HOMA has officially been retired. We’re excited to introduce ZERUA, the next-generation space simulation tool that builds upon HOMA’s legacy with advanced 3D visualizations, real-world satellite data, and powerful orbit analysis features.
Thank you for being part of HOMA’s journey—see you in ZERUA!
HOMA has officially been retired in January 2025. We’re excited to introduce ZERUA, the next-generation space simulation tool that builds upon HOMA’s legacy with advanced 3D visualizations, real-world satellite data, and powerful orbit analysis features.
Thank you for being part of HOMA’s journey. See you in ZERUA!
For over a decade, HOMA stood as a gateway to the cosmos. What began in 2014 as a simple tool to explore orbital mechanics soon became a trusted companion for thousands of space enthusiasts, students, and dreamers. Together, we simulated orbits, decoded the laws of celestial motion, and learned the language of gravity, not in classrooms, but in front of glowing screens filled with stars, vectors, and velocity curves. To everyone who ever launched a virtual satellite, tweaked an inclination, or watched a ground track unfold, thank you. You made HOMA come alive.
Your passion is what propelled us forward, straight into Zerua. It was your curiosity, your feedback, your simulated missions that lit the spark. The lessons learned, the questions asked, and the enthusiasm you poured into HOMA have now become the foundation of something even greater. Zerua is not just a successor; it is the evolution of everything we built together. With a broader vision, sharper tools, and a reimagined interface, Zerua carries forward HOMA’s spirit, and aims higher.
Orbital mechanics is not just math. It's the poetry of motion in space. Understanding it deepens our connection to the universe and empowers us to shape the future of exploration. We believe everyone deserves access to that knowledge, from high school students to seasoned engineers. That belief shaped HOMA, and it now fuels Zerua. As we close this chapter, we invite you to step into the next. The journey is far from over, and space is still waiting.
Orbit Simulator
A total of
174431
orbits were simulated with HOMA between 2014 and 2025.
A legacy of curiosity and exploration!
A free and easy to use online space orbit simulator that runs in web browsers.
3D visualization of space orbits in Earth Centered Inertial coordinate system.
Supports all types of circular, elliptical, parabolic and hyperbolic orbits.
Displays satellite ground track and trajectory with high quality graphics.
Analysis and design of space orbits along with generating orbital characteristics.
Simulation of spacecraft position, velocity, and representation of their variations.
Calculation of mean anomaly, eccentric anomaly, and flight path angle for different trajectories.
No registration is needed.
MATLAB-based version
The MATLAB-based version of Homa was a simulation tool with proprietary license, which allows space engineers to perform complex analyses of space orbits, spacecraft dynamics and control, and achieve results in one integrated environment.
Demonstration of Simulink module of Homa, capable of simulating spacecraft dynamics and visualizaing space trajectories
Screenshots
Orbital mechanics is a fundamental discipline in aerospace engineering, essential for understanding spacecraft trajectories, satellite operations, and mission planning. It enables precise calculations for satellite positioning, orbital maneuvers, and interplanetary travel. The space industry depends heavily on this knowledge, making it a core area of study for any aspiring aerospace engineer.
