L3 and L4 Quality control

The production of homogeneous products with high-quality data and within a short time period is the key feature of the DUACS processing system. But some events (failure on payload or on instruments, delay, maintenance on servers), can impact the quality of measurements or the data flows. A strict quality control on each processing step is indispensable to appreciate the overall quality of the system and to provide the best user services.

The Quality Control is the final process used by DUACS before product delivery. In addition to daily automated controls and warnings to the operators, each production delivers a large QC Report composed of detailed logs, figures and statistics of each processing step. An overview of the diagnostics used is given in section Products Quality. Altimetry experts analyse these reports twice a week (only for internal validation, thus those reports are not disseminated).