The MESSENGER GRS calibrated/reduced observations consist of science and instrument data collected by the GRS sensor.

 
Citation E. A. Rhodes (APL), MESSENGER E/V/H GRNS 3 GAMMA RAY SPECTROMETER CALIBDATA V1.0, NASA Planetary Data System, 2010.
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Data Set Abstract Abstract ======== This data set consists of the MESSENGER GRS calibrated observations (CDRs) and the reduced data product (RDR). The GRS experiment is a gamma ray spectrometer designed to observe spectra of gamma rays emitted from Mercury's surface in the energy range from 0.1 to 10 MeV. There are seven basic GRS CDR data products: the Ge raw spectra data (GRS_CAL_RAW), the anti-coincidence spectra data (GRS_CAL_AC), the shield spectra data (GRS_CAL_SH, GRS_CAL_SH2, GRS_CAL_SH3), the shield count rate (GRS_CAL_SCR) and the engineering data (GRS_ENG). There is one GRS RDR product (GRS_RDR_SUM), a spectral sum of the GRS_CAL_RAW and GRS_CAL_AC spectra.
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    Additional Information
    Mission Information MESSENGER
    Data Set Information MESS-E/V/H-GRNS-3-GRS-CDR-V1.0
    Instrument Host Information MESS
    Instrument Information GRS
    Target Information CALIBRATION
    EARTH
    MERCURY
    VENUS