PDS_VERSION_ID           = PDS3                                               
                                                                              
RECORD_TYPE              = STREAM                                             
INSTRUMENT_HOST_NAME     = "ROSETTA-ORBITER"                                  
                                                                              
OBJECT                   = TEXT                                               
 PUBLICATION_DATE         = 2020-01-07                                        
 INTERCHANGE_FORMAT       = ASCII                                             
 NOTE                     = "ASCII description of the NavCam Archive"         
END_OBJECT               = TEXT                                               
END                                                                           
                                                                              
==============================================================================
Overview:                                                                     
==============================================================================
                                                                              
This data set contains instrument radiometrically calibrated data from the    
Navigation Camera (NavCam) onboard the ROSETTA spacecraft from the            
PRELANDING COMMISSIONING Phase.                                               
The time interval starts on 23 Feb. 2014, 08:10:01 and ends on                
30 Apr. 2014, 03:32:08.                                                       
Onboard the Rosetta Orbiter there are two identical NavCams, providing        
complete redundancy in the event of single point failure. Each NavCam unit    
consists of a camera baffle, camera optical head and an electronics unit and  
is capable of providing multiple operating modes to fully satisfy the         
requirements of the Rosetta mission with respect to the autonomous tracking   
and attitude determination.                                                   
                                                                              
==============================================================================
PRELANDING COMMISSIONING NavCam Data Archive:                                 
==============================================================================
                                                                              
a) Data                                                                       
=========================                                                     
                                                                              
CODMAC Level / Type             Data Type   Data Content                      
                                                                              
           3 / CALIBRATED Data  Image       RADIOMETRICALLY CALIBRATED Data   
                                                                              
The data can be found in the following directory:                             
   */DATA/                                                                    
The data products are in the form of RADIOMETRICALLY CALIBRATED images each   
with a detached label.                                                        
                                                                              
b) Supporting Files                                                           
=========================                                                     
                                                                              
Supporting files for the Archive end user include PDS: documentation,         
descriptions and searchable indices.  These are organised into four sub-      
directories immediately below the root directory:                             
     - CALIB                                                                  
     - CATALOG                                                                
     - DOCUMENT                                                               
     - INDEX                                                                  
                                                                              
==============================================================================
Structure of the Volume:                                                      
==============================================================================
This is the general structure of Calibrated (Level 3) NavCam datasets.        
The subdirectory CAM1 indicates that all images in the dataset were taken with
CAM1 camera and not with CAM2 camera. CAM1 was the nominal camera and CAM2 was
a backup that was only used for checkout and has not been characterized for   
calibration purposes. This is the reason why Level 3 datasets do not contain  
CAM2 products.                                                                
                                                                              
Root Directory                                                                
   |                                                                          
   |--- AAREADME.TXT   (PDS required introduction to the data set )           
   |                                                                          
   |../BROWSE/                                                                
   |     |                                                                    
   |     |--- BROWINFO.TXT (List of the BROWSE folder contents)               
   |     |                                                                    
   |     |../CAM1/                                                            
   |     |    |                                                               
   |     =    |--- *.PNG Files  (Browse images of each data product:          
   |          |                  PNG format)                                  
   |          |--- *.LBL Files  (Detached label file for each browse product) 
   |          =                                                               
   |                                                                          
   |../CALIB                                                                  
   |     |--- BIAS_HIGH_20170220.FIT (Bias fields for high gain)              
   |     |--- BIAS_HIGH_20170220.LBL (Label for bias fields for high gain)    
   |     |--- BIAS_LOW_20170220.FIT  (Bias fields for low gain)               
   |     |--- BIAS_LOW_20170220.LBL  (Label for Bias fields for low gain)     
   |     |--- CALINFO.TXT            (List of the CALIB folder contents)      
   |     |--- VIGNETTING_ATT_20170417.FIT (Vignetting field for ATT)          
   |     |--- VIGNETTING_ATT_20170417.LBL (Label)                             
   |     |--- VIGNETTING_NATT_20170417.FIT (Vignetting field for NATT)        
   |     |--- VIGNETTING_NATT_20170417.LBL (Label)                            
   |                                                                          
   |../CATALOG/                                                               
   |     |                                                                    
   |     |--- CATINFO.TXT  (List of the CATALOG folder contents)              
   |     |--- *.CAT Files                                                     
   |     =                                                                    
   |                                                                          
   |../DATA/                                                                  
   |     |                                                                    
   |     |../CAM1/                                                            
   |     |    |                                                               
   |     =    |--- *.IMG Files  (Data products in PDS3 IMAGE format)          
   |          |--- *.LBL Files  (Detached label files for each data product)  
   |          =                                                               
   |                                                                          
   |../DOCUMENT/                                                              
   |     |                                                                    
   |     |--- DOCINFO.TXT  (List of the DOCUMENT folder contents)             
   |     |--- RO-SGS-IF-0001.TXT Files  (ASCII version of EAICD)              
   |     |--- RO-SGS-IF-0001.PDF Files  (PDF version of EAICD)                
   |     |--- RO-SGS-IF-0001.LBL Files  (EAICD label)                         
   |                                                                          
   |                                                                          
   |../EXTRAS                                                                 
   |     |..EXTRINFO.TXT                                                      
   |     |../CAM1/                                                            
   |     |    |                                                               
   |     =    |---*F.FIT Files  (FITS format files)                           
   |          |-- *F.LBL Files  (Label of the FIT files)                      
   |          =                                                               
   |                                                                          
   |../INDEX                                                                  
   |     |                                                                    
   |     |--- INDXINFO.TXT (List of the INDEX folder contents)                
   |     |--- INDEX.LBL    (Detached label file for INDEX.TAB)                
   |     |--- INDEX.TAB    (Index of the data set in tabular format)          
   |     |--- BROWSE_INDEX.TAB (Index of the browse products)                 
   |     |--- BROWSE_INDEX.LBL (Detached label for the browse index)          
   |     |--- GEO_NAVCAM_*.TAB (Geometry Index)                               
   |     |--- GEO_NAVCAM_*.LBL (Geometry Index Label)                         
   |     |--- NAVCAM_*INDEX.TAB (Additional Index)                            
   |     |--- NAVCAM_*INDEX.LBL (Additional Index Label)                      
   |                                                                          
   =                                                                          
                                                                              
The ROSETTA project decided that the data would be archived in the PDS Version
3 format and, consequently, the layout of this volume and all associated label
files for each file conform to the PDS / PSA guidelines.                      
                                                                              
==============================================================================
Contact Information:                                                          
==============================================================================
                                                                              
Data generated by:                                                            
                                                                              
Bernhard Geiger                                                               
ESAC                                                                          
Camino Bajo del Castillo s/n                                                  
28692 Villanueva de la Canada, Madrid                                         
Spain                                                                         
                                                                              
bgeiger@sciops.esa.int                                                        
                                                                              
==============================================================================
