Era: Knowledge Base for Ephemeris and Dynamical Astronomy
Proceedings of IAU Colloquium 165, In: I.M. Wytrzyszczak, J.H.Lieske, R.A.Feldman, Dynamics and Astrometry of Natural and Artificial Celestial Bodies, Kluwer Academic Publishers, Dordrecht, 239-244 (1997)
About the paperAbstract
A brief description of a problem-oriented language SLON for ephemeris and dynamical astronomy and a corresponding programming system ERA is given. In the frame of the system the user has easy access to an embedded universal program package to process high precision positional observations of Solar system bodies as well as of artificial Earth satellites.