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GSC Sentinel-2 PDGS OCD - Emits - ESA

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<strong>GSC</strong> <strong>Sentinel</strong>-2 <strong>PDGS</strong> <strong>OCD</strong><br />

Issue 1 Revision 2 (draft) - 25.07.2010<br />

GMES-GSEG-EOPG-TN-09-0008<br />

page 305 of 350<br />

6.16.3.2 Generation of Quality Control Daily Reports<br />

This scenario stands for the autonomous generation of the daily quality control reports based<br />

on the overall production.<br />

The daily quality control reports can include amongst other:<br />

‣ Relevant statistics on the configured quality indicators (geometric, radiometric,<br />

defective pixels, etc);<br />

‣ Product-data surface classification (land, sea, ice, clouds, etc);<br />

‣ Percentage of passed/failed quality control checks;<br />

‣ List of product-data which is format-corrupted or with any anomaly;<br />

‣ Quality disclaimers, to provide information on the quality properties of the product data<br />

already available to the users;<br />

‣ Significant anomalies detected on the production that may require special attention<br />

and intervention.<br />

The MPA function is autonomously fed with the production data grouped in specific quality<br />

control (logical) datasets (cf. section 6.11) via the MMUS function (i.e. using its download<br />

manager). In addition, the MPA function can take advantage of the <strong>PDGS</strong> functions deployed<br />

at the same centre – MPAC – (cf. section 5.3.2.3) to make use of the available mechanisms<br />

for data circulation and access to the local archive.<br />

The MPA function automatic checks and reports generation can be complemented by<br />

additional visual inspection activities of a sub-set of product images performed interactively by<br />

the expert teams.<br />

The MPA function quality control daily reports are supplied to the expert teams and available<br />

to the POM for the precise up-to-date information on the behaviour of the production chain.<br />

6.16.3.3 Generation of Quality Control N-Day Cyclic Reports<br />

This scenario analogous the previous one stands for the autonomous generation of the cyclic<br />

quality control reports based on the overall production. The nature and scope of the cyclic<br />

reports is different than the daily ones, more focused on statistics over key Quality Indicators,<br />

which allow assessing the production / instrument response trends on the long-term.<br />

The cyclic quality control reports over a given cycle period can include amongst other:<br />

‣ Relevant summary of statistics on key quality indicators (geometric, radiometric,<br />

defective pixels, etc);<br />

‣ Percentage of passed/failed quality control checks;<br />

‣ Evolution in time of the MSI characterisation;<br />

The MPA function autonomously generates the cyclic reports according to configuration on<br />

schedule-driven basis.<br />

The MPA function quality control cyclic reports, as for the previous scenario, are supplied to<br />

the expert teams and available to the POM for the precise up-to-date information on the<br />

behaviour of the production chain and the MSI characterisation.<br />

<strong>ESA</strong> UNCLASSIFIED – For Official Use<br />

© <strong>ESA</strong><br />

The copyright of this document is the property of <strong>ESA</strong>. It is supplied in confidence and shall not be reproduced, copied or<br />

communicated to any third party without written permission from <strong>ESA</strong>.

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