CCSD3ZF0000100000001NJPL3IF0PDS200000001= SFDU_LABEL                          
/*          File Format and Length                                  */        
PDS_VERSION_ID                = PDS3                                          
RECORD_TYPE                   = FIXED_LENGTH                                  
RECORD_BYTES                  = 30                                            
FILE_RECORDS                  = 260                                           
/*          Record Pointer to Major Objects                         */        
^TABLE                        = "RW850911.TAB"                                
/*          Description of Objects in File                          */        
DATA_SET_ID                   = "ICE-C-RADWAV-3-RDR-GIACOBIN-ZIN-V1.0"        
TARGET_NAME                   = "GIACOBINI-ZINNER"                            
OBSERVATION_ID                = "UNK"                                         
OBSERVATION_TIME              = 1985-09-11T11:00:00                           
START_TIME                    = 1985-09-11T10:00:00                           
NOTE                          = "ICE RADIO MAPPING EXPERIMENT DATA"           
DESCRIPTION                   = "This file contains the values of the         
density and temperature of the electrons measured during the tail             
crossing of comet Giacobini-Zinner by ISEE-3/ICE as derived from              
spectroscopy of the thermal noise spectrum.  The file was provided to         
the National Space Science Data Center (NASA/GSFC) by the Principal           
Investigator of the Radio Mapping Experiment on ISEE-3/ICE, Dr.               
Jean-Louis Steinberg of the Observatoire de Paris, Meudon, France.            
The instrument is described in 'The 3-dimensional Radio Mapping               
Experiment (SBH) on ISEE-C', by R. Knoll, G. Epstein, S. Hoang,               
G. Huntzinger, J.L. Steinberg, J. Fainberg, F. Grena, S.R. Mosier,            
and R.G. Stone, IEEE Transactions on Geoscience Electronics,                  
Vol. GE-16, No. 3, pp. 199-204, July 1978.                                    
                                                                              
The data cover the time interval from  10:00 UT to 12:00 UT on                
September 11, 1985.  The time resolution is 54 seconds.                       
                                                                              
     Since this method of measuring plasma parameters is relatively           
new, users of these data are referred to the following papers:                
                                                                              
  M. Meyer-Vernet, P. Couturier, S. Hoang, C. Perche, J.-L. Steinberg,        
  J. Fainberg and C. Meetre, Science, Vol. 232, p.370, 1986.                  
                                                                              
  N. Meyer-Vernet and C. Perche, J. Geophys. Res., Vol 94, p. 2405,           
  1989.                                                                       
                                                                              
     To derive the plasma parameters, it is assumed that the electron         
distribution function can be approximated by a bi-maxwellian.  The            
density given below is the total electron density (both electron              
populations) derived from the cut-off frequency of the thermal noise          
spectrum.  The temperature is that of the cold electron population            
which is always the dominant one.  Error bars in the two measured             
quantities are given in the first of the above mentioned papers."             
                                                                              
                                                                              
                                                                              
OBJECT                        = TABLE                                         
  NAME                        = "ELECTRON_DENSITY_AND_TEMPERATURE"            
  ROWS                        = 260                                           
  ROW_BYTES                   = 30                                            
  COLUMNS                     = 5                                             
  INTERCHANGE_FORMAT          = ASCII                                         
  DESCRIPTION                 = "This table contains electron density         
and temperature as derived from the thermal noise spectrum obtained           
by the Radio Mapping Experiment on ISEE-3/ICE."                               
                                                                              
/*  Sector count columns:    */                                               
                                                                              
  OBJECT                      = COLUMN                                        
    NAME                      = "HOUR"                                        
    BYTES                     = 2                                             
    START_BYTE                = 3                                             
    DATA_TYPE                 = ASCII_INTEGER                                 
    FORMAT                    = "I2"                                          
    UNIT                      = "hours"                                       
    DESCRIPTION               = "Time of observation - hours"                 
  END_OBJECT                  = COLUMN                                        
                                                                              
  OBJECT                      = COLUMN                                        
    NAME                      = "MINUTE"                                      
    BYTES                     = 2                                             
    START_BYTE                = 5                                             
    DATA_TYPE                 = ASCII_INTEGER                                 
    FORMAT                    = "I2"                                          
    UNIT                      = "minutes"                                     
    DESCRIPTION               = "Time of observation - minutes"               
  END_OBJECT                  = COLUMN                                        
                                                                              
  OBJECT                      = COLUMN                                        
    NAME                      = "SECOND"                                      
    BYTES                     = 2                                             
    START_BYTE                = 7                                             
    DATA_TYPE                 = ASCII_INTEGER                                 
    FORMAT                    = "I2"                                          
    UNIT                      = "S"                                           
    DESCRIPTION               = "Time of observation - seconds"               
  END_OBJECT                  = COLUMN                                        
                                                                              
  OBJECT                      = COLUMN                                        
    NAME                      = "DENSITY"                                     
    BYTES                     = 6                                             
    START_BYTE                = 11                                            
    DATA_TYPE                 = ASCII_REAL                                    
    FORMAT                    = "F6.2"                                        
    UNIT                      = "cm**-3"                                      
    DESCRIPTION               = "Total electron density (both                 
populations) per cubic centimeter"                                            
  END_OBJECT                  = COLUMN                                        
                                                                              
  OBJECT                      = COLUMN                                        
    NAME                      = "TEMPERATURE"                                 
    BYTES                     = 10                                            
    START_BYTE                = 19                                            
    DATA_TYPE                 = ASCII_REAL                                    
    FORMAT                    = "E10.4"                                       
    UNIT                      = "K"                                           
    DESCRIPTION               = "Temperature of the cold electron             
population, in K"                                                             
  END_OBJECT                  = COLUMN                                        
                                                                              
END_OBJECT                    = TABLE                                         
                                                                              
END