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astro-tools

Open-source tools for astrodynamics, orbital mechanics, and mission analysis.
README.md

astro-tools

Open-source tooling for astrodynamics, mission analysis, and space operations.

What is astro-tools?

astro-tools is a community developing open-source software for space mission design and analysis.

Core focus areas

  • Mission design & analysis — trajectory design, targeting, optimization, and maneuver planning.
  • Astrodynamics libraries — orbital mechanics, coordinate and time systems, force models, and propagation.
  • Interoperability — bridges, wrappers, and utilities around established tools (e.g. GMAT) and standard data formats (SPICE, CCSDS).
  • Automation & scripting — headless runners, batch workflows, and APIs that make mission analysis reproducible.
  • Learning resources — examples, tutorials, and reference missions that teach while they run.

Featured repositories

  • gmat-run — Run GMAT mission scripts from Python and get results as pandas DataFrames.

How to contribute

We welcome contributions of all sizes.

  1. Browse the repositories and find an area that interests you.
  2. Check the issues on the relevant repo — look for good first issue or help wanted labels.
  3. Open an issue before large changes so we can align on approach.
  4. Fork, branch, and open a pull request. Follow the repo's CONTRIBUTING.md if present.
  5. Join the discussion — new ideas, questions, and feedback are always welcome.

No contribution is too small — documentation fixes, examples, and bug reports are just as valuable as code.

Discussions

Have a question, idea, or proposal? Join us in GitHub Discussions.

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  1. gmat-run gmat-run Public

    Run GMAT mission scripts from Python and get results as pandas DataFrames.

    Python 1

  2. gmat-sweep gmat-sweep Public

    Run parameter sweeps and Monte Carlo dispersions over GMAT missions in parallel from Python.

    Python 1

  3. paper-tle-divergence-atlas paper-tle-divergence-atlas Public

    An empirical comparison of SGP4 and high-fidelity propagation against operator-updated truth across the Starlink megaconstellation. Open-science paper source — code, locked corpus, manuscript LaTeX.

    Python 3

  4. orbit-formats orbit-formats Public

    Lossless round-trip across orbital state-vector and ephemeris formats — TLE, CCSDS NDM, SP3, SPK, STK ephemeris, GMAT report.

    Python 2

  5. astrodynamics-mcp astrodynamics-mcp Public

    Model Context Protocol server giving any LLM client (Claude, ChatGPT, Cursor, agents) authoritative astrodynamics tools — TLE/SGP4, Lambert, ground-station access, time/frame conversions, porkchop,…

    Python 2

  6. gmat-czml gmat-czml Public

    Convert GMAT (and any canonical-schema) trajectories to CZML for browser-based 3D Cesium visualization.

    Python

Repositories

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