The GRaND Reduced Data Records (RDR) contain a time series of calibrated spectra, counting data, ephemeris, pointing, and geometry information for use in geochemical studies of Vesta.

 
Citation Prettyman, T.H. AND N. YAMASHITA, DAWN GRAND CALIBRATED (RDR) VESTA APPROACH AND ORBITAL COUNTS V1.0, DAWN-A-GRAND-3-RDR-VESTA-COUNTS-V1.0. NASA Planetary Data System, 2014.
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Data Set Abstract The GRaND Reduced Data Records (RDR) contain a time series of calibrated spectra, counting data, and ephemeris, pointing, and geometry (EPG) data. The data set is specific to Vesta encounter. The EPG data are contained in a single file, with an entry for every science data record acquired by GRaND at Vesta. Each record has a unique identifier, spacecraft clock ticks, which is used as a serial number to identify data from the same record in other files containing spectra and counting data. The RDR data set includes a time series of corrected gamma ray spectra acquired by GRaND's bismuth-germanate (BGO) scintillator.
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    Additional Information
    Mission Information DAWN MISSION TO VESTA AND CERES
    Data Set Information DAWN-A-GRAND-3-RDR-VESTA-COUNTS-V1.0
    Instrument Host Information DAWN
    Instrument Information GRAND
    Target Information 4 VESTA