Swath Data File: 20070726145940025_0003_20010528_170819p.mb57 MBIO Data Format ID: 57 Format name: MBF_EM300MBA Informal Description: Simrad multibeam processing format Attributes: Old and new Simrad multibeams, EM12S, EM12D, EM121, EM120, EM300, EM100, EM1000, EM950, EM1002, EM3000, bathymetry, amplitude, and sidescan, up to 254 beams, variable pixels, ascii + binary, MBARI. Metadata: Vessel: Revelle Institution: SIO Platform: Ship Sonar: Simrad_EM-120 Sonar Version: EM120_Version_5.1u22-Kongsberg_Simrad_Norway_A/S_Horten Cruise ID: DRFT01RR Cruise Name: Drift_Expedition_Leg_01 PI: Fred_Spiess PI Institution: Scripps_Institution_of_Oceanography Client: OCE97-30870 Corrected Depths: YES Tide Corrected: NO Depths Manually Edited: NO Depths Auto-Edited: NO Roll Bias: 0.050000 degrees Pitch Bias: 0.000000 degrees Heading Bias: 0.000000 degrees Draft: 6.000000 m Data Totals: Number of Records: 5346 Bathymetry Data (191 beams): Number of Beams: 1021086 Number of Good Beams: 952637 93.30% Number of Zero Beams: 68449 6.70% Number of Flagged Beams: 0 0.00% Amplitude Data (191 beams): Number of Beams: 1021086 Number of Good Beams: 952637 93.30% Number of Zero Beams: 68449 6.70% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 5474304 Number of Good Pixels: 5474304 100.00% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 0 0.00% Navigation Totals: Total Time: 0.9997 hours Total Track Length: 23.1932 km Average Speed: 23.1992 km/hr (12.5401 knots) Start of Data: Time: 05 28 2001 17:08:20.220000 JD148 Lon: -124.3033 Lat: 44.2242 Depth: 80.1100 meters Speed: 6.6960 km/hr ( 3.6195 knots) Heading: 195.4200 degrees Sonar Depth: 5.9300 m Sonar Altitude: 74.2000 m End of Data: Time: 05 28 2001 18:08:19.292000 JD148 Lon: -124.3742 Lat: 44.0249 Depth: 113.1300 meters Speed: 6.4440 km/hr ( 3.4832 knots) Heading: 195.4100 degrees Sonar Depth: 5.5800 m Sonar Altitude: 108.0100 m Limits: Minimum Longitude: -124.3779 Maximum Longitude: -124.3007 Minimum Latitude: 44.0242 Maximum Latitude: 44.2246 Minimum Sonar Depth: 4.1700 Maximum Sonar Depth: 6.1300 Minimum Altitude: 73.2500 Maximum Altitude: 109.0600 Minimum Depth: 64.2700 Maximum Depth: 119.5400 Minimum Amplitude: -43.0000 Maximum Amplitude: 5.0000 Minimum Sidescan: 0.0000 Maximum Sidescan: 65.5000 Data Record Type Notices: DN: 5346 MB_DATA_DATA (ID=1): survey data DN: 56 MB_DATA_COMMENT (ID=2): comment DN: 1 MB_DATA_VELOCITY_PROFILE (ID=6): SVP DN: 1 MB_DATA_START (ID=10): Simrad start datagram DN: 2 MB_DATA_STOP (ID=11): Simrad stop datagram DN: 3601 MB_DATA_NAV (ID=12): Navigation record DN: 402 MB_DATA_RUN_PARAMETER (ID=13): Simrad runtime parameter datagram DN: 3601 MB_DATA_CLOCK (ID=14): Simrad clock datagram DN: 355 MB_DATA_HEADING (ID=17): Heading record DN: 3601 MB_DATA_ATTITUDE (ID=18): Attitude record DN: 16 MB_DATA_SSV (ID=19): Surface sound speed record Nonfatal Error Notices: EN: 56 MB_ERROR_COMMENT (ID=-5): Comment record EN: 11580 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record EN: 2 MB_ERROR_NOT_ENOUGH_DATA (ID=-21): Not enough data to perform spline interpolation Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 0 0 0 0 0 0 0 0 1 1 CM: 0 0 0 0 0 0 1 1 1 0 CM: 0 0 0 0 0 1 1 1 0 0 CM: 0 0 0 1 1 1 1 0 0 0 CM: 0 0 1 1 1 0 0 0 0 0 CM: 0 0 1 1 0 0 0 0 0 0 CM: 0 0 1 1 0 0 0 0 0 0 CM: 0 1 1 1 0 0 0 0 0 0 CM: 1 1 1 0 0 0 0 0 0 0 CM: 1 1 0 0 0 0 0 0 0 0