***** File VOLUME.TXT                                                         
                                                                              
                                                                              
    This CD-ROM contains 69 compressed image files for Comet Halley           
(LSPN1367-LSPN1466) as well as 5 calibration data (LSPN4088-LSPN4092)         
in compressed form that span the dates from March 11 to March 15, 1986.       
In each case, a Browse image has been provided for easy viewing.              
                                                                              
             ----------------------------------------                         
              image type      files      total size                           
             ----------------------------------------                         
             Comet Halley       69        629.7 Mbyte                         
             calibrations        5          1.3 Mbyte                         
             ----------------------------------------                         
                    total       74        631.0 Mbyte                         
             ----------------------------------------                         
             ----------------------------------------                         
                                                                              
     ------------------------------------------------------------             
                        UT date        UT time      Julian Date               
                        dd/mm/yy      day fract                               
     ------------------------------------------------------------             
     first image time   11/03/86       0.36771     2446501.344097             
                                                                              
      last image time   15/03/86       0.37066     2446504.870660             
     ------------------------------------------------------------             
     ------------------------------------------------------------             
                                                                              
In addition, the data received but not digitized in the corresponding         
catalog range (LSPN1367 to LSPN1466) are included as entries in the           
NETLARGE.IDX table in the INDEX directory.   These data which were taken      
in the time span MAR 11, 1986 to Mar 15, 1986 are archived by "dataless       
headers" from which the information in NETLARGE.IDX is collected.