Manual TODO file, no claude's allowed!


=== Project Documentation ===
	- update docs/implementation plan with claude, and try to condense, and remove
		completed objectives
		- maybe also combine with docs/verbose_project_overview ?
		- remember to update project README if needed for changes

	- add flag to Makefile for running in --headless mode for testing
		- add this to CLAUDE.md

	- the other claude generated files in docs/ are also overly verbose


=== Orbital Mechanics/Physics ===
	- change orbit propagation method to Newton-Raphson
		- tell claude to move any updated changes into 'staging' block comment for
			easier review, and for later refactoring
		- find some test data for solar system object orbits for verification
		- also need tests for circular orbits, and orbits which might have anomalies
			with simple trig equations
		- a nice concise reference doc: https://web.mit.edu/10.001/Web/Course_Notes/NLAE/node6.html
		- lastly test with different time steps to find an 'acceptable' error that's
			pretty accurate, but doesn't take too many iterations. I used < 10
			originally in orbital_shipping

	- parabolic, and hyperbolic orbits with tests