
#1
Jul2307, 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? 



#2
Jul2407, 07:45 PM

Sci Advisor
PF Gold
P: 1,542

Here's a short tutorial I wrote for my program, Gravity Simulator
http://orbitsimulator.com/gravity/tu....html#horizons But you can use the data for your own program as well. This describes the email method. In addition, Horizons also offers Telnet and Web based services. 



#3
Jul2407, 08:27 PM

P: 2

Thank you tony. I will read this tutorial.



Register to reply 
Related Discussions  
What's the difference between initial conditions and boundary conditions?  Differential Equations  9  
Initial conditions for PDE  Differential Equations  2  
DE with initial conditions  Calculus & Beyond Homework  2  
Applying Initial Conditions  Differential Equations  1  
Question Regarding Initial Conditions.  Differential Equations  1 