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CONTENTS OF THE DIRECTORY

This directory contains observational data concerning the occultations of the 
galilean satellites of Jupiter from 1836 to 1972. One will find:

1) - The file obs_occult_jup.dat 

     Contents
       - 4411 observations of occultation events of the Galilean  
         satellites since January, 1836 to June, 1972
       - these observations are made from 45 sites,
       - It provides for the observed satellite,
 
	. the type of the event and the O-C from the three ephemerides 
	  SV2(Vu 1977), E-2(Lieske 1980), G-5(Arlot 1980),
	. the time elapsed, TOC, between the first/last contact and the 
	  bissection/mid-event, 
	. the site of observation, 
	. the bibliographic reference with codes.
	. the type of the event and the O-C from the three ephemerides 
	  SV2(Vu 1977), E-2(Lieske 1980), G-5(Arlot 1980),
	. the time elapsed, TOC, between the first/last contact and the 
	  bissection/mid-event, 
	. the code of the site of observation; the name of the site is given
          in the file tab_vatoir_oc.dat,   
	. the code of the observers; the names are given in the file
          tab_vator_oc.dat.

     Reference 
         these original observations are described in,
         - Fairhead, L. et al., 1986, Astron. Astrophys. Suppl. Ser,169: 360-366
         - Fairhead, L. et al., 1987, Astron. Astrophys. Suppl. Ser, 68: 81-102.

         The O-C are computed by,,
         - Vu, D.T.,     1977, Astron. Astrophys.  Suppl. Ser., 30: 361 (SV2),
         - Lieske, J.H., 1980, Astron. Astrophys.  82: 340-348,          (E2),
         - Arlot, J.-E., 1982, Astron. Astrophys., 107: 464,             (G5),

     Format
         This is a sequential file and each observation is given as a record of 
         132 bytes with the following format, 

         - the year                                    i5
         - the month, the day, hours, minutes          4i3
         - seconds                                     f5.1
         -                                             2x
         - the name of the observed satellite          a10
         - the code of event                           a3
         - O-C in seconds (SV2) 	      	       f9.1 (theory Vu, 1977)
         - O-C in seconds (E-2)   	      	       f8.1 (theory Lieske,1980)
         - O-C in seconds (G-5)   	      	       f8.1 (theory Arlot, 1982)
         - TOC in seconds  		      	       f8.1 (see publication)
         - differential coordinate Y                   f11.6 (jovian radius)
         - the code of the site 	     	       i8
         - the code of the observer     	       i8
         - contact and observational condition         a40
	
2) - the file tab_vatoir_oc.dat

     Contents 
       - 45 names of sites of observation with the code of them.

     Format
         This a sequential file with a record of 36 bytes and with a following
         format,

         - a26  the name of the site,
         - a5   "coded",
         - i5   the code of the site from NSDB.


3) - the file tab_vator_oc.dat 

     Contents 
       - 312 names of the observers with the code of them.

     Format
         This a sequential file with a record of 30 bytes and with a following
         format,

         - a26  the name of the observer,
         - i4   the code of the observer from NSDB.

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