ADCS Flight Software Repo:

https://github.com/stanford-ssi/samwise-adcs-flight

Some Useful (but mathematically complicated) References:

Coordinate frames: https://www.mathworks.com/help/aerotbx/ug/coordinate-systems-for-navigation.html
J2 perturbation: https://en.wikipedia.org/wiki/Equatorial_bulge#Formulation
RK4 intergation: https://en.wikipedia.org/wiki/Runge–Kutta_methods
Spherical harmonics: https://en.wikipedia.org/wiki/Spherical_harmonics
Quaternions: https://en.wikipedia.org/wiki/Quaternions_and_spatial_rotation
Attitude dyamics: https://en.wikipedia.org/wiki/Euler's_equations_(rigid_body_dynamics)
Kalman Filter (and EKF): https://en.wikipedia.org/wiki/Kalman_filter#Details

6DOF Sim 🖥️ 🌎

The first main project for ADCS, is developing a robust simulation (name TBD) of our satellite in orbit in order to validate our algorithms, and appropriately size our hardware.

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Sims github here: https://github.com/stanford-ssi/samwise-adcs-sims

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It will be implemented in python and will consist of several modules, grouped into a few main categories (see below). Each major bullet point can be implemented largely independently, and they will all be wired together in the final sim.