Reference-point derivative checks

All seven controls pass. They check the force-source values and all 27 calibration derivative columns against a separate exact-rational rotation calculation. The checks include noncommuting rotations, nonzero calibration, both packet phases and the clock origin and packet-end conventions.

The study used its 20 source calls, 20 packet steps, six initializations, 115 rational reference calls and seven input-rejection checks. It read no aircraft recordings and performed no trajectory fits. Its saved evidence and work reservations have been verified.

This supplies the point-derivative component needed by the proposed tighter prediction bound. The next step is to combine it with the independently checked calibration and rotation-product remainders, and account explicitly for the numerical source values and rows used by the integrator. Then the complete candidate must pass native controls and a full-history usefulness screen.

No aircraft prediction range or scientific conclusion changes from these component checks. The last complete prediction-width comparison still passes four of six generated groups.

Results · Frozen scope · Construction · Roadmap.