Software

Important Hardware/Software Notes for Researchers Using EPIC Equipment

This page includes important Hardware/Software Notes for Researchers Using EPIC Equipment. January 17, 2019: GPS Rollover

Late 2018 EPIC learned of a GPS week rollover event that can affect data logger performance and timing. EPIC has acquired a GNSS signal generator that can emulate GPS satellite signals. This satellite emulator allows us to test EPIC equipment that relies on GPS timing and to determine how equipment will handle the GPS rollover event. To date, we have determined that some models of GPS engines are affected by the rollover. How the rollover errors manifest is dependent on the data logger’s model and firmware version of the GPS engine.

List of PASSOFT Applications

The 24 applications provided in the latest PASSOFT installation include the following.

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EPIC's PASSOFT Software has been Updated

EPIC provides open-source software, PASSOFT, for downloading seismic data from data recorders, for quality assessment, and for conversion to other data formats for analysis and archiving at the EarthScope Data Management Center. The latest version of PASSOFT is now available for general use. It is Python 3 compatible, and can be downloaded here.

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PQL II - Program for Viewing Data

April 21, 2009

 

PQL II is a program for viewing time-series data in any of four formats: MSEED, SEGY,  SAC, or AH (though, to be honest, EPIC staff has not used the AH option). It is the second generation PQL, hence the name PQL II. Both generations of code were written by Richard Boaz and EPIC staff supports the code on MAC OS X, LINUX, and Solaris platforms.To install PQL II on your system, you need to go the EPIC download page, or directly to PQL II download on EPIC's FTP area.

The HELP menus for PQL II are actually helpful. Use them a lot till you get to know the program.

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Software Resources

EPIC PASSOFT Software

EPIC provides open-source software for downloading seismic data from data recorders, for quality assessment, and for conversion to other data formats for analysis and archiving at the EarthScope Data Management Center.

PASSOFT is supported only for Mac and Linux operating systems, and not for Windows. Some Windows users have been able to use PASSOFT by first installing a Windows Subsystem for Linux.

Note - Python: We no longer support Python version lower than 3.9.

Note - MacOS: We no longer support MacOS version lower than 12 (Monterey).

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