Fix Velocity Transform from ECI to ECEF - Githubissues

pathfinder-for-autonomous-navigation / psim

Six DOF flight simulator and related GNC implementations.

MIT License

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Fix Velocity Transform from ECI to ECEF #292

Closed kylekrol closed 3 years ago

kylekrol commented 3 years ago

Summary of Changes

Updated the transform for converting velocities from ECI to ECEF. The angular rate of Earth is always specified in ECEF and there the original transformation was incorrect and w x r should always be performed in a frame aligned with ECEF.
Add more plots to config/plots/truth/orbit.yml to show ECEF and ECI telemetry.

Testing

See the following image below. Before the change, the velocity was reported to be zero.

truth_v