PDS_VERSION_ID                   = PDS3                                       
                                                                              
                              
  DATA_SET_COLLECTION_MEMBER_FLG = "N"                                        
  DATA_OBJECT_TYPE               = TABLE                                      
  START_TIME                     = 1997-08-27T14:58:17.588                    
  STOP_TIME                      = 1998-01-22T23:58:24.871                    
  DATA_SET_RELEASE_DATE          = 2002-07-04                                 
  PRODUCER_FULL_NAME             = "DOUGLAS B. HOLLAND"                       
  DETAILED_CATALOG_FLAG          = "N"                                        
  DATA_SET_DESC                  = "                                          
                            

In Feb. 2012 this data set was reorganized from the physical volume format    
into a more contemporary single logical volume, so that X-ray and Gamma-ray   
data are now in separate volumes.  Index files have been edited to reflect    
the new volume IDs. The description below is from the AAREADME.TXT file of    
one of the original volumes.  The new structure contains all the listed       
directories under a single root.                                              
                                                                              
-A.C.Raugh 2012-02-24                                                         
_______________________________________________________________               
                                                                              
                                                                              
NEAR Mission X-RAY/GAMMA-RAY SPECTROGRAPH Data Set                            
========================================================================      
                                                                          
   This document provides an overview of this volume of this Near Earth       
   Asteroid Rendezvous (NEAR) Uncalibrated Data Set, including a summary      
   of the volume contents. 
                                                  
    Data Set Overview                                                         
    =================                                                         
    The NEAR Science Data Center (SDC) archives NEAR uncalibrated science      
    data to the Small Bodies Node (SBN) of the  Planetary Data System (PDS),   
    as specified in the NEAR Project Archive Generation, Validation and        
    Transfer Plan (February 1998).         

    This data set contains Gamma Ray Spectrometer (GRS) observations        
    made during the NEAR mission. The individual observations are combined
    into a single file per day for each sensor.                                                        
                                                                              
                                                                              
    Parameters                                                                
    ==========                                                                
      The data are presented as FITS binary tables (using the BINTAB          
      extension) with detached PDS labels. The parameters listed in           
      each table vary with observing sensor. The detailed descriptions        
      of the various parameters included in the table are given in a          
      separate documentation file, one for each sensor and mission phase:                       
                                                                              
         Document/data_raw_documents/definitions_documents/                                                                                                
                                                                              
                                                                              
    Data                                                                      
    ====                                                                      
      The data are in the form of FITS files with attached FITS headers       
      and detached PDS labels.  The data subdirectory has subdirectories      
      for each instrument sensor.  Files contain all data for one day.        
                                                                              
    Ancillary Data                                                            
    ==============                                                            
      Geometry data (pointing and attitude information) are provided          
      for the entire NEAR mission as a separate data set.                     
                                                                              
                                                                              
    Media/Format                                                              
    ============                                                              
      This data set is released as a CDROM set.         


    Mission Phase Parameters (Planned Values; Feb. 2000)                          
    ====================================================                          
                                                                              
    1) Phase Name                                                                 
    2) Segment(Phase Abbrv)                                                       
    3) Start Year, DayOf Year                                                     
    4) End Year, DayOf Year,                                                      
    5) Length(days)                                                               
    -------------------------------------------------------                       
                                                                              
    CRUISE1                CRU1      1996051      1997175    491                  
    MATHILDE               MATH      1997176      1997178      3                  
    CRUISE2                CRU2      1997179      1998022    209                  
    EARTH                  ERTH      1998023      1998026      4                   
    CRUISE3                CRU3      1998027      1998356    330                  
    EROS/FLY/BY            ERFB      1998357      1998357      1                  
    CRUISE4                CRU4      1998358      2000010    383                  
    EROS/ORBIT             EROS      2000011      2001043    399                  
    EROS/SURFACE           ERSF      2001044      2001059     16                  
                                                                              
    -------------------------------------------------------                                             
                                                                              
                                                                              
    Processing History                                                        
    ==================                                                        
      The processing history includes no background, noise, geometry or       
      other corrections."                                                     
                                                                              
    CONFIDENCE_LEVEL_NOTE          = "                                        
                                                                              
    Data Quality Flag                                                         
    =================                                                         
      Each observation includes a quality flag in the column named 'DQI'.     
      This flag was extracted from the FITS keyword NEAR-008 of the           
      original data label. The fields of this keyword are defined             
      below.  Data quality defects flag is raised when there is missing       
      data other fields informational and not quality related. The eight      
      characters of this field are described below.                           
                                                                              
      Definition - Data Quality Index                                         
                c0 = Data Quality Flag (0=good,1=flagged for quality          
                     defects)                                                 
                c1 = Instrument number for FC, CTP and AIU (1 or 2)           
                c2 - c6 = Processing Flags not quality related                
                c7 = CCDS Source (0=VC0, 1=VC1, 2=VC2, 3=VC3)                 
                                                                              
    Review                                                                    
    ======                                                                    
      This data set underwent external peer review within PDS in June,        
      2000."                                                                  
                                                                              
  END_OBJECT                       = DATA_SET_INFORMATION                     
                                                                              
  OBJECT                           = DATA_SET_TARGET                          
    TARGET_NAME                    = "SOLAR SYSTEM"                           
  END_OBJECT                       = DATA_SET_TARGET                          
                                                                              
  OBJECT                           = DATA_SET_HOST                            
    INSTRUMENT_HOST_ID             = "NEAR"                                   
    INSTRUMENT_ID                  = "GRS"                                    
  END_OBJECT                       = DATA_SET_HOST                            
                                                                              
  OBJECT                           = DATA_SET_REFERENCE_INFORMATION           
    REFERENCE_KEY_ID               = "CHENGETAL1998"                          
  END_OBJECT                       = DATA_SET_REFERENCE_INFORMATION           
                                                                              
END_OBJECT                         = DATA_SET                                 
END