MER2 (Spirit) MB Partially Processed Summed Spectra (RDR) Data Set Description Extracted from PDS3 Data Set Catalog File. Data Set Terse Description ========================== Mars Exploration Rover 2 Moessbauer partially processed summed spectra (RDR) dataset. Data Set Overview ================= These MB data products are ASCII formatted tables. There are several types of summed spectra RDR data products from intermediate data reduction to more highly derived ones. MB summed spectra products are expressed as summed spectra in counts as a function of channel number. Mineralogical interpretations by the Moessbauer Team of the Moessbauer data have been published in Morris et al. (2004) and in Klingelhoefer et al. (2004). Processing ========== The MB RDR data products are produced by MB instrument team members from the Johannes Gutenberg University (Mainz, Germany) using software tools developed by the MB team. The RDR data products - summed spectra in counts as a function of channel number - is generated after each sol in which MB data were acquired. This step comprises an extraction of the MB spectra from the MB raw data products and subsequent conversion into ASCII formatted tables. Data ==== Each MB summed spectra data file is a table. The number of columns and rows in the table is dependent on the type of product. Columns are variable length and are delimited with commas. Each row is terminated with a carriage return and line feed character. There are six product types in this dataset as described below. The first product type (MGC) is a table of 14 keV (gamma-ray) MB spectra as a function of channel number. The second product type (MXC) is a table of 6 keV (X-ray) MB spectra as a function of channel number. The third product type (RSC) is a table of 14 keV reference spectra as a function of channel number. The fourth product type (DSC) is a table of differential signal as a function of channel number. The fifth product type (ESC) is a table of energy spectra as a function of channel number. The sixth product type (ESE) is a table of energy spectra in counts as a function of energy. Velocity calibration files for surface and CCT measurements are provided in the CALIB directory of the archive. These files consist of thirteen columns: one per each temperature window. The temperature windows correspond to the temperature windows in the MB spectra products (MGC and MXC). The last temperature window in each velocity calibration file contains a room temperature extrapolation of the velocity scale. References ========== Klingelhöfer, G., et al. (2003) Athena MIMOS II Mössbauer spectrometer investigation, J. Geophys. Res., 108(E12), 8067, doi:10.1029/2003JE002138. Klingelhoefer, G., et al. (2004) Jarosite and hematite at Meridiani Planum from Opportunity's Moessbauer Spectrometer, Science, 306, 1740- 1745. Morris, R.V., et al. (2004) Mineralogy at Gusev Crater from the Moessbauer Spectrometer on the Spirit Rover, Science, 305, 833-836.