To view supplemental information, from the DSSVue main window, from the Display menu, click Supplemental Information, the Location and Supplemental Information dialog box will open (shown below).

Supplemental information for a pathname includes the following:
Type:The type of the data in the data set, such as regular-interval time series or paired data, etc. The number is the HEC-DSS internal number stored with the data.
Last Written:The date and time the latest data was written.
Record tag:Tag ID used with legacy programs.
Version:The number of times this data set has been written to.
Precision:Indicates if this data set is single (4 bytes per value) or double precision (8 bytes per value).
Display Precision:Precision used to view the data in tables. This number is the number of digits to the right of the decimal place to show and is automatically set when data is entered.
Compression:Displays the type of compression used if the data record has been compressed.
Password Protected:Displays Yes if the data is password protected.
Supplemental Info:Meta-data set in the user header. This can be a variety of information, dependent on the program that stored it. Often, data is given in a key: parameter format.
Coordinate System:Coordinate system identifying the location. Available coordinate systems include: Lat/long, State Plane FIPS, State Plane ADS, UTM, or Local (other).
Coordinate ID:The UTM zone number, or FIPS SPEC number or ADS SPCS number.
Horizontal Datum:Horizontal datum can be either: unset, NAD83, NAD27, WAS84, WAS72, or Local (other).
Datum Units:Units of the datum, including: Not Specified, English, SI, Decimal Degrees, or Degrees Minutes Seconds.
X Coordinate:Longitude, Easting or decimal degrees (negative for Western Hemisphere).
Y Coordinate:Latitude, Northing or decimal degrees
Time Zone ID:Time zone identifier for this location
Time Zone Offset: Offset from UTC, in milliseconds.