The polynomials are an end result of thousands of complex calculations. For more details, see http://ipnpr.jpl.nasa.gov/progress_report/42-196/196C.pdf http://

The polynomials are an end result of thousands of complex calculations. For more details, see http://ipnpr.jpl.nasa.gov/progress_report/42-196/196C.pdf http://ipnpr.jpl.nasa.gov/progress_report/42-196/196C.pdf . Many effects, including general relativity and the gravitational perturbations of the planets and several hundred asteroids, were included.