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Evidence, not confidence

Know what the verdict can prove.

A quality score, a coordinate solution and agreement between two solutions answer different questions. We keep those boundaries visible.

01 / A reproducible quality check

69.6/100
quality score

The bundled BJFS sample scored 69.6 in Fast Mode: all epochs were present, but no multipath measurements were recorded, earning 0/30 for that component. Its sampling interval is 30 seconds. Open the bundled example in the free quality check for the latest computed result.

How the quality score is calculated

02 / Independent solutions, shared inputs

Precise-positioning cross-check runs two independent scientific-grade geodetic engines on the same uploaded observation set, then compares matched station coordinates. It is separate from the Fast Mode quality check. Both sides must return usable results for a two-sided comparison; an absent solution is not agreement.

Read the processing method and capability limits

03 / What 20 mm actually means

The approved cross-check agreement threshold is 20 mm in three dimensions per uploaded station. The run is within threshold only when every uploaded station has a two-sided comparison at or below that difference. Added reference stations are informative, not the deciding population. The threshold determines the agreement conclusion, not permission to publish a solution.

The initial approval used 14 samples, below the planned 20-sample gate: eight uploaded stations in live runs and six acceptance pairings. The owner accepted that limited evidence. It is not independent certification or a promise that future uploads will agree.

04 / Agreement is not ground truth

Two solutions can share errors in input data, station metadata or reference-frame assumptions. Agreement does not establish external accuracy, legal suitability or fitness for a deliverable. Check frame, epoch, antenna setup and independent control. We publish failure rates and charging boundaries so you can decide whether a run is appropriate.

View live status and methodologyRefund boundaries