PDS_VERSION_ID                = PDS3                                          
RECORD_TYPE                   = STREAM                                        
LABEL_REVISION_NOTE           = "                                             
2016-06-15 SwRI:BTCarcich                                                     
  New file                                                                    
"                                                                             
                                                                              
OBJECT                        = TEXT                                          
  PUBLICATION_DATE            = 2016-06-15                                    
  NOTE                        = "The NH ALICE Pluto encounter                 
                                 Raw VERSION 2.0                              
                                 Data Archive                                 
                                                                              
                                 Processing levels description                
                                                                              
                                "                                             
END_OBJECT                    = TEXT                                          
END                                                                           
                                                                              
                                                                              
Processing Level                                                              
================                                                              
                                                                              
                                                                              
   This data set contains Raw data, one of the two                            
   levels (Raw and Calibrated) of pipeline-processed data provided by the NH  
   project to PDS.  Refer to DOCUMENT/CODMAC_LEVEL_DEFINITIONS.PDF for a      
complete                                                                      
   description.  A brief discussion of processing levels follows:             
                                                                              
     Processing  Description                                                  
     Level       => CODMAC Level                                              
     ==========  ===============                                              
                                                                              
     Raw         Instrument telemetry formatted for scientific use            
                 => CODMAC Level 2                                            
                                                                              
     Calibrated  Raw data converted to scientific units                       
                 => CODMAC Level 3                                            
                                                                              
   N.B.:  Raw and Calibrated data are sometimes referred to as EDR            
          (Engineering Data Records) and RDR (Reduced Data Records),          
          respectively.                                                       
                                                                              
   Raw data are in instrument units, typically binary integers referred to    
   as COUNTs or DATA NUMBER (DN).  The raw data are stored in data files      
   with ancillary information such as observation time timestamps and         
   observational geometry.                                                    
                                                                              
   Calibrated data are in scientific or engineering units, such as            
   radiance (W/(m**2 um sr)) or impact particle mass (GRAMs).  The            
   conversion to calibrated data from raw data was performed according        
   to an instrument performance model, which was developed from               
   scientific analysis of ground and in-flight calibrations, and which        
   is documented in files in this data set under the DOCUMENT/ and            
   CALIB/ subdirectories.  Refer to DOCUMENT/DOCINFO.TXT and                  
   CALIB/CALINFO.TXT for pointers to more information.                        
                                                                              
   Most science-oriented users will use the calibrated data, as those         
   data have the observations converted to physical units, and                
   instrument characteristics have been removed such as:                      
                                                                              
   - non-linearity of instrument counts w.r.t. measured quantity              
   - inversion of instrument counts w.r.t. measured quantity                  
   - flat field (pixel to pixel) response                                     
                                                                              
   Possible reasons for using the raw data are the following:                 
                                                                              
   - investigation of the data calibration process                            
   - improvement of the data calibration process due to new data or           
     new approaches or new algorithms becoming available                      
   - simplicity or limitations of working with integer data                   
     - e.g. writing integer values to common image formats