Data Set Overview
    =================
 
    This data set contains raw flash-mode spectra from Near
    Infrared Spectrometer #1 on the LCROSS spacecraft.
    During the final moments of the LCROSS mission, NSP2
    looked toward the sun to capture absorption spectra as
    the spacecraft passed through the ejecta and vapor cloud
    left by the centaur impact.
 
    Unlike the other spectra and images, flash mode data is
    in table files containing multiple spectra taken at 72
    Hz (in this dataset).  There is one of these table files
    per payload data collection period where NSP2 flash mode
    was used.  This dataset also contains table files
    holding housekeeping data.
 
    Related Data Sets
    =================
 
    This dataset contains uncalibrated spectra.  The
    NSP2_FL_CAL dataset contains the corresponding
    calibrated spectra.  It's described in
    NSP2_FL_CAL_DS.CAT in this directory.
 
    NSP2_RAW_DS.CAT and NSP2_CAL_DS.CAT describe data taken
    from this spectrometer in its high-resolution 'hadamard'
    mode.
 
    Parameters
    ==========
 
       Science
       -------
 
       The data collection period is 72 Hz.
 
       Housekeeping
       ------------
 
       Instrument temperature at the data collection time is
       reported in the label file under:
       INSTRUMENT_TEMPERATURE and
       INSTRUMENT_TEMPERATURE_COUNT in degrees Centigrade
       and raw counts, respectively.  This is a single
       telemetry point most representative of the
       instrument chassis temperature.
 
    Processing
    ==========
 
    Each near-infrared spectra was digitally transmitted
    from the spectrometer to the spacecraft in its raw
    format, inserted into a packet uncompressed and
    downlinked in telemetry.  On the ground, the spectra
    were extracted from telemetry, and they were converted
    to CSV format.  For each data collection period, the
    LCROSS Make Archive program read these files and wrote
    them as a PDS-formatted table (.TAB) and label (.LBL)
    file.
 
    Data
    ====
 
    The files in this dataset are PDS-formatted, ascii,
    tables with detached label files.
 
    Coordinate System
    =================
 
    TBD
 
    Software
    ========
 
    The GSEOS Version used to generate these spectra is GSEOS
    5.2.407 (Feb 25, 2008), Python 2.2.3 (#37, Nov 28, 2003,
    04:20:20), Project Version 6.1.064.
 
    The LCROSS.py Python script used with GSEOS is Version
    Jun 11, 2008.
 
    The LCROSS Report Generator used on GSEOS created
    CCSDS.dat files is version 114.
 
    The version of Satellite Toolkit used to prepare geometric
    information for the labels is 8.1.3.
 
    The LCROSS Make Archive program used to assemble the
    PDS-formatted submission is dated 03/14/2010.

Confidence Level Overview
    =========================
 
    The confidence level is unspecified.
 
    Review
    ======
 
    This LCROSS data set was reviewed internally by the
    LCROSS science team before delivery to PDS.  This data
    set has passed a PDS peer review.
 
    Data Coverage and Quality
    =========================
 
    This data path from spectrometer to PDS involved no
    lossy compression and was fully error corrected.  No
    NSP2 packets were lost in downlink.  No NSP2 spectra
    were saturated.
 
    Limitations
    ===========
 
    TBD
 
    Data Compression
    ===============
 
    No data compression was used in the datapath from the
    detector to the formatted files ready for submission to
    the PDS.