# Numerical integration for the real time production of fundamental ephemerides over a wide time span

@article{Vitagliano1996NumericalIF, title={Numerical integration for the real time production of fundamental ephemerides over a wide time span}, author={Aldo Vitagliano}, journal={Celestial Mechanics and Dynamical Astronomy}, year={1996}, volume={66}, pages={293-308} }

A simplified model of the solar system has been developed along with an integration method, enabling to compute planetary and lunar ephemerides to an accuracy better than 1 and 2 milliarcsecs, respectively. On current personal computers, the integration procedure (SOLEX) is fast enough that by using a relatively small (∼ 20 Kbytes/Cy) database of starting conditions, any epoch in the time interval (up to ±100 Cy) covered by the database can be reached by the integrator in a few seconds. This…

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