===============================================================================
CONTENTS OF THE DIRECTORY

This directory contains absolute observational data concerning the galilean 
satellites of Jupiter from 1983 to 1985. One will find:

1) - File  pos_abs_jup.dat

     Contents:
       - File containing 40 photographic observations of absolute positions of 
         the galilean satellites of Jupiter made on 3 oppositions by 1 observer 
         from 1 site, from  March 13, 1983 to October 18, 1985. (absolute 
         coordinates in equatorial 1950,0 reference frame),
       - This coordinates are right ascension and declination.

     Reference: 
         These observations are extracted from,
	 -  Voronenko, V., Gorel, G.: 1988, Glav. Astron. Obs. Akad.  30pp.                                        
  
     Format: 
         This is a sequential file and ne record contains 130 bytes with the 
         following format,

         i4      the year,
         4i2     the month, the day, hours, minutes,
         f4.1    seconds,
         i2      code of the reference frame, 1 = mean terrestrial equatorial 
                                                  frame, 1950,
                                              2 = Jovian equatorial frame of
                                                  the date,
                                              3 = others special frames.
         i2      code of referential center,  1 = center of gravity of observed
                                                  satellites,
                                              2 = center of observed Jupiter.
         i4      code of Nicolaiev observatory in Russia coded 410, 
         4f11.6  right ascensions of each observed satellite in degrees, 
                 or - ,in format a11, if the coordinate is absent
         4f11.6  declinations of each observed satellite in degrees,
                 or - ,in format a11, if the coordinate is absent 
         f8.3    the plate scale in arsecond per millimeter, unknown
         i4      the number of series of observations,
         i4      the number of code 1119 of the observers Voronenko and Gorel,
         i4      the number of year of opposition of Jupiter.        

2) - Le fichier tab_vatoirabs_jup.dat

     Contents: 
       - 1 name of the site of observations with this code in the file
         pos_abs_jup.dat

     Format:
       - This is a sequential file which has 1 record of 30 bytes with the 
         following format 2a,i4,

         a18   the name of the site of observations,
         a8    "is coded",
         i4    the number of code of the site.

3) - The file tab_vatorabs_jup.dat

     Contents: 
       - 1 name of observer with this code in the file
         pos_abs_jup.dat

     Format:
       - This is a sequential file which has 1 record of 36 bytes with the 
         following format 2a,i4,

         a27   the name of the observer,
         a5    "coded",
         i4    the number of the code of the observer.
 
==============================================================================