Local Level Lab

Airborne measurements. Open methods.

Why the ESA stopping checks fail

24/24 fixed-point diagnostics completed and verified.

These are probes around the already saved calibrations, not new fits. Only the earlier 800 receiver observations and their IMU support are used. Every original convergence label and accuracy limit stays unchanged.

Candidate Removal case Working errors Source start Original numerical pass Fresh repeat identical Replayed stopping checks
Globe + field Zero Short memory 0 No Yes relative_cost_change
Globe + field Zero Short memory 1 No Yes relative_cost_change
Globe + field Zero Persistent 0 Yes Yes All satisfied
Globe + field Zero Persistent 1 No Yes relative_cost_change
Globe + field Profiled Short memory 0 No Yes relative_cost_change
Globe + field Profiled Short memory 1 No Yes relative_cost_change
Globe + field Profiled Persistent 0 No Yes relative_cost_change
Globe + field Profiled Persistent 1 No Yes relative_cost_change
Globe + zero field Zero Short memory 0 Yes Yes All satisfied
Globe + zero field Zero Short memory 1 No Yes position_rms
Globe + zero field Zero Persistent 0 Yes Yes All satisfied
Globe + zero field Zero Persistent 1 Yes Yes All satisfied
Globe + zero field Profiled Short memory 0 No Yes position_rms
Globe + zero field Profiled Short memory 1 Yes Yes All satisfied
Globe + zero field Profiled Persistent 0 No Yes position_rms
Globe + zero field Profiled Persistent 1 Yes Yes All satisfied
Disc Zero Short memory 0 No Yes position_rms
Disc Zero Short memory 1 No Yes position_rms
Disc Zero Persistent 0 Yes Yes All satisfied
Disc Zero Persistent 1 No Yes position_rms, position_maximum
Disc Profiled Short memory 0 No Yes position_rms
Disc Profiled Short memory 1 No Yes position_rms
Disc Profiled Persistent 0 No Yes position_rms
Disc Profiled Persistent 1 Yes Yes All satisfied

The replay column explains the fresh local check. It does not replace the original numerical label or add an accepted model comparison. The accompanying table also retains cost changes, position changes and linearization differences for every source point.

Repeated native calculations and scaled bounded corrections can identify reproducibility or local resolution problems. They do not by themselves prove a roundoff bound, a global optimum or instrument accuracy.

The run charged 240 native sweeps in 21.90 minutes. The saved-array audit recomputes costs, all-column stationarity, the unchanged bounded correction and physical position differences, with no trajectory propagation. Seven confirmation groups remain protected.

Every source point · Frozen plan · Original comparison · Roadmap.