***** File HAL_0007.TXT                                                       
                                                                              
     For each CD-ROM, the documentation and index files contain statistics    
about the images.  Some of these text files contain erroneous information.  A 
summary review of the disk also revealed some inconsistences and other        
mistakes.   This file lists the mistakes and gives corrections.               
                                                                              
     The "day fraction" listed for the last image in the VOLUME.TXT file is   
incorrect; the value for Mar 15 is 0.37066.  The file VOLDESC.SFD has a       
byte count error for the inventory section; the value should be 21245.        
                                                                              
     The file EPHEM.HDR does not correctly describe the EPHEM.IDX file; a     
blank was deleted from the third column (HOURS) and inserted in the fourth    
(JULIAN DAY).  The FITS header should contain the corrected format keyword    
- TFORM04 = 'F2.1    '- for the HOURS column description.                     
                                                                              
     The file IMAGUIDE.TXT was mistakenly copied from a master set of         
documentation which describes another disk. The first paragraph should either 
be omitted or replaced with copy from one of the other volumes.               
                                                                              
   In PDSINFO.TXT there is a PDS description for "dataless headers".          
This type of file is listed in the NETLARGE.IDX table but does not occur      
on these discs and should be deleted from this file.