Using JPL Horizons to Obtain Inertial Positions and Velocities: A Tutorial

[playmobil]

Hi guys, help me.

I have a code for integrate the equations of motion of three bodies in a inertial frame, and in cartesian coordinates (x, y, z, vxi, vyi, vzi), i=1,2,3.
The question is, how can i use the data of JPL Horizons to obtain positions and velocities in a inertial frame?

 

[tony873004]

Here's a short tutorial I wrote for my program, Gravity Simulator
http://orbitsimulator.com/gravity/tutorials/tutorials.html#horizons

But you can use the data for your own program as well.
This describes the e-mail method. In addition, Horizons also offers Telnet and Web based services.

 

[playmobil]

Thank you tony. I will read this tutorial.