***** File VOLUME.TXT                                                         
                                                                              
                                                                              
    This CD-ROM contains 67 compressed image files for Comet Halley           
(LSPN1467-LSPN1570) as well as 2 calibration data (LSPN4093-LSPN4094)         
in compressed form that span the dates from Mar 15 to Mar 18, 1986.           
In each case, a Browse image has been provided for easy viewing.              
                                                                              
             ----------------------------------------                         
              image type      files      total size                           
             ----------------------------------------                         
             Comet Halley       67        611.8 Mbyte                         
             calibrations        2          0.5 Mbyte                         
             ----------------------------------------                         
                    total       69        612.3 Mbyte                         
             ----------------------------------------                         
             ----------------------------------------                         
                                                                              
     ------------------------------------------------------------             
                        UT date        UT time      Julian Date               
                        dd/mm/yy      day fract                               
     ------------------------------------------------------------             
     first image time   15/03/86       0.38924     2446504.889236             
                                                                              
      last image time   18/03/86       0.40208     2446507.902083             
     ------------------------------------------------------------             
     ------------------------------------------------------------             
                                                                              
In addition, the data received but not digitized in the corresponding         
catalog range (LSPN1467 - LSPN1570) are included as entries in the            
NETLARGE.IDX table in the INDEX directory.   These data which were taken      
in the time span Mar 15, 1986 to Mar 18, 1986, are archived by "dataless      
headers" from which the information in NETLARGE.IDX is collected.