***** File VOLUME.TXT                                                         
                                                                              
                                                                              
    This CD-ROM contains 70 compressed image files for Comet Halley           
(LSPN1670-LSPN1777) as well as 3 calibration images (LSPN4106-4108)           
in compressed form that span the dates from Mar 20 to Mar 22, 1986.           
In each case, a Browse image has been provided for easy viewing.              
                                                                              
             ----------------------------------------                         
              image type      files      total size                           
             ----------------------------------------                         
             Comet Halley       70        606.8 Mbyte                         
             calibrations        3          0.9 Mbyte                         
             ----------------------------------------                         
                    total       73        607.7 Mbyte                         
             ----------------------------------------                         
             ----------------------------------------                         
                                                                              
     ------------------------------------------------------------             
                        UT date        UT time      Julian Date               
                        dd/mm/yy      day fract                               
     ------------------------------------------------------------             
     first image time   20/03/86       0.51007     2446510.010069             
                                                                              
      last image time   22/03/86       0.83576     2446512.335764             
     ------------------------------------------------------------             
     ------------------------------------------------------------             
                                                                              
In addition, the data received but not digitized in the corresponding         
catalog range (LSPN1670 - LSPN1777) are included as entries in the            
NETLARGE.IDX table in the INDEX directory.   These data which were taken      
in the time span Mar 20, 1986 to Mar 22, 1986, are archived by "dataless      
headers" from which the information in NETLARGE.IDX is collected.