PDS_VERSION_ID                   = PDS3                                       
                                                                              
OBJECT                           = DATA_SET                                   
 DATA_SET_ID                     = "EAR-A-5-DDR-RADAR-V3.0"                   
                                                                              
  OBJECT                         = DATA_SET_INFORMATION                       
  DATA_SET_NAME                  = "ASTEROID RADAR V3.0"                      
  DATA_SET_COLLECTION_MEMBER_FLG = "N"                                        
  DATA_OBJECT_TYPE               = TABLE                                      
  START_TIME                     = 1968                                       
  STOP_TIME                      = 1996                                       
  DATA_SET_RELEASE_DATE          = 1996-03-29  /* Peer Review Date */         
  PRODUCER_FULL_NAME             = "Carol Neese"                              
  DATA_PROVIDER_FULL_NAME        = "Steven J. Ostro"                          
  DATA_SET_UPDATE_PERIOD         = 1.0                                        
  DETAILED_CATALOG_FLAG          = "N"                                        
  DATA_SET_DESC                  = "                                          
                                                                              
Data Set Overview                                                             
=================                                                             
                                                                              
 This dataset is intended to include all groundbased asteroid radar           
detections.  These data were collected from the published literature by Dr.   
Steven J. Ostro.  Observations which have not yet been published, or which    
have been reported only in an abstract, are included in the dataset as an     
entry with blank data fields, for the purpose of informing the dataset users  
of the existence of these detections.  As the data from these detections are  
published, the data are added to this dataset in yearly updates.              
Scientific questions about this dataset should be directed to Dr. Steven      
J. Ostro, JPL, at the email address ostro@echo.jpl.nasa.gov.                  
                                                                              
Modification History                                                          
====================                                                          
                                                                              
 The radar data set was first introduced into PDS at the April 1994 asteroid  
datasets review, and has been updated yearly since that time.  Updates        
consist in adding entries for asteroid radar detections made since the        
previous update, and adding full data for detections which have been          
published since the last update.                                              
                                                                              
Parameters                                                                    
==========                                                                    
                                                                              
 An entry for each detection reports radar cross-section and circular         
polarization, if known, error values for these parameters, the year of        
observation, and the reference in which the observations were reported.       
                                                                              
Processing                                                                    
==========                                                                    
                                                                              
 No processing has been performed on these data beyond that reported          
in the published papers from which the data were drawn.                       
                                                                              
Data                                                                          
====                                                                          
                                                                              
 This dataset comprises a single data table, 'radar.tab', tabulating the      
parameters listed above.                                                      
                                                                              
Media/Format                                                                  
============                                                                  
                                                                              
 This dataset is released as an ascii file which may be stored on             
disk or other magnetic medium and which may be distributed by ftp, email,     
real-time access by remote login, or whatever means is most convenient.       
"                                                                             
  CONFIDENCE_LEVEL_NOTE          = "                                          
                                                                              
Confidence Level Overview                                                     
=========================                                                     
                                                                              
 The confidence level of each data value reported is reflected in             
the uncertainty value in the same entry.  Further information about the       
observations can be obtained by consulting the original reference for         
each entry.                                                                   
                                                                              
Review                                                                        
======                                                                        
                                                                              
 This data set underwent formal external review on March 29, 1995.            
                                                                              
Data Coverage and Quality                                                     
=========================                                                     
                                                                              
 This dataset is intended to include all groundbased radar detections         
of asteroids.  It is complete through January 1996.                           
                                                                              
Limitations                                                                   
===========                                                                   
                                                                              
 This dataset is intended only to collect the data reported in the            
published literature, as well as to record the existence of unpublished       
asteroid radar detections.                                                    
"                                                                             
 END_OBJECT                      = DATA_SET_INFORMATION                       
                                                                              
 OBJECT                          = DATA_SET_TARGET                            
  TARGET_NAME                    = ASTEROID                                   
 END_OBJECT                      = DATA_SET_TARGET                            
                                                                              
 OBJECT                          = DATA_SET_HOST                              
  INSTRUMENT_HOST_ID             = "N/A"                                      
  INSTRUMENT_ID                  = "N/A"                                      
 END_OBJECT                      = DATA_SET_HOST                              
                                                                              
 OBJECT                          = DATA_SET_REFERENCE_INFORMATION             
  REFERENCE_KEY_ID               = "OSTRO1989"                                
 END_OBJECT                      = DATA_SET_REFERENCE_INFORMATION             
                                                                              
END_OBJECT                       = DATA_SET                                   
                                                                              
  OBJECT                         = REFERENCE                                  
  REFERENCE_KEY_ID               = "OSTRO1989"                                
   REFERENCE_DESC                = "Ostro, S. J. 1989.  Radar                 
Observations of Asteroids.  In Asteroids II (R. P. Binzel, T. Gehrels,        
and M. S. Matthews, eds.), pp. 192-212.  Univ. of Arizona Press, Tucson."     
  END_OBJECT                     = REFERENCE                                  
                                                                              
END