Local Level Lab

Airborne measurements. Open methods.

Identify which internal error terms keep the ranges wide

The column-specific orientation comparison passes correctness but still misses the fixed target. Do not repeat it or add another matrix-constraint grid before locating the remaining width. Use a separate saved-only diagnostic.

Select the unique known-truth sector of each of the six existing generated model/processing cases, after all source predictions are sealed. For each case, temporarily fix exactly one existing auxiliary block to its stored known physical value, leaving all other coordinates at the saved bounds:

Block Coordinates Meaning
Reference terms 27–32 Shared velocity/clock and initial lever corrections
Acceleration/clock 33–38 Shared quadratic and linear clock effects
Acceleration remainder 39–41 Shared nonlinear acceleration approximation error
Force matrix 42–50 Shared nonlinear rotation/gain matrix error

These are internal approximation allowances, not measured device noise. Supplying their exact simulated values is an oracle-assisted ablation, unavailable for an unknown real calibration. It cannot clear a prediction gate or be promoted as an uncertainty method, even if its conditional widths meet the old target.

Local tests must check block indexing, preservation of all 51 coordinates, rejection of an out-of-box anchor, an exactly known width reduction and an unrelated fixed block that correctly leaves the width unchanged. Reuse the qualified saved-support calculation and independent endpoint audit. Retain all original training constraints and previous valid certificates as fallbacks. Do not recompute native tangents, nonlinear bounds or source-reference maps.

Freeze 24 identities: six groups crossed with four fixed blocks. Allow six LP proposals per identity, 144 total, and 576 exact support evaluations including fallback and independent checks. Four workers use one thread each, with a 300-second cooperative allowance. Zero native calls, bounds, original aircraft reads, observed fits or protected outcomes. No retries or budget expansion.

Verify each saved physical anchor against the source region before fixing any block. Save the conditional ranges, bounds, certificates and explicit oracle label. Check containment of the saved known future outcome afterward. Report all 24 outcomes, absolute widths and ratios to their unchanged source-sector widths. The diagnostic uses one sector per case and does not replace the complete union across all sectors. It does not assign additive percentages of total uncertainty.

Use the result to choose a stronger source-bound dependency or propagation calculation. Preserve uninformative or failed outcomes without replacements. Actual recording-scale usefulness, numerical treatment and observational error coverage remain open requirements.