PDS_VERSION_ID        = PDS3                                                  
RECORD_TYPE           = STREAM                                                
OBJECT                = TEXT                                                  
  INTERCHANGE_FORMAT  = ASCII                                                 
  PUBLICATION_DATE    = 2001-09-01                                            
  NOTE                = "This document gives a list of definitions            
and acronyms used by XGRS personnel."                                         
END_OBJECT            = TEXT                                                  
                                                                              
ANTICO          Gamma-ray Spectrometer: Anti-Coincidence                      
APL             Applied Physics Laboratory                                    
AVG             Average                                                       
BGO             Bismuth Germanate                                             
BS              Boresight                                                     
CH              Channel                                                       
CMD             Command                                                       
CTP             Command and Telemetry Processing                              
DER             Derived Engineering                                           
DPU             Data Processing Unit                                          
DQI             Data Quality Index                                            
DSN             Deep Space Network                                            
ENG             Engineering                                                   
ESC             Escape                                                        
ET              Ephemeris Time                                                
FCT             Function                                                      
FLG             Flag                                                          
FOV             Field of View                                                 
FTP             File Transfer Protocol                                        
GAS PC          Gas Proportional Counter Detector                             
GCR             Galactic Cosmic Rays                                          
GRS             Gamma Ray Spectrometer                                        
GSFC            Goddard Space Flight Center                                   
HDF             Hierarchical Data Format                                      
HK              Space Craft, Instrument House Keeping Parameters              
HVCE            High Voltage Control Electronics                              
HVPS            High Voltage Power Supply                                     
I*4             Signed Integer 4 byte parameter = 32 bits                     
JPL             Jet Propulsion Laboratory                                     
keV             Kilo Electron Volts                                           
LLD             Lower Level Discriminator                                     
LT              Light Time                                                    
MET             Mission Elapsed Time                                          
MeV             Mega Electron Volts                                           
NAI             Sodium Iodide                                                 
NAIF            Nasa Ancillary Information Facility                           
NASA            National Aeronautics and Space Administration                 
NC              Neutron Capture Radiation                                     
NEAR            Near Earth Asteriod Rendezvous                                
NR              Natural Radioactivity Radiation                               
POS             Position                                                      
QueryID         Query IDentifier file served by                               
                    Relational Database Management System                     
R*4             Floating Point 4 byte Parameter = 32 bits                     
RDBMS           Relational Database Management System                         
RT              Rise Time                                                     
SC              Space Craft                                                   
SCI             Science                                                       
SDC             Applied Physics Laboratory, Science Data Center               
SPICE           Spacecraft - Planetary - Instrument -                         
                    C-matrix - Ephemerides                                    
TBD             To Be Decided                                                 
TEC             Thermo-Electric Cooler                                        
UA              University of Arizona                                         
UA-LPL          University of Arizona -                                       
                    Lunar and Planetary Laboratory                            
UA-RDBMS        University of Arizona -                                       
                    Relational Database Management System                     
WWW             World Wide Web                                                
XDR             eXternal Data Representation                                  
XGRS            X-ray and Gamma-ray Spectrometer                              
XRS             X-ray Spectrometer                                            
                                                                              
Level-2 parameter specific definitions and derivations are                    
provided in the:                                                              
                                                                              
"NEAR GRS Level 2 Requirements Specification" in the GRS                      
DOCUMENT section