***** File VOLUME.TXT                                                         
                                                                              
                                                                              
    This CD-ROM contains 76 compressed image files for Comet Halley           
(LSPN1778-LSPN2026) as well as 26 calibration images (LSPN4109-4134)          
in compressed form that span the dates from Mar 22 to Apr 04, 1986.           
In each case, a Browse image has been provided for easy viewing.              
                                                                              
             ----------------------------------------                         
              image type      files      total size                           
             ----------------------------------------                         
             Comet Halley       76        602.4 Mbyte                         
             calibrations       26          9.5 Mbyte                         
             ----------------------------------------                         
                    total      102        611.9 Mbyte                         
             ----------------------------------------                         
             ----------------------------------------                         
                                                                              
     ------------------------------------------------------------             
                        UT date        UT time      Julian Date               
                        dd/mm/yy      day fract                               
     ------------------------------------------------------------             
     first image time   22/03/86       0.90383     2446512.403831             
                                                                              
      last image time   04/04/86       0.87986     2446525.379861             
     ------------------------------------------------------------             
     ------------------------------------------------------------             
                                                                              
In addition, the data received but not digitized in the corresponding         
catalog range (LSPN1778 - LSPN2027) are included as entries in the            
NETLARGE.IDX table in the INDEX directory.   These data which were taken      
in the time span Mar 22, 1986 to Apr 04, 1986, are archived by "dataless      
headers" from which the information in NETLARGE.IDX is collected.