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CONTENTS OF THE DIRECTORY

This directory contains the observational data of the absolute position of the
satellites of Saturn occurring from 1966 to 1989. One will find:

1) - The file obs_abs_satu.dat

     Contents 
       - 5831 observations observed from September 1966 until September 1989,
       - they are observed from 15 sites by 29 observers on 23 oppositions, 
       - the file provides one record for each individual observation.

     References
         These observations are described in,
         . Strugnell P.R. and Taylor D.B.: 1990, A catalogue of ground-based 
           observations of the eight major satellites of Saturn, 1874-1989,
           Astron. Astrophys. Suppl. Ser. 83, 289-300.
         . Voronenko, V., Gorel, G., 1988: Glav. Astron. Obs. Akad.  30pp. 

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

                the date in UTC,
                   i5                     the year,
                   3i3                    the month, the day, hour, minute,
                   f5.1                   second,
                i3    the reference frame 0 = Mean equator and equinox  B1950
                                          1 = True equator and equinox of date
                                          2 = Mean equator and equinox J2000
                a2    the code of the origin of observation
                                          X  for the absolute position
                i3    the number of the observed satellite                            
                f13.6 first observed coordinates or - if absent
                f13.6 second observed coordinates or - if absent
                f5.1  O-C from the 1st coordinates or - if absent
                f10.1 O-C from the 2nd coordinates or - if absent
                13x   plate scale, unknown at the present time
                i4    the code of the name of the observer
                   3x
                i5    the number of the series
                   2x
                i5    the number of the opposition
                i6    the code of the site
                   2x
                a10   so:
                   a6 the type of the coordinates 
                                . Separation [S] and/or Position angle [P]
                                . Tangential R.A. Da(cos(dec)) [DA] 
                                  and/or Tangential Dec.[D]
                                . Delta(a) [Da] OR/AND Delta(d) [Dd]   
                                  AND    Alpha and/or Delta
                   a4 the units of the coordinates
                a6    the origin of the reference frame 
                               . topocentric
                               . geocentric

2) - The file tab_vatoirabs_satu.dat

     Contents 
       - This file contains the 15 names of the sites with the code of them.

     Format
       - This is a sequential file with a recordsize of 36 bytes with the 
         following format,

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

3) - The file tab_vatorabs_satu.dat

     Contents 
       - This file contains the 29 names of the observers with the code of them.
         For the same name, there are various codes because it is not the same
         opposition. 

     Format
       - This is a sequential file with a recordsize of 37 bytes with the 
         following format,

         the name of the observer     a26,
         "coded"                      a5,
         the code of the observer     i5.

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