scenarioHaloOrbit¶
Overview¶
This script sets up a 3-DOF spacecraft that is operating near-Halo orbit at L2 Earth-Moon Lagrange points. The purpose is to illustrate how to set up the spacecraft’s initial conditions to create a near-Halo orbit and convert the barycenter focused non-dimensional ICs to earth-centered inertial frame components.
The script is found in the folder basilisk/examples and executed by using:
python3 scenarioHaloOrbit.py
For this simulation, the Earth is assumed stationary, and the Moon’s trajectory is generated using SPICE. Refer to scenarioOrbitMultiBody to learn how to create multiple gravity bodies and read a SPICE trajectory.
When the simulation completes, three plots are shown. The first plot shows the orbits of the Moon and spacecraft in the Earth-centered inertial frame. The second and third plots show the motion of the spacecraft in a frame rotating with the Moon. In the second plot, the y-axis represents the Moon’s velocity direction, and in the third plot, the y-axis represents the cross product of the Moon’s position vector and velocity vector.
Illustration of Simulation Results¶
The following images illustrate the simulation run results with the following settings:
showPlots = True
