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 PDS_VERSION_ID          = PDS3                                              
RECORD_TYPE             = STREAM                                             
OBJECT                  = TEXT                                               
  PUBLICATION_DATE      = 2017-10-02                                         
  NOTE                  = "AAREADME.TXT describes this volume."              
END_OBJECT              = TEXT                                               
END                                                                          
                                                                             
                             Cassini Orbiter                                 
                              Magnetometer                                   
                                                                             
                     Raw Magnetic Field Data Archive                         
                                                                             
              Planetary Plasma Interactions Discipline Node                  
                                  of the                                     
                          Planetary Data System                              
                                COMAG_9001                                   
                                                                             
1. Introduction                                                              
                                                                             
This volume contains Cassini magnetometer (MAG) raw data covering 1999-08-16 
(DOY 228) to 2016-12-31 (DOY 366).                                           
                                                                             
This Cassini Orbiter Magnetometer Raw Data volume contains raw REDR          
(Reformatted Experimenter Data Record) magnetic-field data from the Cassini  
Fluxgate (FGM) and Vector-Helium (VHM) Magnetometers. These data have been   
extracted from telemetry packets, assigned time tags, and formatted into     
binary tables. The data are in sensor coordinates and in engineering units   
(data numbers). Software is provided on this volume which will convert the   
raw data to into nanoTesla, and transform them into different time and       
coordinate systems. The volume set also includes ancillary engineering, and  
housekeeping information files, as well as channelized data files (e.g.      
spacecraft attitude, and MAG subsystem status information). These additional 
files are provided to facilitate data processing and analysis.               
                                                                             
2. Volume format                                                             
                                                                             
The data set volume is organized into a hierarchical directory structure.    
The volume contains both the Universal Disk Format (UDF) and the ISO 9660    
(level 2)file system standards in order to accommodate users on a wide       
variety of platforms.                                                        
                                                                             
3. File formats                                                              
                                                                             
The data files on this volume are provided as IGPP Flatfiles which consist of
a Sun IEEE binary data file (.FFD extension), and an ASCII header file (.FFH 
extension). Each data files is accompanied by a detached PDS label file (.LBL
extension) which contains information describing the data file and data      
record format.                                                               
                                                                             
Document files describing the volume, the data and data-calibration software 
are included in the volume.                                                  
                                                                             
                                                                             
Software for calibrating the data, and transforming it to alternative        
coordinate systems, is provided on the volume. Software files include        
executable files for PC platforms, and source code (C++) in text files for   
compilation on other platforms.                                              
                                                                             
                                                                             
4. Volume contents                                                           
                                                                             
The files on this volume are organised into one Root directory containing    
several subdirectories. The following table shows the structure and content  
of these directories. In the table, directory names are enclosed in square   
brackets, upper-case letters indicate an actual directory or file name, and  
lower-case letters indicate the general form of a set of directories or file 
names.                                                                       
                                                                             
DIRECTORY OR FILE             CONTENTS                                       
                                                                             
COMAG_9001 (Root)                                                            
|                                                                            
|- AAREADME.TXT               This file                                      
|                                                                            
|- ERRATA.TXT                 Description of known anomalies on this volume  
|                                                                            
|- VOLDESC.CAT                Description of the contents of this volume     
|                                                                            
|- [BROWSE]                   Plots of all available magnetic field data     
|                                                                            
|- [CALIB]                    Instrument calibration data                    
|                                                                            
|- [CATALOG]                  Catalog files describing mission and dataset   
|                                                                            
|- [DATA]                     MAG data files                                 
|     |                                                                      
|     |- [Yyy]                Data for the year yy                           
|          |                                                                 
|          |- [yyddd]         Data for day ddd of year yy                    
|                |                                                           
|                |- [MRDCD]   Instrument data                                
|                |                                                           
|                |- [SCDCD]   Spacecraft data                                
|                                                                            
|- [DOCUMENT]                 Relevant documentation                         
|     |                                                                      
|     |- [CAL02_GUIDE]        Vector calibration software user guide         
|     |                                                                      
|     |- [DATA_QUALITY]       Files recording known errors in the data       
|     |                                                                      
|     |- [TRANSCAL_GUIDE]     Vector transformation software user guide      
|     |                                                                      
|     |- [VOLSIS]             Archive volume SIS                             
|     |                                                                      
|     |- [SOFTWARE]           Calibration/transformation software            
|         |                                                                  
|         |- [EXAMPLE_FILES]      Examples of data                           
|         |                                                                  
|         |- CAL02.EXE            The executable application required to     
|         |                       calibrate raw vector data files to         
|         |                       give correct magnetic-field values         
|         |                       relative to the spacecraft coordinate      
|         |                       system                                     
|         |                                                                  
|         |- CAL02.CPP            C++ source code for the CAL02 application  
|         |                                                                  
|         |- CAL_MAG.H            C++ header file required by calibration    
|         |                       software                                   
|         |                                                                  
|         |- CALFUNC02.H          C++ header file required by calibration    
|         |                       software                                   
|         |                                                                  
|         |- CALFUNC02.CPP        C++ source file required by calibration    
|         |                       software                                   
|         |                                                                  
|         |- FF_IGPP.C            C Source, UCLA Flatfile procedures         
|         |                                                                  
|         |- FF_IGPP.H            C Header File, UCLA Flatfile declarations  
|         |                       and type defs                              
|         |                                                                  
|         |- KERNEL_FILELIST.TXT  Metafile containing a list of the SPICE    
|         |                       kernels loaded by TransCal                 
|         |                                                                  
|         |- TIME_IGPP.C          C Source, UCLA Flatfile Time Functions     
|         |                                                                  
|         |- TIME_IGPP.H          C Header File, UCLA Flatfile Time          
|         |                       declarations and definitions.              
|         |                                                                  
|         |- TIME_IGPPP.H         C Header File, More UCLA Time definitions  
|         |                                                                  
|         |- TRANSCAL.CPP         C++ source code for the TRANSCAL           
|                                 appplication                               
|                                                                            
|- [INDEX]                    Index files relating to this volume            
                                                                             
                                                                             
                                                                             
5. Errata                                                                    
                                                                             
Every effort has been made to ensure that the data and documentation are of  
the best possible quality. However, mistakes are inevitable. The PPI Node of 
the PDS will maintain an online list of ERRATA where errors and updates are  
documented. Should any user of this product find an error on this volume,    
please report the error to the PPI Node so that the finding can be made      
public. All users are encouraged to verify the correctness of the data prior 
to submitting any publications or other work based on these data.            
                                                                             
There is a file called ERRATA.TXT found at the root level of this volume     
which contains a list of known deficiencies or caveats associated with data  
on this volume.                                                              
                                                                             
If you find an error on this volume, please report the error to the PDS      
Operator at the PPI Node of the PDS.                                         
                                                                             
  Email             pds_operator@igpp.ucla.edu                               
  Telephone         (310) 206-6073                                           
  U.S. Mail         PDS Operator                                             
                    c/o Dr. Raymond Walker                                   
                    UCLA - IGPP                                              
                    Los Angeles, CA 90095-1567                               
                                                                             
                                                                             
6. Contacts                                                                  
                                                                             
The person most directly responsible for the construction and release of this
archive volume is Mr. Steven Joy. He was the PPI Node Data Administrator at  
the time this volume was created and understands as much about the data      
structure and data organization as anyone. Other PPI personnel who may be    
aware of issues related to this archive volume include Mr. Joseph Mafi, and  
Dr. Raymond Walker, the PDS/PPI Node manager.                                
                                                                             
For questions or problems regarding this volume, please contact the PDS/PPI  
operator:                                                                    
                                                                             
    Email               pds_operator@igpp.ucla.edu                           
    Telephone           (310) 206-6073                                       
    U.S. Mail           PDS Operator                                         
                        c/o Dr. Raymond Walker                               
                        3845 Slichter Hall                                   
                        UCLA - IGPP                                          
                        Los Angeles, CA 90095-1567                           
                                                                             
For questions regarding PDS Standards or other archive volumes available from
the PDS, please contact PDS Operator at the PDS Central Node (at JPL):       
                                                                             
    Email               pds_operator@jpl.nasa.gov                            
    Telephone           (818) 354-4321                                       
    U.S. Mail           Planetary Data System, PDS Operator                  
                        Jet Propulsion Laboratory                            
                        Mail Stop 202-101                                    
                        4800 Oak Grove Dr.                                   
                        Pasadena, CA 91109-8099                              
                                                                             
A complete list of personnel in the Cassini MAG team is given on this volume 
in /CATALOG/PERSON.CAT.                                                      
                                                                             
The PDS and the Planetary Plasma Interactions (PPI) Node in particular,      
assume no legal liability for errors on this volume. All users are encouraged
to verify the 'correctness' of the data prior to submitting any publications 
or other work based on these data. Errors on this volume should be reported  
back to the PPI Node of the PDS through the ERRATA reporting procedures      
described above.