Swath Data File: 20070726150016058_0007_20010527_230632p.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: 222 Bathymetry Data (191 beams): Number of Beams: 42402 Number of Good Beams: 42259 99.66% Number of Zero Beams: 143 0.34% Number of Flagged Beams: 0 0.00% Amplitude Data (191 beams): Number of Beams: 42402 Number of Good Beams: 42259 99.66% Number of Zero Beams: 143 0.34% Number of Flagged Beams: 0 0.00% Sidescan Data (1024 pixels): Number of Pixels: 227328 Number of Good Pixels: 227328 100.00% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 0 0.00% Navigation Totals: Total Time: 0.9894 hours Total Track Length: 23.4942 km Average Speed: 23.7455 km/hr (12.8354 knots) Start of Data: Time: 05 27 2001 23:06:41.809000 JD147 Lon: -128.8367 Lat: 44.7667 Depth: 2851.0300 meters Speed: 6.4440 km/hr ( 3.4832 knots) Heading: 91.3200 degrees Sonar Depth: 5.5100 m Sonar Altitude: 2841.9200 m End of Data: Time: 05 28 2001 00:06:03.710000 JD148 Lon: -128.5399 Lat: 44.7664 Depth: 2834.3700 meters Speed: 6.4440 km/hr ( 3.4832 knots) Heading: 88.6200 degrees Sonar Depth: 5.4900 m Sonar Altitude: 2828.8800 m Limits: Minimum Longitude: -128.8392 Maximum Longitude: -128.5354 Minimum Latitude: 44.6849 Maximum Latitude: 44.8481 Minimum Sonar Depth: 4.8100 Maximum Sonar Depth: 5.5500 Minimum Altitude: 2548.0000 Maximum Altitude: 2847.8400 Minimum Depth: 2310.4300 Maximum Depth: 3002.0800 Minimum Amplitude: -39.5000 Maximum Amplitude: 16.0000 Minimum Sidescan: 0.0000 Maximum Sidescan: 71.5000 Data Record Type Notices: DN: 222 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: 1 MB_DATA_STOP (ID=11): Simrad stop datagram DN: 3575 MB_DATA_NAV (ID=12): Navigation record DN: 27 MB_DATA_RUN_PARAMETER (ID=13): Simrad runtime parameter datagram DN: 3573 MB_DATA_CLOCK (ID=14): Simrad clock datagram DN: 352 MB_DATA_HEADING (ID=17): Heading record DN: 3575 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: 11121 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record EN: 3 MB_ERROR_NOT_ENOUGH_DATA (ID=-21): Not enough data to perform spline interpolation 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