About tables

Acoustic data

Available for a supported acoustic variable and includes:

• No. (Ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Data file (the name of the source raw data file)
• Start range (m)
• Stop range (m)
• Data points (number of samples in the ping)

Notes:

• An export via the Table menu is handled as for a data export. Exports to several file formats may be available.
• For the Sector select operator, Sector type and Angle are specified by the operator.

Available for Interval analysis virtual variables, including Interval analysis - Bottom feature, Interval analysis - Single targets, and Interval analysis - Sv. Each line includes:

• No. (Number of the interval)
• Date/time (yyyy-MMM-dd HH:mm:ss.ssss)
• Analysis feature
• Status

Bottom classification data

Available for a bottom points variable. Each line will contain data for a bottom classification and can include:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Latitude (°)
• Longitude (°)
• Altitude (m)
• Depth (m)
• Class+
• Bottom_roughness_normalized
• Bottom_hardness_normalized*
• First_bottom_length_normalized
• Second_bottom_length_normalized*
• Bottom_rise_time_normalized
• Bottom_line_depth_mean
• Bottom_max_Sv
• Bottom_kurtosis
• Bottom_skewness

Notes:

• The table displays extracted (user specified) bottom features.
• *The Bottom_hardness_normalized and the Second_bottom_length_normalized are based on the existence and measurability of the second bottom echo.
• +Modify a bottom point's Class by selecting a different class from the Class list. An exported bottom points file outputs a Class_name and Class_ID.

Line data

Available for line data depth and line data heave variables. Each line in the table may contain the following data for a single time/depth line coordinate:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Data file (the name of the source raw data file)
• Depth (m)
• Status

Notes:

• A raw line variable may have a related Position GPS fix variable.
• Depth is referenced to the Z coordinate of the water level. Positive depths are reported for displacement below the water level.

Matrix data

Available for matrix variables. Each line in the table may contain the following:

• No. (Ping index)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Data file (the name of the source raw data file)
• Start range (m)
• Stop range (m)
• Data points
• Major beam count
• Minor beam count
• Total sample count
• Major angle start (°)
• Major angle stop (°)
• Minor angle start (°)
• Minor angle stop (°)

Notes:

• Raw matrix variables can only be displayed as a general summary table. Use Sector select or Maximum intensity - matrix to extract multibeam data from matrix variables. See Exporting matrix variable data.

Position GPS fixes

Available for a GPS fix variable. Each line in the table will contain the following data for a single position GPS fix:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Data file (the name of the source raw data file)
• Latitude (°)
• Longitude (°)
• Source (any NMEA GPS-fix letter groups identified by Echoview)
• Status
• Distance (nmi) (distance estimate between fixes is displayed and exported)

Notes:

• GPS data from Simrad GL Telegrams can contain Altitude values which may be derived as a line depth variable.
• See Determining GPS fix status for more information.

Time series data

• Heading data
• Length data
• Pitch data
• Roll data
• Speed data
• Vessel logs
• Virtual analysis data
• Virtual calibration data
• Virtual time series data

Available for a time series variable of supported data types. Each line in the table will contain the following data for a single determination of the data type:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Data file (the name of the source raw data file)
• Time series data name or time series as a Virtual time series, Virtual analysis data or virtual calibration data. Time series derived from data read from file may include:
  • Heading (°)
  • Length (m)
  • Pitch (°)
  • Roll (°)
  • Speed (m/s)
  • Distance (nmi) for vessel logs
  • Calibration
• Status

Available for a time series collection variable. The table shows one column per contained series, with a corresponding Status column for each series. Each row includes:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.ssss)
• Data file (name of the source raw data file, if applicable)
• Series value columns (one per contained series; header shows series name and unit when defined)
• Status columns (one per series; refers to the series column immediately to its left)

Notes:

• CSV-imported series with an undefined type show no units until extracted as a typed series via Time series select.
• Standard no-data sentinels (e.g., -9.9e+37) display as no data.
• If the collection has no measurements yet (e.g., source file not read), the table will be empty until data becomes available.
• Data columns auto-size from their headers with a sensible minimum width.

This variable is used by the Time series select operator.

Time series scatter plot

Available for a time series scatter plot. The table shows one column per characteristic series with a corresponding Status column. Each row includes:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.ssss)
• Data file (the name of the source raw data file, if applicable)
• Time series first name column
• Time series first name value column
• First series Status column
• Time series second name column
• Time series second name value column
• Second series Status column

Notes:

• The table of a scatter plot shows the source time series collection for the scatter plot's time series.

Transect group

Double-click a transect group object to open the transect group table. Each row in the table defines a transect:

• ID (An integer representing the index or transect number)
• Name (A string—this is unique within the transect group)
• Start time (yyyy-MM-dd HH:mm:ss.sss)
• Stop time (yyyy-MM-dd HH:mm:ss.sss)
• Notes (A string—your customized description)

Echoview includes the above fields in the *.transect.csv export.

Right-click to open the shortcut menu for options to:

• create a transect with New transect...
• delete the selected transect with Delete Transect
• access the Transect Properties dialog box with Transect Properties
• access the Transect Group Properties dialog box Transect Group Properties
• Synchronize all open echograms and cruisetracks to the selected transect (refer to Inspecting transects) with Synchronize To Transect

Available for a virtual impedance statistic variable. Statistics are for a specified pair of impedance statistic and transducer component. Each line in the table will contain the following:

• No. (Ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.sss)
• Impedance statistic (Ohms)
• Status

Transmission time series collection

Available for a transmission time series collection variable. The table shows one column per characteristic series with a corresponding Status column:

• No. (Index or ping number)
• Date/time (yyyy-MMM-dd HH:mm:ss.ssss)
• Data file (name of the source raw data file, if applicable)
• Time series value columns (one per contained series; header shows series name and unit (e.g., Ohms) when defined)
• Status columns (one per series; refers to the series column immediately to its left)

Notes:

• Undefined series display without units until extracted as a typed series.
• Standard no-data values (e.g., -9.9e+37) display as no data.

This variable is used by the Transmission time series select operator.

Unspecified time series variables are output by a Time series select operator that is configured to use an Unspecified data type. The data values are handled as unitless. Each line includes:

• No. (Number of the interval)
• Date/time (yyyy-MMM-dd HH:mm:ss.ssss)
• Custom time series name
• Status