PDS_VERSION_ID                   = PDS3                                       
                                                                              
RECORD_TYPE                      = STREAM                                     
RELEASE_ID                       = 0001                                       
REVISION_ID                      = 0000                                       
                                                                              
OBJECT                           = TEXT                                       
  PUBLICATION_DATE               = 2008-09-01                                 
  NOTE                           = "Description of the CALIB directory        
                                    contents for the NPD instrument           
                                    data set."                                
END_OBJECT                       = TEXT                                       
END                                                                           
                                                                              
                                                                              
                                                                              
                                                                              
Note:                                                                         
                                                                              
It is noted that the NPD calibrations could not be fully determined. The      
automatic conversion of count rates to physical unit (ENA diff. fluxes) is    
not possible because of many reasons but mainly due to counts caused by       
photons at certain viewing geometries. IRF decided to simply archive raw      
counts but provided calibrations reports as document. The latest NPD reports  
are contained within the PhD thesis of Alexander Grigoriev (chapter 5 of this 
document, available within the DOCUMENT directory of the NPD data set).       
For this reason, no calibration tables are planned to be delivered within     
the CALIB directory of the NPD data set.