GSC Sentinel-2 PDGS SRD - emits - ESA

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GSC Sentinel-2 PDGS SRD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-RD-09-0028 page 84 of 204 5.3.3 OPERATIONAL REQUIREMENTS S2-PDGS-DPC-300 The PDGS/DPC function shall be deployed and operated locally in each centre requiring data reception or processing capabilities i.e. in CGSs, in PACs and in the MPAC. S2-PDGS-DPC-305 The PDGS/DPC function shall generate synthetic operation reports along time, providing periodic and self-consistent updates over the recently performed activities (successful and failed) consolidated using the processing reports generated by the IDP and OLQC functions. The generated reports shall be systematically routed to the MCC function for configuration control and further processing. S2-PDGS-DPC-310 The PDGS/DPC function shall receive the ISPs transmitted by the spacecrafts from the DRX/DFEP function as part of L0 data generation activities. S2-PDGS-DPC-315 The PDGS/DPC function shall process the two streams of MSI ISPs supplied by the DRX function (half MSI swath on each one) in parallel as part of the MSI L0 generation activities. S2-PDGS-DPC-320 The PDGS/DPC function shall perform the HKTM and MSI Level-0, Level-1 and TCI processing systematically and in a data-driven manner. S2-PDGS-DPC-325 The PDGS/DPC function shall schedule and coordinate the systematic and data-driven on-line quality control processing over all the generated L0 and L1 production. S2-PDGS-DPC-330 The PDGS/DPC function shall trigger and coordinate the execution of the hostedprocessing tasks (e.g. L2A prototype) on request of the DAG function. S2-PDGS-DPC-335 The PDGS/DPC function scheduled and orchestrated reprocessing activities shall not interfere with the nominal processing activities performed after each satellite pass. S2-PDGS-DPC-340 The PDGS/DPC function shall recover from a failed data processing workflow, group of workflows, or from a global processing contingency during a satellite pass on operator request. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
GSC Sentinel-2 PDGS SRD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-RD-09-0028 page 85 of 204 S2-PDGS-DPC-345 The PDGS/DPC function shall prioritize the nominal processing activities (new data) over the reprocessing ones to meet the new products timeliness requirements. S2-PDGS-DPC-350 The PDGS/DPC function shall prioritize the nominal processing activities over hostedprocessing activities. S2-PDGS-DPC-355 The PDGS/DPC function shall package the generated L0 PDIs in SAFE format. S2-PDGS-DPC-360 The PDGS/DPC function shall define a clear self-standing process for the swift integration of the third-party processors issued from the hosted-processing collaboration framework. S2-PDGS-DPC-365 The PDGS/DPC function shall supply status information over all its processes and resources (i.e. log information, disk volumes usage, alarms, etc.) in real-time via the M&C function. 5.3.4 RAMS REQUIREMENTS S2-PDGS-DPC-370 The PDGS/DPC function shall not propagate single processing contingencies (i.e. SW crash) to any other processing activity or globally to itself. S2-PDGS-DPC-375 The PDGS/DPC function shall ensure that processing tasks to not run indefinitely or for unrestrained times. S2-PDGS-DPC-380 The PDGS/DPC function shall cope dynamically with single contained HW contingencies (e.g. one or several processing nodes HW failures). As such, it shall be able in such contingencies to schedule or reschedule the execution of the processing activities on the HW resources left. S2-PDGS-DPC-385 The PDGS/DPC function shall ensure in a pre-emptive manner that the processing resources (i.e. processing node, memory, disk, etc) assigned to the execution of a processing activity are adequately sized and configured to complete the processing activity. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
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Appendix B D O C U M E N T document
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[RD-11] GMES Sentinel-2 Phases B2,
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ESA UNCLASSIFIED - For Official Use
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