Index of /holdings/ro-c-virtis-2-ext1-mtp027-v1.0

Icon  Name                    Last modified      Size  Description
[DIR] Parent Directory - [DIR] calib/ 09-Aug-2017 12:45 - [DIR] catalog/ 09-Aug-2017 12:45 - [DIR] data/ 09-Aug-2017 12:45 - [DIR] document/ 09-Aug-2017 12:45 - [DIR] DOWNLOAD/ 09-Aug-2017 16:03 - [DIR] extras/ 09-Aug-2017 12:45 - [DIR] index/ 09-Aug-2017 15:39 - [TXT] aareadme.txt 06-Jul-2017 06:30 25K [TXT] dataset.html 12-Dec-2017 13:14 3.6K [TXT] errata.txt 06-Jul-2017 06:30 5.3K [   ] voldesc.cat 06-Jul-2017 06:30 3.3K [PDS catalog file]
PDS_VERSION_ID                  = PDS3                                        
RECORD_TYPE                     = STREAM                                      
                                                                              
DATA_SET_ID                     = "RO-C-VIRTIS-2-EXT1-MTP027-V1.0"                   
                                                                              
OBJECT                          = TEXT                                        
  PUBLICATION_DATE              = 2017-07-06                                  
  NOTE                          = "General overview of the ROSETTA VIRTIS     
                                   EXT1-MTP027 data set"                             
END_OBJECT                      = TEXT                                        
END                                                                           
                                                                              
                                                                              
                                                                              
                    VIRTIS STANDARD DATA ARCHIVE                              
                                                                              
                                                                              
1.  Overview                                                                  
                                                                              
This volume contains VIRTIS Standard Data Products from observations          
acquired by the Visual Infrared Thermal Imaging Spectrometer (VIRTIS)         
on Rosetta during the Mars Swing by phase of the mission.                     
More details can be found in DATASET.CAT, TARGET.CAT.                         
The VIRTIS (Visible Infra Red Thermal Imaging Spectrometer) instrument        
combines a double capability: (1) high-resolution visible and infrared        
imaging in the 0.25-5 micron range at moderate spectral resolution            
(VIRTIS-M channel) and (2) high-resolution spectroscopy in the 2-5 micron     
range (VIRTIS-H channel). The two channels will observe the same comet        
areas in combined modes to take full advantage of their                       
complementarities.                                                            
VIRTIS-M (named -M in the following) is characterized by a single optical     
head consisting of a Shafer telescope combined with an Offner imaging         
spectrometer and by two two-dimensional FPAs: the VIS (0.25-1 micron)         
and IR (1-5 micron). VIRTIS-H (-H) is a high-resolution infrared              
cross-dispersed spectrometer using a prism and a grating. The 2-5 micron      
spectrum is dispersed in 8 overlapping orders on a focal plane detector 
array.            
                                                                              
There is only one type of product for each channel, raw records (EDR),        
stored as multi-spectral data QUBES with attached labels. Measurements        
are provided as DN per spectral channel in the Qube objects, with             
housekeeping parameters in the sideplanes. Data from the three focal          
planes are stored in separate files. The logical object Qube is composed      
of a data area and an attached label. The data area is composed of a          
3-dimension matrix containing science measurements (the core) and a           
sideplane containing the housekeepings.                                       
Calibration files and all the relevant information on the calibration         
process is also provided in the data set.                                     
                                                                              
The VIRTIS Data directory is split into three subdirectories, one for         
each focal plane:                                                             
                                                                              
/data/VIRTIS_M_VIS: contains VIRTIS-M VIS channel cubes                       
/data/VIRTIS_M_IR: contains VIRTIS-M IR channel cubes                         
/data/VIRTIS_H: contains VIRTIS-H channel cubes                               
                                                                              
                                                                              
Data products archived in this volume are copies of files maintained          
and released by the VIRTIS team. Supporting documentation and labels          
conform to the Planetary Data System (PDS) Standards Reference, Version       
3.6, Jet Propulsion Laboratory (JPL) document JPL D-7669 (8/03/2003)          
and the Planetary Science Data Dictionary, JPL document JPL D-7116,           
(7/27/2001).                                                                  
                                                                              
                                                                              
                                                                              
2.  File Formats                                                              
                                                                              
This section provides a brief description of the files and data               
objects available on the VIRTIS archive volumes: text files, PDF              
files, and PDS objects such as LABELs, QUBEs,and TABLEs.  A complete          
description of each file format is available in the DOCUMENT/RO_VIRTIS_EAICD  
on each archive volume.                                                       
                                                                              
All text and detached PDS label files are stream format files, with a         
carriage return (ASCII 13) and a line feed character (ASCII 10) at the        
end of the record.  This allows the files to be read by MS-DOS/Windows,       
Unix, and VMS operating systems.                                              
                                                                              
Documents that contain formatting and figures that cannot be rendered         
as ASCII text are provided as PDF files. The PDF (Portable Document           
Format) file is a proprietary format of Adobe Systems Incorporated  that     
can be viewed using the free Acrobat Reader software.                         
                                                                              
A PDS label, whether embedded or detached from its associated file,           
provides descriptive information about the associated file. All PDS           
labels in the VIRTIS Standard Data Archive conform to PDS standards           
[Planetary Science Data Dictionary, 2005; PDS Standards Reference, 2003].     
For examples of the PDS labels used with each type of data product, see       
the DOCUMENT/RO_VIRTIS_EAICD text on each archive volume. In general, the     
PDS label is an object-oriented structure consisting of sets of 'keyword      
= value' declarations; the object which the label refers is denoted by     
a statement of the form:                                                      
                                                                              
        ^object = location                                                    
                                                                              
in which the carat character (^, also called a pointer in this context)       
indicates where to find the object.  In an embedded label, the location       
is an integer representing the starting record number of the object (the      
first record in the file is record 1).  In a detached label, the location     
denotes the name of the file containing the object, along with the            
starting record or byte number, if there is more than one object in the       
file. For example:                                                            
                                                                              
        ^HEADER = ("F01.IMG",1)                                               
        ^TABLE = ("T01.TAB",1025 <BYTES>)                                     
                                                                              
indicates that the TABLE object begins at byte 1025 of the file T01.TAB,      
in the same directory as the detached label file.  Below is a list of the     
possible formats for the ^object definition.                                  
                                                                              
        ^object = n                                                           
        ^object = n<BYTES>                                                    
        ^object = "filename.ext"                                              
        ^object = ("filename.ext",n)                                          
        ^object = ("[dirlist]filename.ext",n)                                 
        ^object = ("filename.ext",n<BYTES>)                                   
        ^object = ("[dirlist]filename.ext",n<BYTES>)                          
                                                                              
where n is the starting record or byte number of the object, counting         
from the beginning of the file (record 1, byte 1), <BYTES> indicates that     
the number given is in units of bytes, filename is up to 8 characters,     
alphanumeric upper-case file name, ext is the 3 character upper-case file     
extension, and dirlist is a period-delimited path-list of parent              
directories, in upper case, that specifies the object file directory          
(used only when the object is not in the same directory as the label          
file). The list begins at the directory level below the root directory.       
'[dirlist]' may be omitted when the object being described is located         
either in the same directory as the detached label or in a subdirectory       
named LABEL that is located in a higher level of the directory tree           
(typically root itself).                                                      
                                                                              
VIRTIS raw records are stored in PDS QUBE objects as defined in the PDS       
Standards Reference [2003]. A QUBE is a three-dimensional array of            
binary data values in two spatial dimensions (samples and lines) and one      
spectral dimension (bands). VIRTIS QUBEs always include an attached PDS       
label and SUFFIX data planes.                                                 
                                                                              
                                                                              
                                                                              
                                                                              
3.  Applicable Software                                                       
                                                                              
VIRTIS qubes can be read and managed with an IDL package written and          
maintained by S. Erard that can be found in the directory DOCUMENT. In        
the same directory can be found a manual explaining how to use this        
package (VIRTIS_PDS_IDL_SW_MANUAL).                                            
                                                                              
                                                                              
4.  Volume Contents                                                           
                                                                              
Files on the VIRTIS archive volume are organized into a series of             
subdirectories below the top-level directory.  See the xxxxINFO.TXT files     
in each directory for specific information on the files in the directory.     
                                                                              
The following table shows the generalized structure and contents of the       
VIRTIS archive volumes.  In this table, lowercase s's and n's used as         
placeholders for spacecraft clock reset number and integer part of            
acquisition spacecraft clock start count.                                     
                                                                              
                                                                              
                                                                              
Top-level directory                                                           
                                                                              
                                                                              
     | ------ AAREADME.TXT                                                    
     | ------ VOLDESC.CAT                                                     
     | ------ ERRATA.TXT                                                      
     | ------ CALIB                                                           
     |       | ----- DEADPIXELMAP.DAT                                         
     |       | ----- VIRTIS_M_VIS_RESP_10_V1.DAT                              
     |       | ----- VIRTIS_M_IR_RESP_10_V1.DAT                               
     |       | ----- VIRTIS_M_HRES_SPECAL_10_V1.TAB                           
     |       | ----- VIRTIS_M_NRES_SPECAL_10_V1.TAB                           
     |       | ----- VIRTIS_H_SPECTRAL_COEF_V1.TAB                            
     |       | ----- VIRTIS_H_SPECTRAL_WIDTH_V1.TAB                           
     |       | ----- VIRTIS_H_TRANSFERT_FCT_V1.TAB                            
     |       | ----- VIRTIS_RESAMPLED_IR_HIGH.TAB                             
     |       | ----- VIRTIS_RESAMPLED_VIS_HIGH.TAB                            
     |       | ----- VIRTIS_RESAMPLED_IR_NOM.TAB                              
     |       | ----- VIRTIS_RESAMPLED_VIS_NOM.TAB                             
     |       | ----- HSOLEILROS2014.TAB                                       
     |       | ----- DEADPIXELMAP.LBL                                         
     |       | ----- VIRTIS_M_VIS_RESP_10_V1.LBL                              
     |       | ----- VIRTIS_M_IR_RESP_10_V1.LBL                               
     |       | ----- VIRTIS_M_HRES_SPECAL_10_V1.LBL                           
     |       | ----- VIRTIS_M_NRES_SPECAL_10_V1.LBL                           
     |       | ----- VIRTIS_H_SPECTRAL_COEF_V1.LBL                            
     |       | ----- VIRTIS_H_SPECTRAL_WIDTH_V1.LBL                           
     |       | ----- VIRTIS_H_TRANSFERT_FCT_V1.LBL                            
     |       | ----- VIRTIS_RESAMPLED_IR_HIGH.LBL                             
     |       | ----- VIRTIS_RESAMPLED_VIS_HIGH.LBL                            
     |       | ----- VIRTIS_RESAMPLED_IR_NOM.LBL                              
     |       | ----- VIRTIS_RESAMPLED_VIS_NOM.LBL                             
     |       | ----- HSOLEILROS2014.LBL                                       
     |       | ----- CALIBINFO.TXT                                            
     | ------ CATALOG                                                         
     |       | ----- CATINFO.TXT                                              
     |       | ----- INST.CAT                                                 
     |       | ----- INSTHOST.CAT                                             
     |       | ----- MISSION.CAT                                              
     |       | ----- PERSON.CAT                                               
     |       | ----- REF.CAT                                                  
     |       | ----- SOFTWARE.CAT                                             
     |       | ----- TARGET.CAT                                               
     |       | ----- DATASET.CAT                                              
     | ------ DATA                                                            
     |       | ----- VIRTIS_M_VIS                                             
     |       |               | ----- Vs_nnnnnnnn.QUB                          
     |       | ----- VIRTIS_M_IR                                              
     |       |               | ----- Is_nnnnnnnn.QUB                          
     |       | ----- VIRTIS_H_                                                
     |       |               | ----- Hs_nnnnnnnn.QUB                          
     |       |               |----- Ss_nnnnnnnn.QUB                           
     |       |               |----- Ts_nnnnnnnn.QUB                           
     | ------ DOCUMENT                                                        
     |       | ----- RO_VIRTIS_EAICD.LBL                                      
     |       | ----- RO_VIRTIS_EAICD.PDF                                      
     |       | ----- DOCINFO.TXT                                              
     |       | ----- RO_VIRTIS_EAICD.ASC                                      
     |       | ----- VIR_M_CAL_UM.ASC                                         
     |       | ----- VIRTIS_H_CALIBRATION.LBL                                 
     |       | ----- VIRTIS_H_CALIBRATION.PDF                                 
     |       | ----- VIRTIS_H_CALIBRATION.ASC                                 
     |       | ----- VIR-IAS-TN-026_ISSUE1.LBL                                
     |       | ----- VIR-IAS-TN-026_ISSUE1.PDF                                
     |       | ----- VIR-IAS-TR-010_ISSUE2.LBL                                
     |       | ----- VIR-IAS-TR-010_ISSUE2.PDF                                
     |       | ----- VIR-IAS-TR-027_ISSUE1.LBL                                
     |       | ----- VIR-IAS-TR-027_ISSUE1.PDF                                
     |       | ----- VIRTIS_EXP_USER_MANUAL.LBL                               
     |       | ----- VIRTIS_EXP_USER_MANUAL.PDF                               
     |       | ----- VIRTIS_M_CALIBRATION_REPORT.ASC                          
     |       | ----- VIRTIS_M_CALIBRATION_REPORT.LBL                          
     |       | ----- VIRTIS_M_CALIBRATION_REPORT.PDF                          
     |       | ----- VIRTISROS_GEOMETRY.PDF                                   
     |       | ----- VIRTIS_PDS_IDL_SW_MANUAL.LBL                             
     |       | ----- VIRTIS_PDS_IDL_SW_MANUAL.PDF                             
     |       | ----- IMAGE001.PNG                                             
     |       | ----- IMAGE002.PNG                                             
     |       | ----- IMAGE003.PNG                                             
     |       | ----- IMAGE004.PNG                                             
     |       | ----- IMAGE005.PNG                                             
     |       | ----- IMAGE006.PNG                                             
     |       | ----- IMAGE007.PNG                                             
     |       | ----- IMAGE008.PNG                                             
     |       | ----- IMAGE009.PNG                                             
     |       | ----- IMAGE010.PNG                                             
     |       | ----- IMAGE011.PNG                                             
     |       | ----- IMAGE012.PNG                                             
     |       | ----- IMAGE013.PNG                                             
     |       | ----- IMAGE014.PNG                                             
     |       | ----- IMAGE015.PNG                                             
     |       | ----- IMAGE016.PNG                                             
     |       | ----- IMAGE017.PNG                                             
     |       | ----- IMAGE018.PNG                                             
     |       | ----- IMAGE019.PNG                                             
     |       | ----- IMAGE020.PNG                                             
     |       | ----- IMAGE021.PNG                                             
     |       | ----- IMAGE022.PNG                                             
     |       | ----- IMAGE023.PNG                                             
     |       | ----- IMAGE024.PNG                                             
     |       | ----- IMAGE025.PNG                                             
     |       | ----- IMAGE026.PNG                                             
     |       | ----- IMAGE027.PNG                                             
     | ------ EXTRAS                                                          
     |       | ----- CODE                                                     
     |       |          | ----- VIRTISPDS.LBL                                 
     |       |          | ----- VIRTISPDS.ZIP                                 
     | ------ INDEX                                                           
     |       | ----- INDXINFO.TXT                                             
     |       | ----- INDEX.LBL                                                
     |       | ----- INDEX.TAB                                                
                                                                              
                                                                              
                                                                              
5.  Whom to Contact for Information                                           
                                                                              
For questions concerning this data set:                                       
                                                                              
     Maria Teresa Capria                                                      
      INAF - IAPS                                                             
      Area Ricerca Tor Vergata                                                
      via del Fosso del Cavaliere, 100                                        
       00133 Roma, Italy                                                      
       Electronic mail address: mariateresa.capria@iaps.inaf.it               
                                                                              
     Romolo Politi                                                           
      INAF - IAPS                                                             
      Area Ricerca Tor Vergata                                                
      via del Fosso del Cavaliere, 100                                        
       00133 Roma, Italy                                                      
       Electronic mail address: romolo.politi@iaps.inaf.it                   
                                                                              
     Gianrico Filacchione                                                     
      INAF - IAPS                                                             
      Area Ricerca Tor Vergata                                                
      via del Fosso del Cavaliere, 100                                        
       00133 Roma, Italy                                                      
       Electronic mail address: gianrico.filacchione@iaps.inaf.it        
                                                                              
                                                                              
For questions concerning the IDL software:                                    
                                                                              
      Stephane Erard                                                          
      LESIA - Observatoire de Paris-Meudon                                    
      Place J. Janssen                                                        
      F-92 195 Meudon Cedex, France                                           
      Electronic mail address: stephane.erard@obspm.fr                        
                                                                              
                                                                              
6.  Cognizant Persons                                                         
                                                                              
 The data sets were prepared by M.T. Capria, R. Politi, and G. Filacchione,   
 all at INAF - Area di Ricerca di Tor Vergata, Rome, Italy. with the help of  
 F. Henry and S. Jacquinod at Observatoire de Paris, Meudon France