We carried out several simulations of the orbits of the major planets. The project is ongoing, as we are still incorporating small corrections into the physical model. One of the goals was to provide better data for paleoclimatology. Since we did not include the figure of Earth in our model, we cannot provide time series for obliquity and precession. We plan to incorporate rotational dynamics into future simulations.
The main data product we offer is Earth's orbital eccentricity. We hope to provide more data in the future, such as additional Earth orbital elements and also orbital elements for additional planets, such as Mars. If you would like to have such data now, please contact us at varadi@ucla.edu.
Data file of Earth's orbital eccentricity.
(Hint: if you want to save this file without viewing it, use the "Save link as ..." feature of your browser.)
The size of this text file is about 1 MB. The first column is time, in Myr before present, the second column is eccentricity. The sampling rate is about 3400 years, starting at about 4400 years and stopping at about 110 Myr. The simulation details, especially the accuracy of the data, are discussed in a paper with a link below. The data set in this file is from the simulation designated as R7 in the paper.
The same file in compact, zipped form has about 300 KB.
These are small GIF files of plots of the same data.
( 0-10 Myr ) ( 10-20 Myr ) ( 20-30 Myr ) ( 30-40 Myr ) ( 40-50 Myr )
( 0-100 Myr )
Data file of Earth's orbital inclination.
Orbital inclination is computed in radians and relative to the solar system's invariable plane, which is the plane perpendicular to the system's angular momentum vector. The data file has the same format as the one for eccentricity and it is also for the same simulation, R7.
The same file in zipped form, about 300 KB.
These are small GIF files of plots of the same data.
( 0-10 Myr ) ( 10-20 Myr ) ( 20-30 Myr ) ( 30-40 Myr ) ( 40-50 Myr )
( 0-100 Myr )
