PDS_VERSION_ID      = PDS3                                                    
RECORD_TYPE         = "STREAM"                                                
                                                                              
OBJECT              = TEXT                                                    
   PUBLICATION_DATE = 2014-01-31                                              
   NOTE             = "Description of the contents of the EXTRAS directory"   
END_OBJECT          = TEXT                                                    
                                                                              
END                                                                           
                                                                              
                                                                              
EXTRAS Directory Contents                                                     
                                                                              
                                                                              
The EXTRAS directory provides a browse facility implemented as a website      
for viewing a thumbnail and a full-frame JPEG image for each RADREV data      
product in this dataset.  (The JPEGs used here were generated from RAW        
data products because the actual spectra are more visible.)  The BROWSE       
subdirectory contains daily folders that include the JPEGs and an             
INDEX.HTML file to facilitate displaying the JPEGs along with direct links    
to the associated RADREV FITS data file and its PDS label.                    
                                                                              
The thumbnail files are the full-frame JPEG images resized to a smaller,      
consistent width and height of 80x40 pixels.  The brightness of some JPEGs    
may differ from the corresponding FITS images because the same stretch was    
always used.                                                                  
                                                                              
Although calibrated RAD (radiance units, cleaned) images are included in      
this dataset, a browse facility was not generated because the RAD version     
of JPEG images is very similar in appearance to those in this browse          
facility.