Document expected orbital positions and velocities for the simple
test case (configs/test_simple.txt):
- Expected orbital periods (Earth 365d, Mars 687d)
- Expected velocities (Earth 29.789 km/s, Mars 24.323 km/s)
- Verification points at quarter/half/full orbit
- Quick test commands
- Acceptable tolerances for numerical integration
Provides reference values to verify simulation accuracy by comparing
actual output against predicted positions and angles.
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>