In 1980 Bureau des Longitudes, taking the opportunity of a campaign of observations of the mutual phenomena of the Satellites of Saturn, published the ephemerides of the first eight satellites of this planet for February, March and April of that year. These ephemerides came from the theory by Rapaport (Thèse d'Etat, Bordeaux 1977). The differential coordinates of the bodies were developed into Chebyshev polynomials, these coordinates being well fitted for the location of the satellites and the Chebyshev developments giving the coordinates with a high accuracy. This initiative was welcomed by the observers and after the above mentioned campaign, many demands for more ephemerides were received at Bureau des Longitudes. This is why the publica...