***** File VOLUME.TXT                                                         
                                                                              
                                                                              
    This CD-ROM contains 109 compressed image files for Comet Halley          
(LSPN0440-LSPN0629) as well as 8 calibration data (LSPN4015-LSPN4022)         
in compressed form that span the dates from Dec 07 to Dec 14, 1985.           
In each case, a Browse image has been provided for easy viewing.              
                                                                              
             ----------------------------------------                         
              image type      files      total size                           
             ----------------------------------------                         
             Comet Halley      109        621.1 Mbyte                         
             calibrations        8          1.0 Mbyte                         
             ----------------------------------------                         
                    total      117        622.1 Mbyte                         
             ----------------------------------------                         
             ----------------------------------------                         
                                                                              
     ------------------------------------------------------------             
                        UT date        UT time      Julian Date               
                        dd/mm/yy      day fract                               
     ------------------------------------------------------------             
     first image time   07/12/85       0.17500     2446406.675000             
                                                                              
      last image time   14/12/85       0.09931     2446406.599305             
     ------------------------------------------------------------             
     ------------------------------------------------------------             
                                                                              
In addition, the data received but not digitized in the corresponding         
catalog range (LSPN0439 to LSPN0629) are included as entries in the           
NETLARGE.IDX table in the INDEX directory.   These data which were taken      
in the time span Dec 07, 1985 to Dec 14, 1985 are archived by "dataless       
headers" from which the information in NETLARGE.IDX is collected.