Hello! This is Ishan Tare, an undergrad student. I’ve been working on ASTRA-Core, a pip-installable Python library designed to simulate real-world orbital dynamics, from basic propagation to full space traffic analysis.
This idea started as a basic space debris visualizer and finally became an engine for precise calculations.
At its core, it’s a numerical astrodynamics engine, and on top of that I built a complete Space Situational Awareness (SSA) pipeline.
Core capabilities:
- High-fidelity orbital propagation (Cowell integration with J2–J4, drag, third-body perturbations)
- Continuous-thrust maneuver simulation with mass depletion (7-DOF state)
- Flexible force modeling + numerical integration
Built on top of that:
- Conjunction detection (spatial indexing + TCA refinement)
- Collision probability (Pc via Monte Carlo + STM)
- End to end collision avoidance simulation
Just released v3.2.0! (had to make lots of changes I didn't know about)
If you’re into orbital mechanics / astrodynamics / space systems, I’d really appreciate feedback, especially on the physics modeling and architecture.
If you get a chance to try it out and find it useful, I’d love to hear your thoughts…. and a star on the repo would mean a lot.
Repo: https://github.com/ISHANTARE/ASTRA
Install: pip install astra-core-engine
by Sensitive-Teacher836