PDS_VERSION_ID                   = PDS3                                       
RECORD_TYPE                      = STREAM                                     
DATA_SET_ID                      = "RO-X-HK-3-OCMRCS-V1.0"                    
OBJECT                           = TEXT                                       
  PUBLICATION_DATE               = 2019-11-30                                 
  NOTE                           = "Description of the BROWSE directory       
                                    contents for Rosetta Housekeeping data    
                                    deliveries"                               
END_OBJECT                       = TEXT                                       
END                                                                           
                                                                              
                                                                              
BROWSE Directory Contents                                                     
                                                                              
The BROWSE directory contains PNG thumbnail files for browsing the data       
provided in the DATA directory.  Each file comes with a detached PDS label.   
Note that there is *not* a one to one correspondence between the DATA         
products and the BROWSE products.  Instead, BROWSE products are provided      
either as quarterly or monthly overviews.                                     
                                                                              
BROWSE products are also only provided for a selected set of parameters       
in the data sets, carefully chosen as being of most interest to have as       
thumbnails to help browse through the data sets and select data and periods   
of interest.                                                                  
                                                                              
For the OCM/RCS dataset, Browse products have been produced solely for the    
comet phase of the mission. They begin when the satellite comes out of        
hibernation in Jan 2014 and continue on a 3 monthly (QX - see below)          
basis until 30th Sept 2016.                                                   
                                                                              
For further details of the BROWSE product implementation, please see the      
USER_GUIDE.PDF and the EAICD_HK.PDF documents in the DOCUMENT directory.      
                                                                              
                                                                              
For further details of the BROWSE product implementation, please see the      
USER_GUIDE.PDF and the EAICD_HK.PDF documents in the DOCUMENT directory.      
                                                                              
The BROWSE file naming convention is defined to match with the                
<param description> part of the directory structure defined in the /DATA      
directories, i.e.                                                             
                                                                              
<parameter_id>_<YYYY_MM>.<EXT>                                                
or                                                                            
<parameter_id>_<YYYY_QX>.<EXT>                                                
                                                                              
where:                                                                        
<parameter_id>  is the housekeeping parameter presented                       
<YYYY_MM>       is the year an month shown in the thumbnail                   
<YYY_QX>        is the year and quarter shown in the thumbnail                
<EXT>           is either PNG for the browse file or LBL for the              
                corresponding PDS label file                                  
                                                                              
Note that for this dataset, many of the parameter_id values could not be      
used in full for the filenaming, as this would then break the maximum         
length of a filename in the PDS Standards.  As a result, the follwoing        
changes were necessary to the parameter_id used in the DATA subdirectory      
structure when applied to the BROWSE filenames:                               
For the OCMRCS data set, several of the parameter_ids                         
were too long and produced invalid filenames.  The                            
following changes were made to the filenames and all                          
relevant PRODUCT_ID, FILE_NAME and pointer values in                          
the LBL files, and the BROWINFO.TXT updated to inform                         
the user accordingly:                                                         
                                                                              
<parameter_id in DATA>                     Filename in BROWSE                 
----------------------                     ------------------                 
OCM_EST_DIST_TORQUES_YYYY_QX.*         --> OCM_EST_DIST_TORQUE_YYYY_QX.*      
RCS_CUM_FUEL_THRUST_CONS_YYYY_QX.*     --> RCS_CUM_FUEL_THRUST_YYYY_QX.*      
RCS_CUM_THRUST_CONS_1_TO_8_YYYY_QX.*   --> RCS_CUM_THRUST_1_8_YYYY_QX.*       
RCS_CUM_THRUST_CONS_9_TO_12_YYYY_QX.*  --> RCS_CUM_THRUST_9_12_YYYY_QX.*      
RCS_THRUST_ON_CYCLES_1_TO_8_YYYY_QX.*  --> RCS_THRUST_ON_1_8_YYYY_QX.*        
RCS_THRUST_ON_CYCLES_9_TO_12_YYYY_QX.* --> RCS_THRUST_ON_9_12_YYYY_QX.*