Orekit
The premium Open Source alternative to AGI STK (Systems Tool Kit)
🎯 Best for:Engineers building custom flight dynamics or mission analysis software.
What is Orekit?
A low-level space dynamics library providing the mathematical building blocks for orbital mechanics. It implements precise force models, propagation algorithms, and attitude management in a validated Java framework.
Tech Stack
JavaPhysics & Astronomy
Why Orekit?
- • High mathematical precision
- • Extensive validation
- • Large industrial community
Limitations
- • No native GUI
- • Java-only core
- • High domain knowledge required
3/3/2026
Last Update
101
Forks
2
Issues
Apache-2.0
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to Orekit instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on AGI STK (Systems Tool Kit))
Self-Hosted
$0
/ year
Team Size10 Users
150+
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