Local Level Lab

Airborne measurements. Open methods.

What keeps the prediction ranges wide?

This report displays the terms of already-verified certificates. It performs no new support calculation, propagation bound or native prediction.

The table uses the predeclared known-feasible generated sector in each group. It separates the affine calibration range from the saved unshared/arithmetic allowances. Outward endpoint rounding is retained in the CSV.

Candidate / removal Axis Total width (m) Affine part (m) Saved remainder floor (m) Fixed target (m) Floor exceeds target
Globe with specified field / zero north 1.0501 0.7079 0.3422 1.2567 No
Globe with specified field / zero east 1.4143 0.9584 0.4560 1.4066 No
Globe with specified field / zero height 1.0334 0.6861 0.3473 0.9204 No
Globe with specified field / profiled north 1.1351 0.7549 0.3802 1.2997 No
Globe with specified field / profiled east 1.4889 1.0008 0.4881 1.4443 No
Globe with specified field / profiled height 1.1194 0.7342 0.3853 0.9633 No
Globe with zero field / zero north 0.7631 0.5302 0.2329 1.1285 No
Globe with zero field / zero east 0.8551 0.6048 0.2503 1.1557 No
Globe with zero field / zero height 0.7286 0.4989 0.2297 0.8079 No
Globe with zero field / profiled north 0.9190 0.6182 0.3009 1.2069 No
Globe with zero field / profiled east 1.0246 0.7009 0.3237 1.2357 No
Globe with zero field / profiled height 0.8847 0.5870 0.2977 0.8864 No
Flat disc / zero north 0.5197 0.3655 0.1542 1.0117 No
Flat disc / zero east 0.1883 0.1349 0.0534 0.3079 No
Flat disc / zero height 0.5150 0.3614 0.1535 0.7648 No
Flat disc / profiled north 0.7033 0.4699 0.2333 1.1033 No
Flat disc / profiled east 0.2467 0.1684 0.0783 0.3354 No
Flat disc / profiled height 0.6982 0.4655 0.2327 0.8567 No

Saved remainder floors exceed the target on 0/18 known-feasible axes.

These saved floors do not themselves prevent the target. A bounded subdivision of the physical calibration domain is therefore a justified next test before more expensive native-bound recalculation.

These floors belong to the current error-range formula; they are not measurements of sensor noise or irreducible physical uncertainty. A floor argument requires a nonempty region, established here by each sealed known generated calibration. It does not establish that every other orientation sector is physically feasible.

Every sector/axis · Completed comparison · Roadmap.