PDS_VERSION_ID = PDS3                                                         
RECORD_TYPE    = STREAM                                                       
OBJECT         = TEXT                                                         
  PUBLICATION_DATE = 2000-06-22                                               
  NOTE             = "DATAINFO.TXT describes the Magnetometer/Electron        
                      Reflectometer (MAG/ER) data available on this           
                      volume."                                                
END_OBJECT     = TEXT                                                         
END                                                                           
                                                                              
The DATA directory contains the Magnetometer and Electron Reflectometer       
(MAG/ER) data and some ancillary data.  The subdirectories of the DATA        
directory are:                                                                
                                                                              
                                                                              
  ER_3DIST  Contains the ER 3D electron energy spectra data, in               
    |       5 subdirectories:                                                 
    |                                                                         
    +- JAN_1998  Data from January 1998.                                      
    +- FEB_1998  Data from February 1998.                                     
    +- MAR_1998  Data from March 1998.                                        
    +- APR_1998  Data from April 1998.                                        
    +- MAY_1998  Data from May 1998.                                          
                                                                              
  ER_HI_TS  Contains the ER high-resolution (~5 sec) time                     
    |       series data for two selected energy channels,                     
    |       in 5 subdirectories:                                              
    |                                                                         
    +- JAN_1998  Data from January 1998.                                      
    +- FEB_1998  Data from February 1998.                                     
    +- MAR_1998  Data from March 1998.                                        
    +- APR_1998  Data from April 1998.                                        
    +- MAY_1998  Data from May 1998.                                          
                                                                              
  ER_LO_TS  Contains the ER low-resolution (~80 sec) time                     
    |       series data for all 15 energy channels,                           
    |       in 5 subdirectories:                                              
    |                                                                         
    +- JAN_1998  Data from January 1998.                                      
    +- FEB_1998  Data from February 1998.                                     
    +- MAR_1998  Data from March 1998.                                        
    +- APR_1998  Data from April 1998.                                        
    +- MAY_1998  Data from May 1998.                                          
                                                                              
  MAG       Contains the magnetometer (MAG) vector data,                      
    |       in 5 subdirectories:                                              
    |                                                                         
    +- JAN_1998  Data from January 1998.                                      
    +- FEB_1998  Data from February 1998.                                     
    +- MAR_1998  Data from March 1998.                                        
    +- APR_1998  Data from April 1998.                                        
    +- MAY_1998  Data from May 1998.                                          
                                                                              
  ANCIL     Contains a table of telemetry outages, which may be useful        
            for the interpretation of the MAG and ER data.                    
                                                                              
Each of the two directories ER_LO_TS and ER_HI_TS also includes a file        
E_BINS.TAB, which contains the energy bin center values for the data          
under the directory and the times at which those bin center values            
become applicable. E_BINS.LBL is the PDS label file for E_BINS.TAB.           
Note that the energy bins for the data in ER_HI_TS need not be the same       
as any of the bins for the data in ER_LO_TS.                                  
                                                                              
The directory ER_3DIST includes a file THETA.TAB, which contains values       
of the inclination angle which the detector center makes with the             
spacecraft spin, corresponding to the phi values in the data under            
ER_3DIST. The file THETA.LBL is the detached PDS label for THETA.TAB.         
                                                                              
In addition to accessing data files directly, users with Web browsers         
can access them via links in four HTML files in the EXTRAS directory          
(ER3DDATA.HTM, ERHRDATA.HTM, ERLRDATA.HTM and MAGDATA.HTM). These users       
also can navigate the entire disk using the file AAREADME.HTM in the          
disk root directory.