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

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

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996cemda..66..293v&link_type=abstract

Celestial Mechanics and Dynamical Astronomy, Volume 66, Issue 3, pp.293-308

Statistics

Computation

1

Ephemerides, Extrapolation Methods, Numerical Integration, Orbit Computation, Solar System

Scientific paper

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 makes the algorithm convenient for the direct computation of high precision ephemerides over a time span of several millennia.

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