The JSC Engineering Orbital Dynamics (JEOD) Software Package is a simulation tool designed to work with NASA Trick Simulation Environment that provides vehicle trajectory generation by the solution of a set of numerical dynamical models. These models are subdivided into four categories. There are Environment models representing the conditions surrounding the vehicle, Dynamics models for integrating the equations of motion, Interaction models representing vehicle interactions with the environment, and a set of mathematical and orbital dynamics Utility models.
JEOD is designed to simulate spacecraft trajectories in flight regimes ranging from low Earth orbit to lunar operations, interplanetary trajectories, and other deep space missions. JEOD can be used to simulate a stand-alone spacecraft trajectory and attitude state, or it can be interfaced with a larger simulation space, such as coupling with spacecraft effectors and guidance, navigation and control systems. More than one spacecraft can be simulated about one central body or separate spacecraft about separate central bodies.
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JEOD is released under the NASA Open Source Agreement Version 1.3.
Simulation and Graphics Branch, Mail Code ER7
Software, Robotics & Simulation Division
NASA, Johnson Space Center
2101 NASA Parkway, Houston, TX 77058