GSC Sentinel-2 PDGS STBD - emits - ESA

GSC Sentinel-2 PDGS STBDIssue 1 Revision 2 (draft) - 25.07.2010GMES-GSEG-EOPG-TN-09-0031page iv of viT A B L E O F C O N T E N T S1. INTRODUCTION ...........................................................................................11.1 Purpose of the Document...........................................................................11.2 Scope and Dependencies ..........................................................................11.3 Reference Documents................................................................................21.4 Acronyms ...................................................................................................31.5 Definitions ..................................................................................................41.6 Document Overview...................................................................................42 RECALL OF THE MAIN DRIVERS APPLICABLE TO PDGS SIZING.........52.1 Mission Data Volumes................................................................................52.2 Systematic Processing and Product Availability Timeliness.......................52.3 Product Quality...........................................................................................52.4 PDGS Distributed Architecture...................................................................53 PDGS PROCESSING BUDGET ANALYSIS ................................................63.1 Introduction ................................................................................................63.1.1 PDGS Processing System .........................................................................63.1.2 Processing Rationale and Timeline Constraints.........................................63.1.3 Processing Algorithm .................................................................................93.1.4 Processing Budget Reference Hardware .................................................123.2 Reference Benchmarks............................................................................133.2.1 The processing chain for the benchmarks................................................133.2.2 Benchmarked processing times ...............................................................163.2.2.1 Level-0 processing times..........................................................................163.2.2.2 Level-0 Consolidation and Level-1 processing times ...............................163.2.2.3 Overall processing times by product level ................................................183.3 Processing Parallelisation Analysis..........................................................193.3.1 Parallelisation Approach...........................................................................193.3.2 Analysis of Parallelisation Opportunities ..................................................223.3.2.1 Level-0 Processing...................................................................................233.3.2.1.1 MSI Telemetry Analysis: Parallelization by Detector ................................23ESA UNCLASSIFIED – For Official Use© ESAThe copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied orcommunicated to any third party without written permission from ESA.