MER (Spirit and Opportunity) APXS derived oxide Data Set Description

Extracted from PDS3 Data Set Catalog File.

Data Set Terse Description
==========================

Mars Exploration Rover Alpha Particle X-ray Spectrometer Oxide Abundance Data.
                                 
  Data Set Overview
  =================

    This data set contains oxide abundance data derived from X-ray analyses
    of the MER APXS (Alpha Particle X-Ray Spectrometer) data products. A
    description of the data analysis procedure and interpretation of the
    results can be found in Gellert et al. (2006) and in Ming et al. (2008).
  
  Processing
  ==========
 
    The APXS oxide abundance data products were generated by the MER APXS
    Team. A nonlinear least squares algorithm was used to derive peak areas
    of characteristic element lines from APXS summed spectra. Peak areas were
    converted into element or oxide concentration using instrument
    calibration tables. Details of data processing and calibration are given
    in Gellert et al. (2006).
  
  Data
  ====

    Each APXS oxide abundance data file is a comma-delimited table.
    
    The data consist of one file for each rover. 


References
==========

    Gellert, R., Rieder, R., Brückner, J., Clark, B. C., Dreibus, G.,
    Klingelhöfer, G., et al. (2006). Alpha particle X-ray spectrometer (APXS):
    Results from Gusev crater and calibration report. Journal of Geophysical
    Research, 111, E02S05. https://doi.org/10.1029/2005JE002555
    
    Ming, D. W., R. Gellert, R. V. Morris, R. E. Arvidson, J. Bruckner, B. C.
    Clark III, et al. (2008), Geochemical Properties of Rocks and Soils in Gusev
    crater, Mars: Results of the Alpha Particle X-ray Spectrometer from
    Cumberland Ridge to Home Plate, J. Geophys. Res., 113, E12S39,
    doi:10.1029/2008JE003195