This data set contains Rock Abrasion Tool (RAT) Operations Experiment Data Records (EDRs) acquired by Spirit (MER 2) during the Mars Exploration Rover Mission.

 
Citation Gorevan, Stephen, MER 2 Mars Rock Abrasion Tool EDR Ops V1.0, NASA Planetary Data System, MER2-M-RAT-2-EDR-OPS-V1.0, 2004.
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Data Set Abstract This data set contains the primary data that is useful for investigating the mechanical properties of the varied rock types that the rover encountered. During all phases of RAT operations (i.e., calibration, seek-scan, grinding, diagnostic or brush station), the RAT application software stores sensor values and information about the RAT machine state. RAT data products will be comprised of time-ordered data records that include motor positions, motor currents, contact switch states, temperature sensor values, bus voltage, software/algorithm states, error bit fields, etc. Data records will be written to the detailed data product at a nominal rate of 2-Hz.
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    Additional Information
    Mission Information MARS EXPLORATION ROVER
    Data Set Information MER2-M-RAT-2-EDR-OPS-V1.0
    Instrument Host Information MER2
    Instrument Information RAT
    Target Information MARS