Swath Data File: 20070726150105123_0016_20010516_065444pp.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: 73 Bathymetry Data (191 beams): Number of Beams: 13943 Number of Good Beams: 13197 94.65% Number of Zero Beams: 746 5.35% Number of Flagged Beams: 0 0.00% Amplitude Data (191 beams): Number of Beams: 13943 Number of Good Beams: 13197 94.65% Number of Zero Beams: 746 5.35% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 74752 Number of Good Pixels: 74752 100.00% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 0 0.00% Navigation Totals: Total Time: 0.4357 hours Total Track Length: 0.1121 km Average Speed: 0.2573 km/hr ( 0.1391 knots) Start of Data: Time: 05 16 2001 06:54:47.389000 JD136 Lon: -124.2502 Lat: 38.0830 Depth: 3790.5600 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 338.9800 degrees Sonar Depth: 4.8800 m Sonar Altitude: 3785.6800 m End of Data: Time: 05 16 2001 07:20:55.941000 JD136 Lon: -124.2502 Lat: 38.0830 Depth: 3790.6800 meters Speed: 0.4320 km/hr ( 0.2335 knots) Heading: 157.8600 degrees Sonar Depth: 4.2800 m Sonar Altitude: 3786.4000 m Limits: Minimum Longitude: -124.4219 Maximum Longitude: -124.0952 Minimum Latitude: 38.0035 Maximum Latitude: 38.1533 Minimum Sonar Depth: 4.1500 Maximum Sonar Depth: 6.0100 Minimum Altitude: 0.0000 Maximum Altitude: 3790.7200 Minimum Depth: 5.4600 Maximum Depth: 4035.4800 Minimum Amplitude: -36.5000 Maximum Amplitude: 8.5000 Minimum Sidescan: 0.0000 Maximum Sidescan: 73.0000 Data Record Type Notices: DN: 73 MB_DATA_DATA (ID=1): survey data DN: 95 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: 1 MB_DATA_STOP (ID=11): Simrad stop datagram DN: 1602 MB_DATA_NAV (ID=12): Navigation record DN: 66 MB_DATA_RUN_PARAMETER (ID=13): Simrad runtime parameter datagram DN: 1602 MB_DATA_CLOCK (ID=14): Simrad clock datagram DN: 158 MB_DATA_HEADING (ID=17): Heading record DN: 1603 MB_DATA_ATTITUDE (ID=18): Attitude record DN: 8 MB_DATA_SSV (ID=19): Surface sound speed record Nonfatal Error Notices: EN: 95 MB_ERROR_COMMENT (ID=-5): Comment record EN: 5042 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 1 1 1 1 0 1 1 CM: 0 0 0 1 1 1 1 1 1 1 CM: 0 0 1 1 1 1 1 1 1 1 CM: 0 0 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: 1 1 1 1 1 1 1 1 1 0 CM: 1 1 1 1 1 1 1 1 0 0 CM: 0 1 1 1 1 1 1 0 0 0 CM: 1 1 0 0 1 1 0 0 0 0