CCSD3ZF0000100000001NJPL3IF0PDSX00000001
                            
PDS_VERSION_ID      = PDS3                                            
RECORD_TYPE         = STREAM                                          
OBJECT              = TEXT                                            
  PUBLICATION_DATE    = 1995-04-18                                    
  NOTE                = "Description of contents of GEOMETRY          
                         directory"                                   
END_OBJECT          = TEXT                                            
END                                                                   
                                                                      
      The GEOMETRY directory holds NAIF SPK, SCLK, and CK files for   
Clementine bistatic radar experiments.                                
                                                                      
      Each file is a data module which can be read and interpreted    
using software provided by the PDS Navigation and Ancillary           
Information Facility (NAIF).  That software is described briefly in   
TK_FTP.TXT, TK_DESCR.TXT, and TK_INSTL.TXT in the DOCUMENT directory. 
                                                                      
      Each line in each SPK, SCLK, and CK file is delimited by an     
ASCII carriage-return line-feed pair.  Users may need to remove one   
of these before using the file with the NAIF software.  For example,  
most Unix users will need to convert the carriage-return line-feed    
pair to a single line-feed.                                           
                                                                      
      After adaptation of the line delimiters for the local           
operating system, users will normally convert the file from its       
archival 'transfer' format to the local binary format using the       
NAIF utility SPACIT.                                                  
                                                                      
      SPK file names are of the form SPKyyddd.TSP.  Detached PDS      
labels have names SPKyyddd.LBL.  In each case yyddd represents the    
2-digit year and 3-digit day-of-year on which the file starts.        
For the Clementine experiments yyddd = 94099, 94100, or 94113.        
                                                                      
      CK file names are of the form CKyyddd.TCK.  Detached PDS labels 
have names CKyyddd.LBL.  In each case yyddd represents the 2-digit    
year and 3-digit day-of-year on which the file starts.  For the       
Clementine experiments yyddd = 94099 or 94113.                        
                                                                      
      The SCLK file name is DSPSE002.TSC.  It covers mission phases   
from Low Earth Orbit through Earth Phasing Loop B.