Leia — Geostationary Mission Simulation, Reinvented
Leia is a high-fidelity standalone software tool that brings Vinterstellar’s space mission expertise directly into your hands. From EOR (Electric Orbit Raising) optimization to SK (Station Keeping), Injection, Relocation and EOL (End Of Life) maneuvers, all the way to early-phase validation. Everything fits into an intuitive and easy-to-use interface.
The name Leia reflects the software’s core: Low-thrust trajectory design built around the classical orbital parameters e (eccentricity), i (inclination), and a (semi-major axis).
Leia offers:
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Optimal Electric Orbit Raising (EOR) transfers.
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Station Keeping (SK) planning.
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Injection, relocation and End-Of-Life (EOL) maneuvers.
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Platform design insight.
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Mission analyses (propellant budget, eclipse analysis, etc)
About Leia
Originally developed as a result of Vinterstellar’s work for SWISSto12, Leia is a proven tool that has supported all mission analyses for the HummingSat platform during all mission phases: from Launch and Early Operations Phase (LEOP) and Electric Orbit Raising (EOR), Insertion, Station Keeping (SK), Relocation, and De-commissioning. Building on this heritage, Leia’s toolset is expanding to provide the same level of robust support for LEO missions.
The simulator is highly versatile, supporting both high-precision single-run studies as well as extensive Monte Carlo campaigns. Its capabilities include launch window analysis, eclipse and coverage assessments, propellant budget estimations, and the optimisation of EOR, SK, and insertion, relocation and graveyard manoeuvres. Originally developed in MATLAB/Simulink, Leia is currently being migrated to Python, primarily for cost and deployment flexibility reasons.
Everything You Need in One Mission Tool
1. Electric Orbit Raising Module
Plan, simulate, and optimize your transfer from injection orbit to GEO.
2. Station-Keeping Module
Evaluate long-term strategies, fuel usage, and guidance robustness throughout the entire operational life.
3. Platform Design Insight
Understand how your thrusters, power system, and CONOPS impact the full mission lifecycle.
4. Mission Validation
Run feasibility checks that reduce operational risks and accelerate decision-making.
5. Data Export for Engineering Teams
Download results and feed them directly into downstream engineering analyses.
6. Future Expansion
LEO mission support and additional maneuver libraries coming soon.