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About initial conditions...

by playmobil
Tags: conditions, initial
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Jul23-07, 07:30 PM
P: 2
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?
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Jul24-07, 07:45 PM
Sci Advisor
PF Gold
P: 1,542
Here's a short tutorial I wrote for my program, Gravity Simulator

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.
Jul24-07, 08:27 PM
P: 2
Thank you tony. I will read this tutorial.

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