Use of station data from IGS site logs

Importing IGS Site Logs

Besides manually entering the settings, you can also import most of the station data from data files in the IGS site log format.

The IGS site logs are ASCII text files conforming to the format specified by the IGS Central Bureau. For detailed information on the file format, refer to igscb.jpl.nasa.gov/igscb/station/general/blank.log.

The site logs contain detailed information on site properties, such as position information, antenna information, meteorological information, and much more. After import of site log information, the global station list stores the information internally and makes it available to all Trimble 4D Control Server modules and other modern Trimble Infrastructure Solutions software.

IGS site logs maintain the history of the site information. When importing data from such a file, Trimble 4D Control Server always imports the last available entry, thus ensuring that the most up-to-date settings are used.

Trimble 4D Control Server supports the import of multiple site logs in one step. By selecting a folder, all .log files in this folder are imported. Trimble 4D Control Server recognizes matching files if the "Station Code / Four Character ID" within the IGS site log is identical to the Station code in the Trimble 4D Control Server global station list. During import, Trimble 4D Control Server compares its known station settings with those from the site logs, displays the differences in a comparison dialog and lets you discard the import of objectionable data.

Exporting IGS Site Logs

You can export station information to files in the IGS site log format. Export information includes the following:

• Station Name corresponding with the IGS "Site Name"; Station Code corresponding with the IGS "Four Character ID".
• Positions in Cartesian X,Y,Z coordinates.
• Tectonic plate; reference time and velocities are written into the IGS Site Location Information section as "Additional Information".
• Receiver information, such as type, observed satellite system, serial number, firmware version, and elevation cutoff setting.
• Antenna information, such as type, serial number, height offset.
• RINEX header information, such as the agency, and an unlimited number of 60-character comment lines.