minimum Longitude: -85.2330 Maximum Longitude: -85.0065 Minimum Latitude: -20.1639 Maximum Latitude: -19.6565 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 0.0000 Maximum Altitude: 5035.0000 Minimum Depth: 3739.0000 Maximum Depth: 5393.0000 Data Record Type Notices: DN: 763 MB_DATA_DATA (ID=1): survey data DN: 67 MB_DATA_COMMENT (ID=2): comment DN: 7 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 67 MB_ERROR_COMMENT (ID=-5): Comment record EN: 7 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 1 1 1 1 1 1 1 CM: 0 0 0 1 1 1 1 1 1 1 CM: 0 0 0 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 0 CM: 0 0 1 1 1 1 1 1 1 0 CM: 0 0 1 1 1 1 1 1 1 0 CM: 0 1 1 1 1 1 1 1 1 0 CM: 1 1 1 1 1 1 1 1 0 0 CM: 1 1 1 1 1 1 1 1 0 0