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Recent News

Here is a listing of PASSCAL News items from the last 6 months. If you want to look up something older, you should check the News Archive.

Employment Opportunity at IRIS PASSCAL: Hardware Specialist

IRIS/PASSCAL at New Mexico Tech is seeking a Hardware Specialist to support facility activities. The Hardware Specialist's duties will include: Support of hardware engineering staff; Assist with testing and maintenance records for seismic and ancillary equipment; Work in warehouse packing, preparing and inspecting of equipment for shipping; Assist with testing of non-pool or in-house equipment; Assist with in-field experiments; and, Train new work study students.

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Narod Intelligent Magnetotelluric Systems (NIMS) for MT investigations

Until October 1, 2020, the PIC has partnered with the National Geoelectromagnetic Facility (NGF) at Oregon State University (http://ngf.oregonstate.edu/) to offer 27 Narod Intelligent Magnetotelluric Systems (NIMS) for MT investigations. The NIMS is a 1 Hz sample rate long-period MT instrument. It includes a Triaxial ring-core magnetometer (left), OSU Pb-PbCl2 gel-type electrodes (top) and a receiver unit which contains its data acquisition system (bottom). The NIMS receivers have been recently updated to support continued usage. They contain new GNSS receivers to replace the original GPS receivers, providing a faster satellite lock and larger set of satellite constellations and improving the ability to acquire precise system timing under challenging conditions, such as extensive tree canopy.

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PASSOFT Software Installation Updated

 New installation scripts for the PASSOFT software suite have been developed by the software group, and are now available for public download on this page. The PASSOFT suite includes 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 IRIS Data Management Center.

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GPS Rollover: Potential Data Logger Performance & Timing Issue

Late 2018 PASSCAL learned of a GPS week rollover event that can affect data logger performance and timing. PASSCAL has acquired a GNSS signal generator that can emulate GPS satellite signals. This satellite emulator allows us to test PASSCAL 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.

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PASSCAL Announces Software release: Nexus, a simple tool for creating SEED meta-data.

PASSCAL is pleased to announce the release of Nexus, a simple tool for creating SEED meta-data.

Nexus is a software tool with a graphical interface that allows users to quickly and easily create and modify SEED meta-data. It outputs StationXML, the recently adopted replacement format for Dataless SEED. Nexus greatly simplifies preparing data for archival at the DMC. 

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