How to find data on Earth, planets, motions

[giann_tee]

I am studying the problem of ice ages and I wonder how do I find, in what form the most modern, "official" data about motion of Earth through space? Presumably this includes data about whole solar system for calculating perturbations.

As I understand that set of data should give all different periods such as variation in eccentricity and others.

 

[Janus]

Try this:

http://ssd.jpl.nasa.gov/txt/p_elem_t2.txt