PDS_VERSION_ID                = PDS3                                          
/* label standards identifiers PDS Version 3.8 */                             
                                                                              
RECORD_TYPE                   = FIXED_LENGTH                                  
RECORD_BYTES                  = 196                                           
FILE_RECORDS                  = 46                                            
MD5_CHECKSUM                  = "4503fa65c11d800b24cec44557100a97"            
^TABLE                        = "GRD-L1B-090217-090218_110225-DTS-EPM.TAB"    
PRODUCER_FULL_NAME            = "T. H. PRETTYMAN"                             
PRODUCER_INSTITUTION_NAME     = "PLANETARY SCIENCE INSTITUTE"                 
PRODUCT_CREATION_TIME         = 2011-02-25T06:09:06                           
PRODUCT_ID                    = "GRD-L1B-090217-090218_110225-DTS-EPM"        
PRODUCT_TYPE                  = "DATA"                                        
PRODUCT_VERSION_ID            = "1.0"                                         
START_TIME                    = 2009-02-17T22:33:04                           
STOP_TIME                     = 2009-02-18T00:44:19                           
SOFTWARE_NAME                 = "GRD_L1B_PIPELINE"                            
SOFTWARE_VERSION_ID           = "Version 1.0"                                 
MISSION_NAME                  = "DAWN MISSION TO VESTA AND CERES"             
MISSION_ID                    = "DAWN"                                        
INSTRUMENT_HOST_NAME          = "DAWN"                                        
INSTRUMENT_HOST_ID            = "DAWN"                                        
INSTRUMENT_ID                 = "GRAND"                                       
INSTRUMENT_NAME               = "GAMMA RAY AND NEUTRON DETECTOR"              
MISSION_PHASE_NAME            = "MARS GRAVITY ASSIST (MGA)"                   
TARGET_NAME                   = "MARS"                                        
TARGET_TYPE                   = "PLANET"                                      
DATA_SET_ID                   = "DAWN-M-GRAND-3-RDR-MARS-COUNTS-V1.0"         
DATA_SET_NAME = "DAWN GRAND CALIBRATED MARS FLYBY COUNTS V1.0"                
SPICE_FILE_NAME               = ("naif0009.tls",                              
                                 "DAWN_203_SCLKSCET.00014.tsc",               
                                 "dawn_rec_081109-090228_090306_v1.bsp",      
                                 "dawn_sc_090216_090222.bc",                  
                                 "de421.bsp",                                 
                                 "pck00008.tpc",                              
                                 "dawn_grand_v00.ti",                         
                                 "dawn_v08.tf")                               
                                                                              
OBJECT                        = TABLE                                         
 ROWS                         = 46                                            
 ROW_BYTES                    = 196                                           
 INTERCHANGE_FORMAT           = ASCII                                         
 COLUMNS                      = 19                                            
 ^STRUCTURE                   = "GRD_L1B-EPM.FMT"                             
 DESCRIPTION                  = "                                             
     This time series contains GRaND calibrated (level1b) data.  The time     
     series was constructed by averaging corrected counting rates over        
     a moving window using one of two methods: Central Moving Average (CMA)   
     or Decimated Time Series (DTS).  The CMA method provides an result       
     for each science data record by averaging over records on either side    
     of the current point as illustrated here:                                
                                                                              
     Science records       XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX                
                             ...                                              
                              | 1 |                                           
                               | 2 |                                          
                                | 3 |                                         
                                 | 4 |                                        
                                  | 5 |                                       
                                    ....                                      
     where each of the time-ordered science records is indicated by an        
     X and the window boundaries are indicated by the vertical bars.          
     The middle of each time series is labeled with an index (1, 2, ...).     
                                                                              
     The DTS method marches the window through the science data records,      
     resulting in a decimated time series as follows:                         
                                                                              
     Science records       XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX                
                           ...| 1 || 2 || 3 || 4 || 5 |...                    
                                                                              
     The number of science data records averaged for each point in the time   
     series is given by WINDOW_WIDTH, which is an odd integer.  For both      
     methods, all time, ephemeris, and pointing information is determined at  
     the midpoint of the window.                                              
                                                                              
     The time series parameters for this data set are given here:             
                                                                              
     SERIES_TYPE  = 1 Decimated Time Series (DTS)                             
     WINDOW_WIDTH = 5                                                         
     TELREADOUT   = 35                                                        
     TRUE_TIME    = 175                                                       
                                                                              
     This file contains time, pointing, and ephemeris data determined using   
     NAIF/SPICE kernels needed for the analysis of data acquired during       
     Mars Gravity Assist (the target was IAU_MARS).  The data includes        
     the distance and direction to Mars center; the velocity of the spacecraft
     relative to Mars rotated into the instrument coordinate system, which is 
     needed to determine the response of the instrument to low-energy         
     neutrons; the sub-spacecraft longitude, latitude, and altitude; the      
     fractional solid angle subtended by Mars at the spacecraft; and an       
     averaged counting rate, which can be used as a proxy for the galactic    
     cosmic ray flux.                                                         
                                                                              
 "                                                                            
END_OBJECT                    = TABLE                                         
END